./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label20.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc39b25e5d6bf00ba7a149cc452827f6c69f8a46e091e8e5858372a0b5fafb1a
..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 22:50:32,217 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-28 22:50:32,221 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 22:50:32,282 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 22:50:32,283 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 22:50:32,285 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 22:50:32,288 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 22:50:32,291 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 22:50:32,294 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 22:50:32,297 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 22:50:32,299 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 22:50:32,302 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 22:50:32,304 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 22:50:32,309 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 22:50:32,311 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 22:50:32,315 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 22:50:32,318 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 22:50:32,324 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 22:50:32,330 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 22:50:32,335 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 22:50:32,343 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 22:50:32,345 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 22:50:32,347 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 22:50:32,350 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 22:50:32,359 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 22:50:32,365 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 22:50:32,365 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 22:50:32,367 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 22:50:32,369 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 22:50:32,371 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 22:50:32,372 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 22:50:32,373 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 22:50:32,376 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 22:50:32,377 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 22:50:32,379 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 22:50:32,380 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 22:50:32,381 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 22:50:32,382 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 22:50:32,382 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 22:50:32,383 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 22:50:32,384 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 22:50:32,385 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 22:50:32,442 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-28 22:50:32,443 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 22:50:32,444 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 22:50:32,444 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 22:50:32,454 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 22:50:32,454 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-28 22:50:32,454 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-28 22:50:32,455 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 22:50:32,455 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-28 22:50:32,455 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-28 22:50:32,457 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-28 22:50:32,457 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-28 22:50:32,457 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 22:50:32,458 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 22:50:32,458 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 22:50:32,458 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-28 22:50:32,459 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-28 22:50:32,459 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-28 22:50:32,459 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-28 22:50:32,460 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 22:50:32,460 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-28 22:50:32,460 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-28 22:50:32,460 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 22:50:32,461 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 22:50:32,461 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 22:50:32,461 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 22:50:32,462 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-28 22:50:32,462 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 22:50:32,462 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-10-28 22:50:32,463 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 22:50:32,463 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 22:50:32,463 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-28 22:50:32,464 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/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_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc39b25e5d6bf00ba7a149cc452827f6c69f8a46e091e8e5858372a0b5fafb1a
[2021-10-28 22:50:32,865 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 22:50:32,901 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 22:50:32,905 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 22:50:32,907 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-28 22:50:32,908 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-28 22:50:32,909 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/eca-rers2012/Problem14_label20.c
[2021-10-28 22:50:33,001 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/data/123711679/f35c8895ab8543c2bc5e5950bd968c2b/FLAG3f2ff2d68
[2021-10-28 22:50:33,733 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-28 22:50:33,737 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/sv-benchmarks/c/eca-rers2012/Problem14_label20.c
[2021-10-28 22:50:33,764 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/data/123711679/f35c8895ab8543c2bc5e5950bd968c2b/FLAG3f2ff2d68
[2021-10-28 22:50:33,891 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/data/123711679/f35c8895ab8543c2bc5e5950bd968c2b
[2021-10-28 22:50:33,893 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 22:50:33,894 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 22:50:33,908 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 22:50:33,908 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 22:50:33,912 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 22:50:33,913 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:50:33" (1/1) ...
[2021-10-28 22:50:33,916 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207f987f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:33, skipping insertion in model container
[2021-10-28 22:50:33,917 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:50:33" (1/1) ...
[2021-10-28 22:50:33,926 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-28 22:50:34,007 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-28 22:50:34,323 WARN  L228   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_6357c01f-daa0-443b-ba1e-979b1cac604e/sv-benchmarks/c/eca-rers2012/Problem14_label20.c[6130,6143]
[2021-10-28 22:50:34,590 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-28 22:50:34,601 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-28 22:50:34,649 WARN  L228   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_6357c01f-daa0-443b-ba1e-979b1cac604e/sv-benchmarks/c/eca-rers2012/Problem14_label20.c[6130,6143]
[2021-10-28 22:50:34,803 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-28 22:50:34,821 INFO  L208         MainTranslator]: Completed translation
[2021-10-28 22:50:34,822 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34 WrapperNode
[2021-10-28 22:50:34,822 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 22:50:34,823 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 22:50:34,824 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 22:50:34,824 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 22:50:34,833 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:34,861 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:34,944 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 22:50:34,945 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 22:50:34,945 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 22:50:34,946 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 22:50:34,956 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:34,957 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:34,964 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:34,964 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:35,011 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:35,025 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:35,037 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:35,056 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 22:50:35,057 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 22:50:35,058 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 22:50:35,058 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-28 22:50:35,059 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (1/1) ...
[2021-10-28 22:50:35,068 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 22:50:35,084 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:50:35,120 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 22:50:35,136 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 22:50:35,173 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 22:50:35,173 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 22:50:35,173 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 22:50:35,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 22:50:36,956 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 22:50:36,956 INFO  L299             CfgBuilder]: Removed 7 assume(true) statements.
[2021-10-28 22:50:36,959 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:36 BoogieIcfgContainer
[2021-10-28 22:50:36,960 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 22:50:36,962 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 22:50:36,962 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 22:50:36,966 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-28 22:50:36,966 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:50:33" (1/3) ...
[2021-10-28 22:50:36,967 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae48b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:50:36, skipping insertion in model container
[2021-10-28 22:50:36,968 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:34" (2/3) ...
[2021-10-28 22:50:36,968 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae48b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:50:36, skipping insertion in model container
[2021-10-28 22:50:36,968 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:36" (3/3) ...
[2021-10-28 22:50:36,970 INFO  L111   eAbstractionObserver]: Analyzing ICFG Problem14_label20.c
[2021-10-28 22:50:36,976 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 22:50:36,976 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-10-28 22:50:37,037 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 22:50:37,045 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-28 22:50:37,045 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-28 22:50:37,071 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:37,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2021-10-28 22:50:37,082 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:37,083 INFO  L513         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:37,083 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:37,090 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:37,090 INFO  L85        PathProgramCache]: Analyzing trace with hash -634083006, now seen corresponding path program 1 times
[2021-10-28 22:50:37,102 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:37,102 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984262624]
[2021-10-28 22:50:37,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:37,104 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:37,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:37,424 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:50:37,424 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:37,425 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984262624]
[2021-10-28 22:50:37,426 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984262624] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:37,426 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:37,426 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 22:50:37,428 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998620024]
[2021-10-28 22:50:37,434 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:37,434 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:37,449 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:37,450 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:37,453 INFO  L87              Difference]: Start difference. First operand  has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:38,710 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:38,711 INFO  L93              Difference]: Finished difference Result 669 states and 1200 transitions.
