./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label41.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 7b2dab56
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label41.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC --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 b174e1814bd9b57d51be1f924645d02065497326
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.0-7b2dab5
[2021-10-11 00:22:29,976 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-11 00:22:29,988 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-11 00:22:30,052 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-11 00:22:30,055 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-11 00:22:30,061 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-11 00:22:30,065 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-11 00:22:30,070 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-11 00:22:30,073 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-11 00:22:30,080 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-11 00:22:30,082 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-11 00:22:30,084 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-11 00:22:30,084 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-11 00:22:30,088 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-11 00:22:30,089 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-11 00:22:30,092 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-11 00:22:30,094 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-11 00:22:30,096 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-11 00:22:30,102 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-11 00:22:30,112 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-11 00:22:30,114 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-11 00:22:30,116 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-11 00:22:30,119 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-11 00:22:30,120 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-11 00:22:30,124 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-11 00:22:30,125 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-11 00:22:30,125 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-11 00:22:30,128 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-11 00:22:30,129 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-11 00:22:30,130 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-11 00:22:30,131 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-11 00:22:30,132 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-11 00:22:30,134 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-11 00:22:30,135 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-11 00:22:30,137 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-11 00:22:30,137 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-11 00:22:30,138 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-11 00:22:30,138 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-11 00:22:30,139 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-11 00:22:30,140 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-11 00:22:30,141 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-11 00:22:30,144 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-11 00:22:30,188 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-11 00:22:30,194 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-11 00:22:30,197 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-11 00:22:30,197 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-11 00:22:30,197 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-11 00:22:30,198 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-11 00:22:30,198 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-11 00:22:30,198 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-11 00:22:30,199 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-11 00:22:30,199 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-11 00:22:30,200 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-11 00:22:30,200 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-11 00:22:30,201 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-11 00:22:30,201 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-11 00:22:30,201 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-11 00:22:30,201 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-11 00:22:30,202 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-11 00:22:30,202 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-11 00:22:30,202 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-11 00:22:30,202 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-11 00:22:30,203 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:22:30,203 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-11 00:22:30,203 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-11 00:22:30,203 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-11 00:22:30,204 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-11 00:22:30,204 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-11 00:22:30,204 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-11 00:22:30,204 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-11 00:22:30,205 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_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/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_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC
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 -> b174e1814bd9b57d51be1f924645d02065497326
[2021-10-11 00:22:30,467 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-11 00:22:30,505 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-11 00:22:30,510 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-11 00:22:30,512 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-11 00:22:30,513 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-11 00:22:30,514 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/eca-rers2012/Problem01_label41.c
[2021-10-11 00:22:30,578 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/data/65390fd3b/5a96a567fa484dd1bb075ce1770f2dc4/FLAG20ae45181
[2021-10-11 00:22:31,140 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-11 00:22:31,141 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/sv-benchmarks/c/eca-rers2012/Problem01_label41.c
[2021-10-11 00:22:31,164 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/data/65390fd3b/5a96a567fa484dd1bb075ce1770f2dc4/FLAG20ae45181
[2021-10-11 00:22:31,409 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/data/65390fd3b/5a96a567fa484dd1bb075ce1770f2dc4
[2021-10-11 00:22:31,411 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-11 00:22:31,413 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-11 00:22:31,415 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-11 00:22:31,415 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-11 00:22:31,418 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-11 00:22:31,419 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:31" (1/1) ...
[2021-10-11 00:22:31,421 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32314d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:31, skipping insertion in model container
[2021-10-11 00:22:31,421 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:31" (1/1) ...
[2021-10-11 00:22:31,429 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-11 00:22:31,479 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-11 00:22:31,806 WARN  L226   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_92589d61-1ce6-4b96-88b5-fc687d65a6ee/sv-benchmarks/c/eca-rers2012/Problem01_label41.c[16127,16140]
[2021-10-11 00:22:31,890 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:22:31,900 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-11 00:22:32,008 WARN  L226   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_92589d61-1ce6-4b96-88b5-fc687d65a6ee/sv-benchmarks/c/eca-rers2012/Problem01_label41.c[16127,16140]
[2021-10-11 00:22:32,027 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:22:32,044 INFO  L208         MainTranslator]: Completed translation
[2021-10-11 00:22:32,044 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32 WrapperNode
[2021-10-11 00:22:32,044 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-11 00:22:32,046 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-11 00:22:32,046 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-11 00:22:32,046 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-11 00:22:32,055 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
[2021-10-11 00:22:32,075 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
[2021-10-11 00:22:32,140 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-11 00:22:32,141 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-11 00:22:32,142 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-11 00:22:32,142 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-11 00:22:32,151 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
[2021-10-11 00:22:32,151 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
[2021-10-11 00:22:32,157 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
[2021-10-11 00:22:32,157 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
[2021-10-11 00:22:32,181 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
[2021-10-11 00:22:32,191 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
[2021-10-11 00:22:32,199 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
[2021-10-11 00:22:32,209 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-11 00:22:32,210 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-11 00:22:32,210 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-11 00:22:32,210 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-11 00:22:32,211 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (1/1) ...