[2021-10-28 22:50:38,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:38,713 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60
[2021-10-28 22:50:38,714 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:38,731 INFO  L225             Difference]: With dead ends: 669
[2021-10-28 22:50:38,732 INFO  L226             Difference]: Without dead ends: 360
[2021-10-28 22:50:38,737 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:38,757 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 360 states.
[2021-10-28 22:50:38,808 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360.
[2021-10-28 22:50:38,810 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:38,812 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions.
[2021-10-28 22:50:38,814 INFO  L78                 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 60
[2021-10-28 22:50:38,815 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:38,815 INFO  L470      AbstractCegarLoop]: Abstraction has 360 states and 588 transitions.
[2021-10-28 22:50:38,815 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:38,815 INFO  L276                IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions.
[2021-10-28 22:50:38,822 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2021-10-28 22:50:38,822 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:38,823 INFO  L513         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:38,823 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 22:50:38,823 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:38,824 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:38,824 INFO  L85        PathProgramCache]: Analyzing trace with hash -872801096, now seen corresponding path program 1 times
[2021-10-28 22:50:38,825 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:38,825 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015778762]
[2021-10-28 22:50:38,825 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:38,825 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:38,915 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:39,084 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:50:39,085 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:39,085 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015778762]
[2021-10-28 22:50:39,086 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015778762] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:39,086 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:39,086 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 22:50:39,086 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676998233]
[2021-10-28 22:50:39,088 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:39,089 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:39,090 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:39,090 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:39,091 INFO  L87              Difference]: Start difference. First operand 360 states and 588 transitions. Second operand  has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:40,257 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:40,257 INFO  L93              Difference]: Finished difference Result 1076 states and 1760 transitions.
[2021-10-28 22:50:40,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:40,258 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125
[2021-10-28 22:50:40,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:40,266 INFO  L225             Difference]: With dead ends: 1076
[2021-10-28 22:50:40,266 INFO  L226             Difference]: Without dead ends: 718
[2021-10-28 22:50:40,269 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:40,271 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 718 states.
[2021-10-28 22:50:40,321 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716.
[2021-10-28 22:50:40,323 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 716 states, 715 states have (on average 1.4223776223776223) internal successors, (1017), 715 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:40,327 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1017 transitions.
[2021-10-28 22:50:40,327 INFO  L78                 Accepts]: Start accepts. Automaton has 716 states and 1017 transitions. Word has length 125
[2021-10-28 22:50:40,328 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:40,328 INFO  L470      AbstractCegarLoop]: Abstraction has 716 states and 1017 transitions.
[2021-10-28 22:50:40,329 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:40,329 INFO  L276                IsEmpty]: Start isEmpty. Operand 716 states and 1017 transitions.
[2021-10-28 22:50:40,333 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2021-10-28 22:50:40,333 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:40,334 INFO  L513         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:40,334 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-28 22:50:40,334 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:40,335 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:40,335 INFO  L85        PathProgramCache]: Analyzing trace with hash 1726483601, now seen corresponding path program 1 times
[2021-10-28 22:50:40,336 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:40,336 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815392933]
[2021-10-28 22:50:40,336 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:40,337 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:40,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:40,517 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:50:40,518 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:40,518 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815392933]
[2021-10-28 22:50:40,518 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815392933] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:40,527 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:40,528 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 22:50:40,528 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444068714]
[2021-10-28 22:50:40,529 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:40,529 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:40,534 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:40,535 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:40,535 INFO  L87              Difference]: Start difference. First operand 716 states and 1017 transitions. Second operand  has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:41,479 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:41,479 INFO  L93              Difference]: Finished difference Result 1608 states and 2324 transitions.
[2021-10-28 22:50:41,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:41,480 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126
[2021-10-28 22:50:41,481 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:41,487 INFO  L225             Difference]: With dead ends: 1608
[2021-10-28 22:50:41,488 INFO  L226             Difference]: Without dead ends: 894
[2021-10-28 22:50:41,489 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:41,491 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 894 states.
[2021-10-28 22:50:41,520 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894.
[2021-10-28 22:50:41,522 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 894 states, 893 states have (on average 1.3314669652855544) internal successors, (1189), 893 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:41,527 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1189 transitions.
[2021-10-28 22:50:41,527 INFO  L78                 Accepts]: Start accepts. Automaton has 894 states and 1189 transitions. Word has length 126
[2021-10-28 22:50:41,528 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:41,528 INFO  L470      AbstractCegarLoop]: Abstraction has 894 states and 1189 transitions.
[2021-10-28 22:50:41,529 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:41,529 INFO  L276                IsEmpty]: Start isEmpty. Operand 894 states and 1189 transitions.
[2021-10-28 22:50:41,533 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2021-10-28 22:50:41,533 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:41,534 INFO  L513         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:41,534 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-28 22:50:41,535 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:41,535 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:41,536 INFO  L85        PathProgramCache]: Analyzing trace with hash -1746065234, now seen corresponding path program 1 times
[2021-10-28 22:50:41,536 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:41,536 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032028271]
[2021-10-28 22:50:41,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:41,537 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:41,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:41,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:50:41,741 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:41,741 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032028271]
[2021-10-28 22:50:41,747 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032028271] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:41,747 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:41,748 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 22:50:41,748 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246168452]
[2021-10-28 22:50:41,750 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 22:50:41,751 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:41,752 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 22:50:41,752 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 22:50:41,753 INFO  L87              Difference]: Start difference. First operand 894 states and 1189 transitions. Second operand  has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:43,037 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:43,037 INFO  L93              Difference]: Finished difference Result 2144 states and 2782 transitions.
[2021-10-28 22:50:43,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-28 22:50:43,038 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129
[2021-10-28 22:50:43,039 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:43,046 INFO  L225             Difference]: With dead ends: 2144
[2021-10-28 22:50:43,046 INFO  L226             Difference]: Without dead ends: 1252
[2021-10-28 22:50:43,048 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:50:43,050 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1252 states.
[2021-10-28 22:50:43,082 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250.
[2021-10-28 22:50:43,089 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1250 states, 1249 states have (on average 1.257005604483587) internal successors, (1570), 1249 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:43,095 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1570 transitions.