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:22:32,340 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-11 00:22:32,340 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-11 00:22:32,342 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-11 00:22:32,343 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-11 00:22:33,608 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-11 00:22:33,609 INFO  L299             CfgBuilder]: Removed 7 assume(true) statements.
[2021-10-11 00:22:33,612 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:33 BoogieIcfgContainer
[2021-10-11 00:22:33,613 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-11 00:22:33,616 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-11 00:22:33,617 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-11 00:22:33,620 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-11 00:22:33,621 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:22:31" (1/3) ...
[2021-10-11 00:22:33,622 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3793f760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:33, skipping insertion in model container
[2021-10-11 00:22:33,622 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:32" (2/3) ...
[2021-10-11 00:22:33,622 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3793f760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:33, skipping insertion in model container
[2021-10-11 00:22:33,623 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:33" (3/3) ...
[2021-10-11 00:22:33,625 INFO  L111   eAbstractionObserver]: Analyzing ICFG Problem01_label41.c
[2021-10-11 00:22:33,639 INFO  L180   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-11 00:22:33,649 INFO  L192   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-10-11 00:22:33,660 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-11 00:22:33,702 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2021-10-11 00:22:33,702 INFO  L378      AbstractCegarLoop]: Hoare is true
[2021-10-11 00:22:33,702 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-10-11 00:22:33,702 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-11 00:22:33,702 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-11 00:22:33,703 INFO  L382      AbstractCegarLoop]: Difference is false
[2021-10-11 00:22:33,703 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-11 00:22:33,703 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-10-11 00:22:33,727 INFO  L276                IsEmpty]: Start isEmpty. Operand 198 states.
[2021-10-11 00:22:33,743 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2021-10-11 00:22:33,743 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:33,744 INFO  L422         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, 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]
[2021-10-11 00:22:33,745 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:33,757 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:33,758 INFO  L82        PathProgramCache]: Analyzing trace with hash 867355110, now seen corresponding path program 1 times
[2021-10-11 00:22:33,768 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:33,769 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132373602]
[2021-10-11 00:22:33,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:33,990 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:34,197 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:22:34,198 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132373602]
[2021-10-11 00:22:34,199 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:22:34,200 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-11 00:22:34,200 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520301033]
[2021-10-11 00:22:34,206 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:34,207 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:34,221 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:34,222 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:22:34,224 INFO  L87              Difference]: Start difference. First operand 198 states. Second operand 3 states.
[2021-10-11 00:22:35,177 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:35,177 INFO  L93              Difference]: Finished difference Result 528 states and 915 transitions.
[2021-10-11 00:22:35,178 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:35,179 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 85
[2021-10-11 00:22:35,180 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:35,193 INFO  L225             Difference]: With dead ends: 528
[2021-10-11 00:22:35,194 INFO  L226             Difference]: Without dead ends: 266
[2021-10-11 00:22:35,198 INFO  L677         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
[2021-10-11 00:22:35,221 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2021-10-11 00:22:35,279 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266.
[2021-10-11 00:22:35,280 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 266 states.
[2021-10-11 00:22:35,282 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions.
[2021-10-11 00:22:35,283 INFO  L78                 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 85
[2021-10-11 00:22:35,283 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:35,283 INFO  L481      AbstractCegarLoop]: Abstraction has 266 states and 380 transitions.
[2021-10-11 00:22:35,284 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:35,284 INFO  L276                IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions.
[2021-10-11 00:22:35,288 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2021-10-11 00:22:35,288 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:35,288 INFO  L422         BasicCegarLoop]: trace histogram [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, 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]
[2021-10-11 00:22:35,289 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-11 00:22:35,289 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:35,289 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:35,290 INFO  L82        PathProgramCache]: Analyzing trace with hash -1655802317, now seen corresponding path program 1 times
[2021-10-11 00:22:35,290 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:35,290 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640314127]
[2021-10-11 00:22:35,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:35,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:35,380 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:22:35,381 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640314127]
[2021-10-11 00:22:35,381 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:22:35,381 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-11 00:22:35,381 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333122521]
[2021-10-11 00:22:35,383 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:35,383 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:35,384 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:35,384 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:22:35,384 INFO  L87              Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states.
[2021-10-11 00:22:36,024 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:36,025 INFO  L93              Difference]: Finished difference Result 792 states and 1135 transitions.
[2021-10-11 00:22:36,026 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:36,027 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 91
[2021-10-11 00:22:36,027 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:36,032 INFO  L225             Difference]: With dead ends: 792
[2021-10-11 00:22:36,033 INFO  L226             Difference]: Without dead ends: 528
[2021-10-11 00:22:36,035 INFO  L677         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
[2021-10-11 00:22:36,036 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 528 states.
[2021-10-11 00:22:36,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528.
[2021-10-11 00:22:36,061 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 528 states.
[2021-10-11 00:22:36,064 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions.
[2021-10-11 00:22:36,064 INFO  L78                 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 91
[2021-10-11 00:22:36,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:36,065 INFO  L481      AbstractCegarLoop]: Abstraction has 528 states and 708 transitions.