[2021-10-28 22:50:43,096 INFO  L78                 Accepts]: Start accepts. Automaton has 1250 states and 1570 transitions. Word has length 129
[2021-10-28 22:50:43,096 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:43,097 INFO  L470      AbstractCegarLoop]: Abstraction has 1250 states and 1570 transitions.
[2021-10-28 22:50:43,097 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:43,097 INFO  L276                IsEmpty]: Start isEmpty. Operand 1250 states and 1570 transitions.
[2021-10-28 22:50:43,100 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2021-10-28 22:50:43,100 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:43,100 INFO  L513         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1]
[2021-10-28 22:50:43,101 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-28 22:50:43,101 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:43,102 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:43,102 INFO  L85        PathProgramCache]: Analyzing trace with hash -929954738, now seen corresponding path program 1 times
[2021-10-28 22:50:43,102 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:43,103 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886598966]
[2021-10-28 22:50:43,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:43,103 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:43,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:43,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:50:43,240 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:43,240 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886598966]
[2021-10-28 22:50:43,241 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886598966] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:43,241 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:43,241 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 22:50:43,241 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149687210]
[2021-10-28 22:50:43,242 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 22:50:43,242 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:43,243 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 22:50:43,243 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-28 22:50:43,244 INFO  L87              Difference]: Start difference. First operand 1250 states and 1570 transitions. Second operand  has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:44,198 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:44,198 INFO  L93              Difference]: Finished difference Result 2885 states and 3573 transitions.
[2021-10-28 22:50:44,199 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-28 22:50:44,199 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140
[2021-10-28 22:50:44,200 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:44,210 INFO  L225             Difference]: With dead ends: 2885
[2021-10-28 22:50:44,210 INFO  L226             Difference]: Without dead ends: 1608
[2021-10-28 22:50:44,212 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-28 22:50:44,219 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1608 states.
[2021-10-28 22:50:44,261 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606.
[2021-10-28 22:50:44,265 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1606 states, 1605 states have (on average 1.1314641744548286) internal successors, (1816), 1605 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:44,273 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1816 transitions.
[2021-10-28 22:50:44,274 INFO  L78                 Accepts]: Start accepts. Automaton has 1606 states and 1816 transitions. Word has length 140
[2021-10-28 22:50:44,274 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:44,274 INFO  L470      AbstractCegarLoop]: Abstraction has 1606 states and 1816 transitions.
[2021-10-28 22:50:44,276 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:44,276 INFO  L276                IsEmpty]: Start isEmpty. Operand 1606 states and 1816 transitions.
[2021-10-28 22:50:44,280 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 235
[2021-10-28 22:50:44,280 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:44,281 INFO  L513         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:44,281 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-28 22:50:44,281 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:44,282 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:44,283 INFO  L85        PathProgramCache]: Analyzing trace with hash 1482397916, now seen corresponding path program 1 times
[2021-10-28 22:50:44,283 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:44,284 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806618007]
[2021-10-28 22:50:44,284 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:44,284 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:44,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:44,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:50:44,522 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:44,522 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806618007]
[2021-10-28 22:50:44,522 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806618007] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:44,522 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:44,523 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 22:50:44,526 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121485234]
[2021-10-28 22:50:44,527 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:44,528 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:44,528 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:44,529 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:44,529 INFO  L87              Difference]: Start difference. First operand 1606 states and 1816 transitions. Second operand  has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:45,370 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:45,370 INFO  L93              Difference]: Finished difference Result 3922 states and 4494 transitions.
[2021-10-28 22:50:45,371 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:45,371 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234
[2021-10-28 22:50:45,372 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:45,387 INFO  L225             Difference]: With dead ends: 3922
[2021-10-28 22:50:45,388 INFO  L226             Difference]: Without dead ends: 2318
[2021-10-28 22:50:45,391 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:45,395 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2318 states.
[2021-10-28 22:50:45,462 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318.
[2021-10-28 22:50:45,468 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2318 states, 2317 states have (on average 1.1130772550712127) internal successors, (2579), 2317 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:45,480 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2579 transitions.
[2021-10-28 22:50:45,480 INFO  L78                 Accepts]: Start accepts. Automaton has 2318 states and 2579 transitions. Word has length 234
[2021-10-28 22:50:45,481 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:45,481 INFO  L470      AbstractCegarLoop]: Abstraction has 2318 states and 2579 transitions.
[2021-10-28 22:50:45,482 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:45,482 INFO  L276                IsEmpty]: Start isEmpty. Operand 2318 states and 2579 transitions.
[2021-10-28 22:50:45,490 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 352
[2021-10-28 22:50:45,490 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:45,491 INFO  L513         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:45,491 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-28 22:50:45,491 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:45,492 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:45,492 INFO  L85        PathProgramCache]: Analyzing trace with hash -437824427, now seen corresponding path program 1 times
[2021-10-28 22:50:45,493 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:45,493 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617761095]
[2021-10-28 22:50:45,493 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:45,494 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:45,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:45,724 INFO  L134       CoverageAnalysis]: Checked inductivity of 436 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked.
[2021-10-28 22:50:45,724 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:45,725 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617761095]
[2021-10-28 22:50:45,725 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617761095] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:45,725 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:45,726 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 22:50:45,726 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78272561]
[2021-10-28 22:50:45,727 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 22:50:45,727 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:45,728 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 22:50:45,728 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-28 22:50:45,729 INFO  L87              Difference]: Start difference. First operand 2318 states and 2579 transitions. Second operand  has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:46,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:46,651 INFO  L93              Difference]: Finished difference Result 4692 states and 5238 transitions.
[2021-10-28 22:50:46,652 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-28 22:50:46,652 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 351
[2021-10-28 22:50:46,653 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:46,669 INFO  L225             Difference]: With dead ends: 4692
[2021-10-28 22:50:46,670 INFO  L226             Difference]: Without dead ends: 2496
[2021-10-28 22:50:46,673 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-28 22:50:46,678 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2496 states.
[2021-10-28 22:50:46,732 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318.
[2021-10-28 22:50:46,738 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2318 states, 2317 states have (on average 1.0738023305999136) internal successors, (2488), 2317 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:46,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2488 transitions.
[2021-10-28 22:50:46,749 INFO  L78                 Accepts]: Start accepts. Automaton has 2318 states and 2488 transitions. Word has length 351
[2021-10-28 22:50:46,750 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:46,750 INFO  L470      AbstractCegarLoop]: Abstraction has 2318 states and 2488 transitions.
[2021-10-28 22:50:46,751 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:46,751 INFO  L276                IsEmpty]: Start isEmpty. Operand 2318 states and 2488 transitions.
[2021-10-28 22:50:46,762 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 447
[2021-10-28 22:50:46,762 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:46,763 INFO  L513         BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:46,763 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-10-28 22:50:46,763 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:46,764 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:46,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -2137136836, now seen corresponding path program 1 times
[2021-10-28 22:50:46,764 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:46,766 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835440358]
[2021-10-28 22:50:46,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:46,767 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:46,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:47,046 INFO  L134       CoverageAnalysis]: Checked inductivity of 751 backedges. 437 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2021-10-28 22:50:47,047 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:47,047 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835440358]
[2021-10-28 22:50:47,047 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835440358] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:47,047 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:47,048 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 22:50:47,048 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400356456]
[2021-10-28 22:50:47,049 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:47,049 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:47,050 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:47,050 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:47,050 INFO  L87              Difference]: Start difference. First operand 2318 states and 2488 transitions. Second operand  has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:47,787 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:47,787 INFO  L93              Difference]: Finished difference Result 4812 states and 5232 transitions.
[2021-10-28 22:50:47,788 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:47,788 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 446
[2021-10-28 22:50:47,789 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:47,808 INFO  L225             Difference]: With dead ends: 4812
[2021-10-28 22:50:47,808 INFO  L226             Difference]: Without dead ends: 2674
[2021-10-28 22:50:47,812 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:47,816 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2674 states.
[2021-10-28 22:50:47,899 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140.
[2021-10-28 22:50:47,906 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2140 states, 2139 states have (on average 1.0733987844787283) internal successors, (2296), 2139 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:47,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2296 transitions.
[2021-10-28 22:50:47,916 INFO  L78                 Accepts]: Start accepts. Automaton has 2140 states and 2296 transitions. Word has length 446
[2021-10-28 22:50:47,919 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:47,919 INFO  L470      AbstractCegarLoop]: Abstraction has 2140 states and 2296 transitions.
[2021-10-28 22:50:47,919 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:47,920 INFO  L276                IsEmpty]: Start isEmpty. Operand 2140 states and 2296 transitions.
[2021-10-28 22:50:47,931 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 454
[2021-10-28 22:50:47,931 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:47,932 INFO  L513         BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:47,932 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-10-28 22:50:47,932 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:47,933 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:47,933 INFO  L85        PathProgramCache]: Analyzing trace with hash 775520055, now seen corresponding path program 1 times
[2021-10-28 22:50:47,934 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:47,934 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166552522]
[2021-10-28 22:50:47,934 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:47,934 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:48,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:48,179 INFO  L134       CoverageAnalysis]: Checked inductivity of 751 backedges. 437 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2021-10-28 22:50:48,180 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:48,180 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166552522]
[2021-10-28 22:50:48,180 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166552522] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:48,181 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:48,181 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 22:50:48,181 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400876989]
[2021-10-28 22:50:48,182 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:48,182 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:48,183 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:48,186 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:48,187 INFO  L87              Difference]: Start difference. First operand 2140 states and 2296 transitions. Second operand  has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:48,934 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:48,934 INFO  L93              Difference]: Finished difference Result 4812 states and 5234 transitions.
[2021-10-28 22:50:48,940 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:48,941 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 453
[2021-10-28 22:50:48,942 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:48,963 INFO  L225             Difference]: With dead ends: 4812
[2021-10-28 22:50:48,963 INFO  L226             Difference]: Without dead ends: 2852
[2021-10-28 22:50:48,967 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:48,971 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2852 states.
[2021-10-28 22:50:49,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496.
[2021-10-28 22:50:49,074 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2496 states, 2495 states have (on average 1.0841683366733468) internal successors, (2705), 2495 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:49,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2705 transitions.
[2021-10-28 22:50:49,085 INFO  L78                 Accepts]: Start accepts. Automaton has 2496 states and 2705 transitions. Word has length 453
[2021-10-28 22:50:49,086 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:49,087 INFO  L470      AbstractCegarLoop]: Abstraction has 2496 states and 2705 transitions.
[2021-10-28 22:50:49,087 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:49,087 INFO  L276                IsEmpty]: Start isEmpty. Operand 2496 states and 2705 transitions.
[2021-10-28 22:50:49,101 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 495
[2021-10-28 22:50:49,102 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:49,102 INFO  L513         BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:49,103 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-10-28 22:50:49,103 INFO  L402      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:49,103 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:49,104 INFO  L85        PathProgramCache]: Analyzing trace with hash -1335449478, now seen corresponding path program 1 times
[2021-10-28 22:50:49,104 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:49,106 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477391981]
[2021-10-28 22:50:49,106 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:49,107 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:49,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:49,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 865 backedges. 551 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2021-10-28 22:50:49,368 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:49,369 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477391981]
[2021-10-28 22:50:49,369 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477391981] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:49,369 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:49,369 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 22:50:49,370 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906938463]
[2021-10-28 22:50:49,371 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:49,371 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:49,372 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:49,372 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:49,373 INFO  L87              Difference]: Start difference. First operand 2496 states and 2705 transitions. Second operand  has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:50,116 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:50,117 INFO  L93              Difference]: Finished difference Result 5880 states and 6462 transitions.
[2021-10-28 22:50:50,117 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:50,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 494
[2021-10-28 22:50:50,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:50,142 INFO  L225             Difference]: With dead ends: 5880
[2021-10-28 22:50:50,142 INFO  L226             Difference]: Without dead ends: 3564
[2021-10-28 22:50:50,146 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:50,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3564 states.
[2021-10-28 22:50:50,270 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564.
[2021-10-28 22:50:50,278 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3564 states, 3563 states have (on average 1.079988773505473) internal successors, (3848), 3563 states have internal predecessors, (3848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:50,298 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3848 transitions.
[2021-10-28 22:50:50,299 INFO  L78                 Accepts]: Start accepts. Automaton has 3564 states and 3848 transitions. Word has length 494
[2021-10-28 22:50:50,300 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:50,300 INFO  L470      AbstractCegarLoop]: Abstraction has 3564 states and 3848 transitions.
[2021-10-28 22:50:50,301 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:50,301 INFO  L276                IsEmpty]: Start isEmpty. Operand 3564 states and 3848 transitions.