[2021-10-11 00:22:36,065 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:36,065 INFO  L276                IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions.
[2021-10-11 00:22:36,070 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2021-10-11 00:22:36,070 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:36,070 INFO  L422         BasicCegarLoop]: trace histogram [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, 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, 1, 1]
[2021-10-11 00:22:36,070 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-11 00:22:36,071 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:36,071 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:36,071 INFO  L82        PathProgramCache]: Analyzing trace with hash 1915873080, now seen corresponding path program 1 times
[2021-10-11 00:22:36,072 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:36,072 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564472734]
[2021-10-11 00:22:36,072 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:36,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:36,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:22:36,256 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564472734]
[2021-10-11 00:22:36,257 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:22:36,257 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-11 00:22:36,257 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060762860]
[2021-10-11 00:22:36,258 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-10-11 00:22:36,258 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:36,259 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-11 00:22:36,259 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-11 00:22:36,259 INFO  L87              Difference]: Start difference. First operand 528 states and 708 transitions. Second operand 4 states.
[2021-10-11 00:22:37,174 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:37,175 INFO  L93              Difference]: Finished difference Result 1316 states and 1742 transitions.
[2021-10-11 00:22:37,175 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-11 00:22:37,176 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 119
[2021-10-11 00:22:37,176 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:37,181 INFO  L225             Difference]: With dead ends: 1316
[2021-10-11 00:22:37,182 INFO  L226             Difference]: Without dead ends: 790
[2021-10-11 00:22:37,183 INFO  L677         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
[2021-10-11 00:22:37,185 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 790 states.
[2021-10-11 00:22:37,210 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790.
[2021-10-11 00:22:37,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 790 states.
[2021-10-11 00:22:37,214 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1000 transitions.
[2021-10-11 00:22:37,214 INFO  L78                 Accepts]: Start accepts. Automaton has 790 states and 1000 transitions. Word has length 119
[2021-10-11 00:22:37,215 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:37,215 INFO  L481      AbstractCegarLoop]: Abstraction has 790 states and 1000 transitions.
[2021-10-11 00:22:37,215 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2021-10-11 00:22:37,215 INFO  L276                IsEmpty]: Start isEmpty. Operand 790 states and 1000 transitions.
[2021-10-11 00:22:37,222 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2021-10-11 00:22:37,222 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:37,223 INFO  L422         BasicCegarLoop]: trace histogram [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, 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, 1, 1]
[2021-10-11 00:22:37,223 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-11 00:22:37,223 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:37,224 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:37,224 INFO  L82        PathProgramCache]: Analyzing trace with hash 2700462, now seen corresponding path program 1 times
[2021-10-11 00:22:37,224 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:37,225 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799157244]
[2021-10-11 00:22:37,225 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:37,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:37,323 INFO  L134       CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2021-10-11 00:22:37,323 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799157244]
[2021-10-11 00:22:37,324 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:22:37,324 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-11 00:22:37,324 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532360851]
[2021-10-11 00:22:37,325 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:37,325 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:37,326 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:37,326 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:22:37,326 INFO  L87              Difference]: Start difference. First operand 790 states and 1000 transitions. Second operand 3 states.
[2021-10-11 00:22:37,913 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:37,913 INFO  L93              Difference]: Finished difference Result 1840 states and 2320 transitions.
[2021-10-11 00:22:37,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:37,914 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 123
[2021-10-11 00:22:37,914 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:37,921 INFO  L225             Difference]: With dead ends: 1840
[2021-10-11 00:22:37,921 INFO  L226             Difference]: Without dead ends: 1052
[2021-10-11 00:22:37,922 INFO  L677         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
[2021-10-11 00:22:37,924 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1052 states.
[2021-10-11 00:22:37,943 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 790.
[2021-10-11 00:22:37,943 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 790 states.
[2021-10-11 00:22:37,946 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 988 transitions.
[2021-10-11 00:22:37,946 INFO  L78                 Accepts]: Start accepts. Automaton has 790 states and 988 transitions. Word has length 123
[2021-10-11 00:22:37,947 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:37,947 INFO  L481      AbstractCegarLoop]: Abstraction has 790 states and 988 transitions.
[2021-10-11 00:22:37,947 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:37,947 INFO  L276                IsEmpty]: Start isEmpty. Operand 790 states and 988 transitions.
[2021-10-11 00:22:37,949 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2021-10-11 00:22:37,950 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:37,950 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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]
[2021-10-11 00:22:37,950 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-11 00:22:37,950 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:37,951 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:37,951 INFO  L82        PathProgramCache]: Analyzing trace with hash 1869699958, now seen corresponding path program 1 times
[2021-10-11 00:22:37,951 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:37,952 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005055411]
[2021-10-11 00:22:37,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:37,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:38,046 INFO  L134       CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2021-10-11 00:22:38,047 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005055411]
[2021-10-11 00:22:38,060 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:22:38,060 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-11 00:22:38,060 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111973188]
[2021-10-11 00:22:38,061 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:38,061 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:38,061 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:38,062 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:22:38,062 INFO  L87              Difference]: Start difference. First operand 790 states and 988 transitions. Second operand 3 states.
[2021-10-11 00:22:38,666 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:38,666 INFO  L93              Difference]: Finished difference Result 1971 states and 2439 transitions.
[2021-10-11 00:22:38,666 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:38,666 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 127
[2021-10-11 00:22:38,667 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:38,673 INFO  L225             Difference]: With dead ends: 1971
[2021-10-11 00:22:38,673 INFO  L226             Difference]: Without dead ends: 1052
[2021-10-11 00:22:38,675 INFO  L677         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
[2021-10-11 00:22:38,677 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1052 states.
[2021-10-11 00:22:38,708 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052.
[2021-10-11 00:22:38,708 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1052 states.
[2021-10-11 00:22:38,712 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1192 transitions.
[2021-10-11 00:22:38,712 INFO  L78                 Accepts]: Start accepts. Automaton has 1052 states and 1192 transitions. Word has length 127
[2021-10-11 00:22:38,712 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:38,712 INFO  L481      AbstractCegarLoop]: Abstraction has 1052 states and 1192 transitions.
[2021-10-11 00:22:38,712 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:38,712 INFO  L276                IsEmpty]: Start isEmpty. Operand 1052 states and 1192 transitions.
[2021-10-11 00:22:38,715 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2021-10-11 00:22:38,716 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:38,716 INFO  L422         BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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, 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]
[2021-10-11 00:22:38,716 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-11 00:22:38,716 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:38,717 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:38,717 INFO  L82        PathProgramCache]: Analyzing trace with hash -1985753384, now seen corresponding path program 1 times
[2021-10-11 00:22:38,717 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:38,717 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177991000]
[2021-10-11 00:22:38,718 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:38,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:38,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked.
[2021-10-11 00:22:38,854 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177991000]
[2021-10-11 00:22:38,855 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:22:38,855 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-11 00:22:38,855 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264396460]
[2021-10-11 00:22:38,856 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:38,857 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:38,859 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:38,859 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:22:38,859 INFO  L87              Difference]: Start difference. First operand 1052 states and 1192 transitions. Second operand 3 states.
[2021-10-11 00:22:39,413 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:39,413 INFO  L93              Difference]: Finished difference Result 2757 states and 3121 transitions.
[2021-10-11 00:22:39,413 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:39,413 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 136
[2021-10-11 00:22:39,414 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:39,423 INFO  L225             Difference]: With dead ends: 2757
[2021-10-11 00:22:39,423 INFO  L226             Difference]: Without dead ends: 1707
[2021-10-11 00:22:39,425 INFO  L677         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
[2021-10-11 00:22:39,427 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1707 states.
[2021-10-11 00:22:39,456 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1314.
[2021-10-11 00:22:39,457 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1314 states.
[2021-10-11 00:22:39,460 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1490 transitions.
[2021-10-11 00:22:39,461 INFO  L78                 Accepts]: Start accepts. Automaton has 1314 states and 1490 transitions. Word has length 136
[2021-10-11 00:22:39,461 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:39,461 INFO  L481      AbstractCegarLoop]: Abstraction has 1314 states and 1490 transitions.
[2021-10-11 00:22:39,461 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:39,461 INFO  L276                IsEmpty]: Start isEmpty. Operand 1314 states and 1490 transitions.
[2021-10-11 00:22:39,465 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2021-10-11 00:22:39,465 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:39,465 INFO  L422         BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:22:39,465 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-11 00:22:39,466 INFO  L429      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:39,466 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:39,466 INFO  L82        PathProgramCache]: Analyzing trace with hash -663688046, now seen corresponding path program 1 times
[2021-10-11 00:22:39,466 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:39,467 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7942073]
[2021-10-11 00:22:39,467 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:39,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:39,550 INFO  L134       CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked.
[2021-10-11 00:22:39,550 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7942073]
[2021-10-11 00:22:39,551 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:22:39,551 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-11 00:22:39,551 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689945437]
[2021-10-11 00:22:39,551 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:39,552 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:39,552 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:39,552 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-11 00:22:39,552 INFO  L87              Difference]: Start difference. First operand 1314 states and 1490 transitions. Second operand 3 states.
[2021-10-11 00:22:40,050 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:40,050 INFO  L93              Difference]: Finished difference Result 2888 states and 3281 transitions.
[2021-10-11 00:22:40,050 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:40,051 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 152
[2021-10-11 00:22:40,051 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:40,059 INFO  L225             Difference]: With dead ends: 2888
[2021-10-11 00:22:40,059 INFO  L226             Difference]: Without dead ends: 1576
[2021-10-11 00:22:40,061 INFO  L677         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
[2021-10-11 00:22:40,064 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1576 states.
[2021-10-11 00:22:40,095 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576.
[2021-10-11 00:22:40,095 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1576 states.
[2021-10-11 00:22:40,100 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1777 transitions.