[2021-10-28 22:50:50,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 531
[2021-10-28 22:50:50,309 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:50,310 INFO  L513         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:50,311 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-10-28 22:50:50,311 INFO  L402      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:50,312 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:50,312 INFO  L85        PathProgramCache]: Analyzing trace with hash -1032417171, now seen corresponding path program 1 times
[2021-10-28 22:50:50,312 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:50,315 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7494642]
[2021-10-28 22:50:50,316 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:50,316 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:50,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:50,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 1108 backedges. 725 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked.
[2021-10-28 22:50:50,612 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:50,612 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7494642]
[2021-10-28 22:50:50,613 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7494642] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:50,613 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:50:50,613 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 22:50:50,614 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385715187]
[2021-10-28 22:50:50,615 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:50,615 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:50,623 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:50,623 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:50,623 INFO  L87              Difference]: Start difference. First operand 3564 states and 3848 transitions. Second operand  has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:51,331 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:51,331 INFO  L93              Difference]: Finished difference Result 7126 states and 7710 transitions.
[2021-10-28 22:50:51,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:51,332 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 530
[2021-10-28 22:50:51,334 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:51,356 INFO  L225             Difference]: With dead ends: 7126
[2021-10-28 22:50:51,357 INFO  L226             Difference]: Without dead ends: 3742
[2021-10-28 22:50:51,362 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 22:50:51,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3742 states.
[2021-10-28 22:50:51,439 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3208.
[2021-10-28 22:50:51,446 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3208 states, 3207 states have (on average 1.076083567196757) internal successors, (3451), 3207 states have internal predecessors, (3451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:51,466 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3451 transitions.
[2021-10-28 22:50:51,466 INFO  L78                 Accepts]: Start accepts. Automaton has 3208 states and 3451 transitions. Word has length 530
[2021-10-28 22:50:51,467 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:51,468 INFO  L470      AbstractCegarLoop]: Abstraction has 3208 states and 3451 transitions.
[2021-10-28 22:50:51,468 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:51,468 INFO  L276                IsEmpty]: Start isEmpty. Operand 3208 states and 3451 transitions.
[2021-10-28 22:50:51,475 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 650
[2021-10-28 22:50:51,475 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:51,476 INFO  L513         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:51,476 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2021-10-28 22:50:51,476 INFO  L402      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:51,477 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:51,477 INFO  L85        PathProgramCache]: Analyzing trace with hash 2110819521, now seen corresponding path program 1 times
[2021-10-28 22:50:51,478 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:51,478 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053126149]
[2021-10-28 22:50:51,478 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:51,479 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:51,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:51,806 INFO  L134       CoverageAnalysis]: Checked inductivity of 1356 backedges. 932 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked.
[2021-10-28 22:50:51,806 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:51,807 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053126149]
[2021-10-28 22:50:51,807 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053126149] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 22:50:51,807 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119251673]
[2021-10-28 22:50:51,808 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:51,808 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 22:50:51,808 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:50:51,812 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 22:50:51,843 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-10-28 22:50:52,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:52,090 INFO  L263         TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:50:52,136 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:50:54,157 INFO  L134       CoverageAnalysis]: Checked inductivity of 1356 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked.
[2021-10-28 22:50:54,157 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119251673] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:54,158 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-10-28 22:50:54,158 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2021-10-28 22:50:54,159 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450038827]
[2021-10-28 22:50:54,160 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:54,161 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:54,161 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:54,162 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:50:54,162 INFO  L87              Difference]: Start difference. First operand 3208 states and 3451 transitions. Second operand  has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:54,921 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:54,922 INFO  L93              Difference]: Finished difference Result 7126 states and 7713 transitions.
[2021-10-28 22:50:54,922 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:54,923 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 649
[2021-10-28 22:50:54,925 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:54,949 INFO  L225             Difference]: With dead ends: 7126
[2021-10-28 22:50:54,950 INFO  L226             Difference]: Without dead ends: 4098
[2021-10-28 22:50:54,955 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:50:54,961 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4098 states.
[2021-10-28 22:50:55,041 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098.
[2021-10-28 22:50:55,051 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4098 states, 4097 states have (on average 1.069319013912619) internal successors, (4381), 4097 states have internal predecessors, (4381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:55,060 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4381 transitions.
[2021-10-28 22:50:55,060 INFO  L78                 Accepts]: Start accepts. Automaton has 4098 states and 4381 transitions. Word has length 649
[2021-10-28 22:50:55,061 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:55,062 INFO  L470      AbstractCegarLoop]: Abstraction has 4098 states and 4381 transitions.
[2021-10-28 22:50:55,062 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:55,062 INFO  L276                IsEmpty]: Start isEmpty. Operand 4098 states and 4381 transitions.
[2021-10-28 22:50:55,073 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 797
[2021-10-28 22:50:55,074 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:55,074 INFO  L513         BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:55,123 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-10-28 22:50:55,302 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2021-10-28 22:50:55,303 INFO  L402      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:55,303 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:55,304 INFO  L85        PathProgramCache]: Analyzing trace with hash 544446574, now seen corresponding path program 1 times
[2021-10-28 22:50:55,304 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:55,304 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14449051]
[2021-10-28 22:50:55,304 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:55,305 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:55,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:55,745 INFO  L134       CoverageAnalysis]: Checked inductivity of 1871 backedges. 1344 proven. 155 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked.
[2021-10-28 22:50:55,745 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:55,745 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14449051]
[2021-10-28 22:50:55,745 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14449051] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 22:50:55,746 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954621327]
[2021-10-28 22:50:55,746 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:55,746 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 22:50:55,747 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:50:55,748 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 22:50:55,773 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-10-28 22:50:56,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:56,360 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:50:56,373 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:50:58,411 INFO  L134       CoverageAnalysis]: Checked inductivity of 1871 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked.
[2021-10-28 22:50:58,411 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [954621327] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:50:58,412 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-10-28 22:50:58,412 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2021-10-28 22:50:58,412 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83069971]
[2021-10-28 22:50:58,414 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:50:58,414 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:50:58,415 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:50:58,415 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:50:58,416 INFO  L87              Difference]: Start difference. First operand 4098 states and 4381 transitions. Second operand  has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:59,152 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:50:59,152 INFO  L93              Difference]: Finished difference Result 4812 states and 5138 transitions.
[2021-10-28 22:50:59,153 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:50:59,153 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 796
[2021-10-28 22:50:59,156 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:50:59,195 INFO  L225             Difference]: With dead ends: 4812
[2021-10-28 22:50:59,195 INFO  L226             Difference]: Without dead ends: 4810
[2021-10-28 22:50:59,197 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 796 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:50:59,217 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4810 states.
[2021-10-28 22:50:59,297 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4098.
[2021-10-28 22:50:59,317 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4098 states, 4097 states have (on average 1.0690749328777154) internal successors, (4380), 4097 states have internal predecessors, (4380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:59,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4380 transitions.
[2021-10-28 22:50:59,338 INFO  L78                 Accepts]: Start accepts. Automaton has 4098 states and 4380 transitions. Word has length 796
[2021-10-28 22:50:59,340 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:50:59,340 INFO  L470      AbstractCegarLoop]: Abstraction has 4098 states and 4380 transitions.
[2021-10-28 22:50:59,341 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:50:59,342 INFO  L276                IsEmpty]: Start isEmpty. Operand 4098 states and 4380 transitions.
[2021-10-28 22:50:59,358 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 803
[2021-10-28 22:50:59,359 INFO  L505         BasicCegarLoop]: Found error trace
[2021-10-28 22:50:59,360 INFO  L513         BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:50:59,443 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-10-28 22:50:59,579 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2021-10-28 22:50:59,580 INFO  L402      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 22:50:59,581 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:50:59,581 INFO  L85        PathProgramCache]: Analyzing trace with hash 1124248575, now seen corresponding path program 1 times
[2021-10-28 22:50:59,581 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:50:59,581 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8478521]
[2021-10-28 22:50:59,582 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:59,582 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:50:59,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:50:59,983 INFO  L134       CoverageAnalysis]: Checked inductivity of 1901 backedges. 1374 proven. 155 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked.
[2021-10-28 22:50:59,984 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:50:59,984 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8478521]
[2021-10-28 22:50:59,984 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8478521] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 22:50:59,984 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015535240]
[2021-10-28 22:50:59,985 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:50:59,985 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 22:50:59,985 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:50:59,986 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 22:51:00,012 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-10-28 22:51:00,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:51:00,891 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:51:00,902 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:51:02,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 1901 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked.
[2021-10-28 22:51:02,926 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015535240] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:51:02,926 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-10-28 22:51:02,926 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2021-10-28 22:51:02,927 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855376235]
[2021-10-28 22:51:02,928 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 22:51:02,928 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:51:02,929 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 22:51:02,929 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:51:02,929 INFO  L87              Difference]: Start difference. First operand 4098 states and 4380 transitions. Second operand  has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:51:03,706 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:51:03,707 INFO  L93              Difference]: Finished difference Result 8904 states and 9617 transitions.
[2021-10-28 22:51:03,707 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-28 22:51:03,708 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 802
[2021-10-28 22:51:03,710 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 22:51:03,711 INFO  L225             Difference]: With dead ends: 8904
[2021-10-28 22:51:03,711 INFO  L226             Difference]: Without dead ends: 0
[2021-10-28 22:51:03,721 INFO  L786         BasicCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:51:03,722 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-28 22:51:03,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-28 22:51:03,722 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:51:03,723 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-28 22:51:03,723 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 802
[2021-10-28 22:51:03,723 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-28 22:51:03,724 INFO  L470      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 22:51:03,724 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:51:03,724 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-28 22:51:03,724 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-28 22:51:03,728 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 22:51:03,783 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-10-28 22:51:03,942 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 22:51:03,944 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-10-28 22:51:03,950 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 22:51:04,030 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 22:51:04,032 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 22:51:04,336 INFO  L857   garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,337 INFO  L857   garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed.
[2021-10-28 22:51:04,337 INFO  L857   garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,337 INFO  L857   garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,337 INFO  L857   garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,337 INFO  L857   garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,337 INFO  L857   garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,338 INFO  L857   garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,338 INFO  L857   garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,338 INFO  L857   garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,338 INFO  L857   garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed.
[2021-10-28 22:51:04,338 INFO  L857   garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed.
[2021-10-28 22:51:04,338 INFO  L857   garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed.
[2021-10-28 22:51:04,338 INFO  L857   garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,338 INFO  L857   garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,339 INFO  L857   garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,339 INFO  L857   garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,339 INFO  L857   garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,339 INFO  L857   garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,339 INFO  L857   garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,339 INFO  L857   garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed.
[2021-10-28 22:51:04,339 INFO  L857   garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed.
[2021-10-28 22:51:04,340 INFO  L857   garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed.
[2021-10-28 22:51:04,340 INFO  L857   garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,340 INFO  L857   garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,340 INFO  L857   garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,340 INFO  L857   garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,340 INFO  L857   garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,340 INFO  L857   garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,340 INFO  L857   garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,341 INFO  L857   garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,341 INFO  L857   garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,341 INFO  L857   garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed.
[2021-10-28 22:51:04,341 INFO  L857   garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed.
[2021-10-28 22:51:04,341 INFO  L857   garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed.
[2021-10-28 22:51:04,341 INFO  L857   garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,341 INFO  L857   garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,341 INFO  L857   garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,342 INFO  L857   garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,342 INFO  L857   garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,342 INFO  L857   garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,342 INFO  L857   garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,342 INFO  L857   garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed.
[2021-10-28 22:51:04,342 INFO  L857   garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed.
[2021-10-28 22:51:04,342 INFO  L857   garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed.
[2021-10-28 22:51:04,343 INFO  L857   garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,343 INFO  L857   garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,343 INFO  L857   garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,343 INFO  L857   garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,343 INFO  L857   garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,343 INFO  L857   garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,343 INFO  L857   garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,343 INFO  L857   garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,344 INFO  L857   garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,344 INFO  L857   garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed.
[2021-10-28 22:51:04,344 INFO  L857   garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed.
[2021-10-28 22:51:04,344 INFO  L857   garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed.
[2021-10-28 22:51:04,344 INFO  L857   garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,344 INFO  L857   garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,344 INFO  L857   garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,345 INFO  L857   garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,345 INFO  L857   garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,345 INFO  L857   garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,345 INFO  L857   garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,345 INFO  L857   garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed.
[2021-10-28 22:51:04,345 INFO  L857   garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed.
[2021-10-28 22:51:04,345 INFO  L857   garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed.