[2021-10-11 00:22:40,100 INFO  L78                 Accepts]: Start accepts. Automaton has 1576 states and 1777 transitions. Word has length 152
[2021-10-11 00:22:40,100 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:40,100 INFO  L481      AbstractCegarLoop]: Abstraction has 1576 states and 1777 transitions.
[2021-10-11 00:22:40,101 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:40,101 INFO  L276                IsEmpty]: Start isEmpty. Operand 1576 states and 1777 transitions.
[2021-10-11 00:22:40,105 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2021-10-11 00:22:40,105 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:40,105 INFO  L422         BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:22:40,105 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-10-11 00:22:40,105 INFO  L429      AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:40,106 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:40,106 INFO  L82        PathProgramCache]: Analyzing trace with hash 763947048, now seen corresponding path program 1 times
[2021-10-11 00:22:40,106 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:40,106 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800531900]
[2021-10-11 00:22:40,106 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:40,134 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:40,278 INFO  L134       CoverageAnalysis]: Checked inductivity of 142 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked.
[2021-10-11 00:22:40,278 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800531900]
[2021-10-11 00:22:40,278 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597860430]
[2021-10-11 00:22:40,279 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:22:40,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:40,438 INFO  L263         TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-11 00:22:40,465 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:22:40,762 INFO  L134       CoverageAnalysis]: Checked inductivity of 142 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2021-10-11 00:22:40,762 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-10-11 00:22:40,763 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2021-10-11 00:22:40,763 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286158164]
[2021-10-11 00:22:40,763 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:40,763 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:40,764 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:40,764 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:40,764 INFO  L87              Difference]: Start difference. First operand 1576 states and 1777 transitions. Second operand 3 states.
[2021-10-11 00:22:41,344 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:41,344 INFO  L93              Difference]: Finished difference Result 3543 states and 4023 transitions.
[2021-10-11 00:22:41,345 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:41,345 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 168
[2021-10-11 00:22:41,347 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:41,357 INFO  L225             Difference]: With dead ends: 3543
[2021-10-11 00:22:41,357 INFO  L226             Difference]: Without dead ends: 1969
[2021-10-11 00:22:41,360 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:41,363 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1969 states.
[2021-10-11 00:22:41,398 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838.
[2021-10-11 00:22:41,398 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1838 states.
[2021-10-11 00:22:41,403 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2057 transitions.
[2021-10-11 00:22:41,404 INFO  L78                 Accepts]: Start accepts. Automaton has 1838 states and 2057 transitions. Word has length 168
[2021-10-11 00:22:41,405 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:41,406 INFO  L481      AbstractCegarLoop]: Abstraction has 1838 states and 2057 transitions.
[2021-10-11 00:22:41,406 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:41,406 INFO  L276                IsEmpty]: Start isEmpty. Operand 1838 states and 2057 transitions.
[2021-10-11 00:22:41,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 175
[2021-10-11 00:22:41,411 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:41,411 INFO  L422         BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:22:41,627 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2021-10-11 00:22:41,628 INFO  L429      AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:41,628 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:41,628 INFO  L82        PathProgramCache]: Analyzing trace with hash 387053783, now seen corresponding path program 1 times
[2021-10-11 00:22:41,628 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:41,629 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277693559]
[2021-10-11 00:22:41,629 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:41,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:41,773 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2021-10-11 00:22:41,775 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277693559]
[2021-10-11 00:22:41,775 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27946075]
[2021-10-11 00:22:41,775 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:22:41,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:41,919 INFO  L263         TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-11 00:22:41,933 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:22:42,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 148 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked.
[2021-10-11 00:22:42,246 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-10-11 00:22:42,246 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2021-10-11 00:22:42,246 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412352372]
[2021-10-11 00:22:42,246 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:42,247 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:42,247 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:42,247 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:42,247 INFO  L87              Difference]: Start difference. First operand 1838 states and 2057 transitions. Second operand 3 states.
[2021-10-11 00:22:42,793 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:42,793 INFO  L93              Difference]: Finished difference Result 4198 states and 4722 transitions.
[2021-10-11 00:22:42,793 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:42,794 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 174
[2021-10-11 00:22:42,794 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:42,807 INFO  L225             Difference]: With dead ends: 4198
[2021-10-11 00:22:42,807 INFO  L226             Difference]: Without dead ends: 2362
[2021-10-11 00:22:42,810 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:42,813 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2362 states.
[2021-10-11 00:22:42,856 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100.
[2021-10-11 00:22:42,857 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2100 states.
[2021-10-11 00:22:42,862 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2354 transitions.
[2021-10-11 00:22:42,863 INFO  L78                 Accepts]: Start accepts. Automaton has 2100 states and 2354 transitions. Word has length 174
[2021-10-11 00:22:42,881 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:42,881 INFO  L481      AbstractCegarLoop]: Abstraction has 2100 states and 2354 transitions.
[2021-10-11 00:22:42,882 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:42,882 INFO  L276                IsEmpty]: Start isEmpty. Operand 2100 states and 2354 transitions.