[2021-10-28 22:51:04,345 INFO  L857   garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,346 INFO  L857   garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,346 INFO  L857   garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,349 INFO  L857   garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,349 INFO  L857   garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,350 INFO  L857   garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,350 INFO  L857   garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,350 INFO  L857   garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,350 INFO  L857   garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,350 INFO  L857   garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed.
[2021-10-28 22:51:04,351 INFO  L857   garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed.
[2021-10-28 22:51:04,351 INFO  L857   garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed.
[2021-10-28 22:51:04,351 INFO  L857   garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,351 INFO  L857   garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,351 INFO  L857   garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,352 INFO  L857   garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-10-28 22:51:04,352 INFO  L857   garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,352 INFO  L857   garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,352 INFO  L857   garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,352 INFO  L857   garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,353 INFO  L857   garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed.
[2021-10-28 22:51:04,353 INFO  L857   garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed.
[2021-10-28 22:51:04,353 INFO  L857   garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed.
[2021-10-28 22:51:04,353 INFO  L857   garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,354 INFO  L857   garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,354 INFO  L857   garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,354 INFO  L857   garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,354 INFO  L857   garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,354 INFO  L857   garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,355 INFO  L857   garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,355 INFO  L857   garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,355 INFO  L857   garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,355 INFO  L857   garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed.
[2021-10-28 22:51:04,355 INFO  L857   garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed.
[2021-10-28 22:51:04,356 INFO  L857   garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed.
[2021-10-28 22:51:04,356 INFO  L857   garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,356 INFO  L857   garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,356 INFO  L857   garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,356 INFO  L857   garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,357 INFO  L857   garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,357 INFO  L857   garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,357 INFO  L857   garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,357 INFO  L857   garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed.
[2021-10-28 22:51:04,357 INFO  L857   garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed.
[2021-10-28 22:51:04,358 INFO  L857   garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed.
[2021-10-28 22:51:04,358 INFO  L857   garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-10-28 22:51:04,358 INFO  L857   garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,358 INFO  L857   garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 194) no Hoare annotation was computed.
[2021-10-28 22:51:04,359 INFO  L857   garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,359 INFO  L857   garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,359 INFO  L857   garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,359 INFO  L857   garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,360 INFO  L857   garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,360 INFO  L857   garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,360 INFO  L857   garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,360 INFO  L857   garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,360 INFO  L857   garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,361 INFO  L857   garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed.
[2021-10-28 22:51:04,361 INFO  L857   garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed.
[2021-10-28 22:51:04,361 INFO  L857   garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed.
[2021-10-28 22:51:04,361 INFO  L857   garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,362 INFO  L857   garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,362 INFO  L857   garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,362 INFO  L857   garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,362 INFO  L857   garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,362 INFO  L857   garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,363 INFO  L857   garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed.
[2021-10-28 22:51:04,363 INFO  L857   garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed.
[2021-10-28 22:51:04,363 INFO  L857   garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed.
[2021-10-28 22:51:04,363 INFO  L857   garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,363 INFO  L857   garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,364 INFO  L857   garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,364 INFO  L857   garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,364 INFO  L857   garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,364 INFO  L857   garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,364 INFO  L857   garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,365 INFO  L857   garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,365 INFO  L857   garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,365 INFO  L857   garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,365 INFO  L857   garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed.
[2021-10-28 22:51:04,365 INFO  L857   garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed.
[2021-10-28 22:51:04,366 INFO  L857   garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed.
[2021-10-28 22:51:04,366 INFO  L857   garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,366 INFO  L857   garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,366 INFO  L857   garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,366 INFO  L857   garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,367 INFO  L857   garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,367 INFO  L857   garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,367 INFO  L857   garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,367 INFO  L857   garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed.
[2021-10-28 22:51:04,367 INFO  L857   garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed.
[2021-10-28 22:51:04,368 INFO  L857   garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed.
[2021-10-28 22:51:04,368 INFO  L857   garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,368 INFO  L857   garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,368 INFO  L857   garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,368 INFO  L857   garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,369 INFO  L857   garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,369 INFO  L857   garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,369 INFO  L857   garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,369 INFO  L857   garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,369 INFO  L857   garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed.
[2021-10-28 22:51:04,370 INFO  L857   garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed.
[2021-10-28 22:51:04,370 INFO  L857   garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed.
[2021-10-28 22:51:04,370 INFO  L857   garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,370 INFO  L857   garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,370 INFO  L857   garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,371 INFO  L857   garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,371 INFO  L857   garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,371 INFO  L857   garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,371 INFO  L857   garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,371 INFO  L857   garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed.
[2021-10-28 22:51:04,372 INFO  L857   garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed.
[2021-10-28 22:51:04,372 INFO  L857   garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,372 INFO  L857   garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,372 INFO  L857   garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,372 INFO  L857   garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,373 INFO  L857   garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,373 INFO  L857   garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,373 INFO  L857   garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,373 INFO  L857   garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,373 INFO  L857   garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-10-28 22:51:04,374 INFO  L857   garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed.
[2021-10-28 22:51:04,374 INFO  L857   garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed.
[2021-10-28 22:51:04,374 INFO  L857   garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,374 INFO  L857   garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,375 INFO  L857   garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,375 INFO  L857   garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,375 INFO  L857   garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,375 INFO  L853   garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 6))) (or (and (<= 7 ~a15~0) .cse0) (and (<= 9 ~a21~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))) (and .cse0 .cse1) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0))))
[2021-10-28 22:51:04,376 INFO  L857   garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,376 INFO  L857   garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,376 INFO  L857   garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed.
[2021-10-28 22:51:04,376 INFO  L857   garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed.
[2021-10-28 22:51:04,377 INFO  L857   garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,377 INFO  L857   garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,377 INFO  L857   garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,377 INFO  L857   garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,377 INFO  L857   garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,378 INFO  L857   garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,378 INFO  L860   garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true
[2021-10-28 22:51:04,378 INFO  L857   garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,378 INFO  L857   garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,378 INFO  L857   garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed.
[2021-10-28 22:51:04,379 INFO  L857   garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed.