[2021-10-11 00:22:42,887 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2021-10-11 00:22:42,887 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:42,887 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:22:43,103 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:22:43,104 INFO  L429      AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:43,104 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:43,104 INFO  L82        PathProgramCache]: Analyzing trace with hash 541829411, now seen corresponding path program 1 times
[2021-10-11 00:22:43,104 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:43,104 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311417478]
[2021-10-11 00:22:43,104 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:43,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:43,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 237 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2021-10-11 00:22:43,217 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311417478]
[2021-10-11 00:22:43,217 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808026473]
[2021-10-11 00:22:43,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:22:43,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:43,354 INFO  L263         TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-11 00:22:43,357 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:22:43,568 INFO  L134       CoverageAnalysis]: Checked inductivity of 237 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2021-10-11 00:22:43,569 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-10-11 00:22:43,569 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2021-10-11 00:22:43,569 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556540499]
[2021-10-11 00:22:43,570 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:43,570 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:43,571 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:43,572 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:43,572 INFO  L87              Difference]: Start difference. First operand 2100 states and 2354 transitions. Second operand 3 states.
[2021-10-11 00:22:44,149 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:44,149 INFO  L93              Difference]: Finished difference Result 4984 states and 5570 transitions.
[2021-10-11 00:22:44,150 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:44,150 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 195
[2021-10-11 00:22:44,150 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:44,166 INFO  L225             Difference]: With dead ends: 4984
[2021-10-11 00:22:44,166 INFO  L226             Difference]: Without dead ends: 2886
[2021-10-11 00:22:44,169 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:44,173 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2886 states.
[2021-10-11 00:22:44,226 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2755.
[2021-10-11 00:22:44,226 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2755 states.
[2021-10-11 00:22:44,233 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3057 transitions.
[2021-10-11 00:22:44,234 INFO  L78                 Accepts]: Start accepts. Automaton has 2755 states and 3057 transitions. Word has length 195
[2021-10-11 00:22:44,234 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:44,234 INFO  L481      AbstractCegarLoop]: Abstraction has 2755 states and 3057 transitions.
[2021-10-11 00:22:44,234 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:44,234 INFO  L276                IsEmpty]: Start isEmpty. Operand 2755 states and 3057 transitions.
[2021-10-11 00:22:44,241 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2021-10-11 00:22:44,241 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:44,241 INFO  L422         BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:22:44,463 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2021-10-11 00:22:44,463 INFO  L429      AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:44,464 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:44,464 INFO  L82        PathProgramCache]: Analyzing trace with hash -1842773767, now seen corresponding path program 1 times
[2021-10-11 00:22:44,464 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:44,464 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255323809]
[2021-10-11 00:22:44,464 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:44,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:44,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 94 proven. 3 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked.
[2021-10-11 00:22:44,653 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255323809]
[2021-10-11 00:22:44,653 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494462939]
[2021-10-11 00:22:44,653 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:22:44,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:44,809 INFO  L263         TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-11 00:22:44,812 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:22:45,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2021-10-11 00:22:45,023 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-10-11 00:22:45,023 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2021-10-11 00:22:45,023 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665070303]
[2021-10-11 00:22:45,024 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:45,024 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:45,025 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:45,025 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:45,025 INFO  L87              Difference]: Start difference. First operand 2755 states and 3057 transitions. Second operand 3 states.
[2021-10-11 00:22:45,590 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:45,590 INFO  L93              Difference]: Finished difference Result 6032 states and 6689 transitions.
[2021-10-11 00:22:45,591 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:45,591 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 214
[2021-10-11 00:22:45,591 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:45,609 INFO  L225             Difference]: With dead ends: 6032
[2021-10-11 00:22:45,609 INFO  L226             Difference]: Without dead ends: 3279
[2021-10-11 00:22:45,613 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:45,618 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3279 states.
[2021-10-11 00:22:45,671 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2755.
[2021-10-11 00:22:45,671 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2755 states.
[2021-10-11 00:22:45,678 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3057 transitions.
[2021-10-11 00:22:45,679 INFO  L78                 Accepts]: Start accepts. Automaton has 2755 states and 3057 transitions. Word has length 214
[2021-10-11 00:22:45,679 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:45,679 INFO  L481      AbstractCegarLoop]: Abstraction has 2755 states and 3057 transitions.
[2021-10-11 00:22:45,679 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:45,680 INFO  L276                IsEmpty]: Start isEmpty. Operand 2755 states and 3057 transitions.
[2021-10-11 00:22:45,687 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 227
[2021-10-11 00:22:45,687 INFO  L414         BasicCegarLoop]: Found error trace
[2021-10-11 00:22:45,687 INFO  L422         BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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]
[2021-10-11 00:22:45,907 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:22:45,907 INFO  L429      AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:22:45,908 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:22:45,908 INFO  L82        PathProgramCache]: Analyzing trace with hash -675360257, now seen corresponding path program 1 times
[2021-10-11 00:22:45,908 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:22:45,908 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938811816]
[2021-10-11 00:22:45,909 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:22:45,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:46,035 INFO  L134       CoverageAnalysis]: Checked inductivity of 330 backedges. 127 proven. 3 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked.
[2021-10-11 00:22:46,036 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938811816]
[2021-10-11 00:22:46,036 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197041103]
[2021-10-11 00:22:46,036 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:22:46,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:22:46,186 INFO  L263         TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-10-11 00:22:46,191 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:22:46,492 INFO  L134       CoverageAnalysis]: Checked inductivity of 330 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked.
[2021-10-11 00:22:46,492 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-10-11 00:22:46,492 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2021-10-11 00:22:46,495 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358779349]
[2021-10-11 00:22:46,498 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-10-11 00:22:46,498 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:22:46,499 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-11 00:22:46,499 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:46,499 INFO  L87              Difference]: Start difference. First operand 2755 states and 3057 transitions. Second operand 3 states.
[2021-10-11 00:22:47,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:22:47,003 INFO  L93              Difference]: Finished difference Result 4851 states and 5346 transitions.
[2021-10-11 00:22:47,003 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-11 00:22:47,003 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 226
[2021-10-11 00:22:47,004 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:22:47,004 INFO  L225             Difference]: With dead ends: 4851
[2021-10-11 00:22:47,004 INFO  L226             Difference]: Without dead ends: 0
[2021-10-11 00:22:47,009 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:22:47,009 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-11 00:22:47,009 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-11 00:22:47,010 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2021-10-11 00:22:47,010 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-11 00:22:47,010 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226
[2021-10-11 00:22:47,010 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:22:47,010 INFO  L481      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-11 00:22:47,010 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-10-11 00:22:47,011 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-11 00:22:47,011 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-11 00:22:47,235 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2021-10-11 00:22:47,237 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-10-11 00:22:47,506 WARN  L197               SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35
[2021-10-11 00:22:47,697 WARN  L197               SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35
[2021-10-11 00:22:47,700 INFO  L262        CegarLoopResult]: For program point  L564(line 564)  no Hoare annotation was computed.
[2021-10-11 00:22:47,701 INFO  L262        CegarLoopResult]: For program point  L531(line 531)  no Hoare annotation was computed.
[2021-10-11 00:22:47,701 INFO  L262        CegarLoopResult]: For program point  L498(line 498)  no Hoare annotation was computed.
[2021-10-11 00:22:47,701 INFO  L262        CegarLoopResult]: For program point  L465(line 465)  no Hoare annotation was computed.
[2021-10-11 00:22:47,701 INFO  L262        CegarLoopResult]: For program point  L432(line 432)  no Hoare annotation was computed.
[2021-10-11 00:22:47,701 INFO  L262        CegarLoopResult]: For program point  L102(lines 102 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,701 INFO  L262        CegarLoopResult]: For program point  L598(line 598)  no Hoare annotation was computed.
[2021-10-11 00:22:47,701 INFO  L262        CegarLoopResult]: For program point  L334(lines 334 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,702 INFO  L262        CegarLoopResult]: For program point  L566-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,702 INFO  L262        CegarLoopResult]: For program point  L533-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,702 INFO  L262        CegarLoopResult]: For program point  L500-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,702 INFO  L262        CegarLoopResult]: For program point  L467-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,702 INFO  L262        CegarLoopResult]: For program point  L401(lines 401 403)  no Hoare annotation was computed.
[2021-10-11 00:22:47,702 INFO  L262        CegarLoopResult]: For program point  L434-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,703 INFO  L262        CegarLoopResult]: For program point  L401-2(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,703 INFO  L262        CegarLoopResult]: For program point  L302(lines 302 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,703 INFO  L262        CegarLoopResult]: For program point  L170(lines 170 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,703 INFO  L262        CegarLoopResult]: For program point  L567(line 567)  no Hoare annotation was computed.
[2021-10-11 00:22:47,703 INFO  L262        CegarLoopResult]: For program point  L534(line 534)  no Hoare annotation was computed.
[2021-10-11 00:22:47,703 INFO  L262        CegarLoopResult]: For program point  L501(line 501)  no Hoare annotation was computed.
[2021-10-11 00:22:47,703 INFO  L262        CegarLoopResult]: For program point  L468(line 468)  no Hoare annotation was computed.
[2021-10-11 00:22:47,703 INFO  L262        CegarLoopResult]: For program point  L435(line 435)  no Hoare annotation was computed.
[2021-10-11 00:22:47,704 INFO  L262        CegarLoopResult]: For program point  L402(line 402)  no Hoare annotation was computed.
[2021-10-11 00:22:47,704 INFO  L262        CegarLoopResult]: For program point  L204(lines 204 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,704 INFO  L262        CegarLoopResult]: For program point  L72(lines 72 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,704 INFO  L262        CegarLoopResult]: For program point  L271(lines 271 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,704 INFO  L262        CegarLoopResult]: For program point  L139(lines 139 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,704 INFO  L262        CegarLoopResult]: For program point  L569-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,704 INFO  L262        CegarLoopResult]: For program point  L536-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,705 INFO  L262        CegarLoopResult]: For program point  L503-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,705 INFO  L262        CegarLoopResult]: For program point  L470-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,705 INFO  L262        CegarLoopResult]: For program point  L437-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,705 INFO  L262        CegarLoopResult]: For program point  L371(lines 371 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,705 INFO  L262        CegarLoopResult]: For program point  L404-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,705 INFO  L262        CegarLoopResult]: For program point  L107(lines 107 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,705 INFO  L262        CegarLoopResult]: For program point  L41(lines 41 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,706 INFO  L262        CegarLoopResult]: For program point  L570(line 570)  no Hoare annotation was computed.