[2021-10-28 22:51:04,379 INFO  L857   garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,379 INFO  L857   garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,379 INFO  L857   garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,379 INFO  L857   garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,380 INFO  L857   garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,380 INFO  L857   garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-10-28 22:51:04,380 INFO  L857   garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,380 INFO  L857   garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,380 INFO  L857   garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed.
[2021-10-28 22:51:04,381 INFO  L857   garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed.
[2021-10-28 22:51:04,381 INFO  L857   garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,381 INFO  L857   garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,381 INFO  L857   garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,381 INFO  L857   garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,382 INFO  L857   garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed.
[2021-10-28 22:51:04,382 INFO  L857   garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,382 INFO  L857   garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,382 INFO  L853   garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 6))) (or (and (<= 7 ~a15~0) .cse0) (and (<= 9 ~a21~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))) (and .cse0 .cse1) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0))))
[2021-10-28 22:51:04,383 INFO  L857   garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,383 INFO  L857   garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,383 INFO  L857   garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed.
[2021-10-28 22:51:04,383 INFO  L857   garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed.
[2021-10-28 22:51:04,383 INFO  L857   garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed.
[2021-10-28 22:51:04,384 INFO  L857   garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,384 INFO  L857   garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,384 INFO  L857   garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,384 INFO  L857   garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,384 INFO  L857   garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,385 INFO  L857   garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,385 INFO  L857   garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed.
[2021-10-28 22:51:04,385 INFO  L857   garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed.
[2021-10-28 22:51:04,385 INFO  L857   garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed.
[2021-10-28 22:51:04,385 INFO  L857   garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed.
[2021-10-28 22:51:04,386 INFO  L857   garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed.
[2021-10-28 22:51:04,389 INFO  L731         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 22:51:04,391 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 22:51:04,417 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:51:04 BoogieIcfgContainer
[2021-10-28 22:51:04,417 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 22:51:04,418 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 22:51:04,418 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-28 22:51:04,419 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-28 22:51:04,420 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:36" (3/4) ...
[2021-10-28 22:51:04,424 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2021-10-28 22:51:04,467 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges
[2021-10-28 22:51:04,469 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-10-28 22:51:04,471 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 22:51:04,473 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 22:51:04,659 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 22:51:04,660 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 22:51:04,662 INFO  L168              Benchmark]: Toolchain (without parser) took 30765.98 ms. Allocated memory was 90.2 MB in the beginning and 299.9 MB in the end (delta: 209.7 MB). Free memory was 51.5 MB in the beginning and 145.7 MB in the end (delta: -94.3 MB). Peak memory consumption was 114.9 MB. Max. memory is 16.1 GB.
[2021-10-28 22:51:04,662 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory is still 69.6 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 22:51:04,663 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 914.82 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 51.3 MB in the beginning and 68.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 22:51:04,663 INFO  L168              Benchmark]: Boogie Procedure Inliner took 121.13 ms. Allocated memory is still 117.4 MB. Free memory was 68.2 MB in the beginning and 58.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 22:51:04,664 INFO  L168              Benchmark]: Boogie Preprocessor took 111.19 ms. Allocated memory is still 117.4 MB. Free memory was 58.8 MB in the beginning and 52.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 22:51:04,664 INFO  L168              Benchmark]: RCFGBuilder took 1902.56 ms. Allocated memory is still 117.4 MB. Free memory was 52.9 MB in the beginning and 66.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB.
[2021-10-28 22:51:04,665 INFO  L168              Benchmark]: TraceAbstraction took 27455.47 ms. Allocated memory was 117.4 MB in the beginning and 299.9 MB in the end (delta: 182.5 MB). Free memory was 65.3 MB in the beginning and 164.6 MB in the end (delta: -99.3 MB). Peak memory consumption was 82.4 MB. Max. memory is 16.1 GB.
[2021-10-28 22:51:04,665 INFO  L168              Benchmark]: Witness Printer took 242.05 ms. Allocated memory is still 299.9 MB. Free memory was 164.6 MB in the beginning and 145.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB.
[2021-10-28 22:51:04,668 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory is still 69.6 MB. There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 914.82 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 51.3 MB in the beginning and 68.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 121.13 ms. Allocated memory is still 117.4 MB. Free memory was 68.2 MB in the beginning and 58.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 111.19 ms. Allocated memory is still 117.4 MB. Free memory was 58.8 MB in the beginning and 52.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 1902.56 ms. Allocated memory is still 117.4 MB. Free memory was 52.9 MB in the beginning and 66.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 27455.47 ms. Allocated memory was 117.4 MB in the beginning and 299.9 MB in the end (delta: 182.5 MB). Free memory was 65.3 MB in the beginning and 164.6 MB in the end (delta: -99.3 MB). Peak memory consumption was 82.4 MB. Max. memory is 16.1 GB.
 * Witness Printer took 242.05 ms. Allocated memory is still 299.9 MB. Free memory was 164.6 MB in the beginning and 145.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 194]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.3s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1720 SDtfs, 1978 SDslu, 77 SDs, 0 SdLazy, 7242 SolverSat, 963 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2287 GetRequests, 2263 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4098occurred in iteration=12, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 2320 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 87 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1718 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 488 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 7582 NumberOfCodeBlocks, 7582 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7565 ConstructedInterpolants, 0 QuantifiedInterpolants, 15908 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2840 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 14158/14578 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 30]: Loop Invariant
    Derived loop invariant: ((((7 <= a15 && a24 == 1) || (9 <= a21 && a24 == 1)) || (a24 == 1 && 0 < a12 + 43)) || (a24 == 1 && a21 <= 6)) || ((a15 <= 8 && a21 <= 6) && 49 + a12 <= 0)
  - InvariantResult [Line: 884]: Loop Invariant
    Derived loop invariant: 1
  - InvariantResult [Line: 890]: Loop Invariant
    Derived loop invariant: ((((7 <= a15 && a24 == 1) || (9 <= a21 && a24 == 1)) || (a24 == 1 && 0 < a12 + 43)) || (a24 == 1 && a21 <= 6)) || ((a15 <= 8 && a21 <= 6) && 49 + a12 <= 0)
RESULT: Ultimate proved your program to be correct!
[2021-10-28 22:51:04,697 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6357c01f-daa0-443b-ba1e-979b1cac604e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...