[2021-10-11 00:22:47,706 INFO  L262        CegarLoopResult]: For program point  L537(line 537)  no Hoare annotation was computed.
[2021-10-11 00:22:47,706 INFO  L262        CegarLoopResult]: For program point  L504(line 504)  no Hoare annotation was computed.
[2021-10-11 00:22:47,706 INFO  L262        CegarLoopResult]: For program point  L471(line 471)  no Hoare annotation was computed.
[2021-10-11 00:22:47,706 INFO  L262        CegarLoopResult]: For program point  L438(line 438)  no Hoare annotation was computed.
[2021-10-11 00:22:47,706 INFO  L262        CegarLoopResult]: For program point  L405(line 405)  no Hoare annotation was computed.
[2021-10-11 00:22:47,706 INFO  L262        CegarLoopResult]: For program point  L339(lines 339 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,706 INFO  L262        CegarLoopResult]: For program point  L207(lines 207 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,707 INFO  L262        CegarLoopResult]: For program point  L75(lines 75 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,707 INFO  L262        CegarLoopResult]: For program point  L373(lines 373 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,707 INFO  L262        CegarLoopResult]: For program point  L241(lines 241 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,707 INFO  L262        CegarLoopResult]: For program point  L175(lines 175 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,707 INFO  L262        CegarLoopResult]: For program point  L572-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,707 INFO  L262        CegarLoopResult]: For program point  L539-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,707 INFO  L262        CegarLoopResult]: For program point  L506-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,708 INFO  L262        CegarLoopResult]: For program point  L473-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,708 INFO  L262        CegarLoopResult]: For program point  L440-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,708 INFO  L262        CegarLoopResult]: For program point  L407-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,708 INFO  L262        CegarLoopResult]: For program point  L275(lines 275 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,708 INFO  L262        CegarLoopResult]: For program point  L573(line 573)  no Hoare annotation was computed.
[2021-10-11 00:22:47,708 INFO  L262        CegarLoopResult]: For program point  L540(line 540)  no Hoare annotation was computed.
[2021-10-11 00:22:47,708 INFO  L262        CegarLoopResult]: For program point  L507(line 507)  no Hoare annotation was computed.
[2021-10-11 00:22:47,708 INFO  L262        CegarLoopResult]: For program point  L474(line 474)  no Hoare annotation was computed.
[2021-10-11 00:22:47,709 INFO  L262        CegarLoopResult]: For program point  L441(line 441)  no Hoare annotation was computed.
[2021-10-11 00:22:47,709 INFO  L262        CegarLoopResult]: For program point  L408(line 408)  no Hoare annotation was computed.
[2021-10-11 00:22:47,709 INFO  L262        CegarLoopResult]: For program point  L375(lines 375 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,709 INFO  L262        CegarLoopResult]: For program point  L309(lines 309 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,709 INFO  L262        CegarLoopResult]: For program point  L45(lines 45 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,709 INFO  L262        CegarLoopResult]: For program point  L343(lines 343 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,709 INFO  L262        CegarLoopResult]: For program point  L112(lines 112 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,710 INFO  L262        CegarLoopResult]: For program point  L575-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,710 INFO  L262        CegarLoopResult]: For program point  L542-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,710 INFO  L262        CegarLoopResult]: For program point  L509-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,710 INFO  L262        CegarLoopResult]: For program point  L476-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,710 INFO  L262        CegarLoopResult]: For program point  L443-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,710 INFO  L262        CegarLoopResult]: For program point  L410-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,710 INFO  L262        CegarLoopResult]: For program point  L278(lines 278 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,710 INFO  L262        CegarLoopResult]: For program point  L146(lines 146 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,711 INFO  L262        CegarLoopResult]: For program point  L576(line 576)  no Hoare annotation was computed.
[2021-10-11 00:22:47,711 INFO  L262        CegarLoopResult]: For program point  L543(line 543)  no Hoare annotation was computed.
[2021-10-11 00:22:47,711 INFO  L262        CegarLoopResult]: For program point  L510(line 510)  no Hoare annotation was computed.
[2021-10-11 00:22:47,711 INFO  L262        CegarLoopResult]: For program point  L477(line 477)  no Hoare annotation was computed.
[2021-10-11 00:22:47,711 INFO  L262        CegarLoopResult]: For program point  L444(line 444)  no Hoare annotation was computed.
[2021-10-11 00:22:47,711 INFO  L262        CegarLoopResult]: For program point  L411(line 411)  no Hoare annotation was computed.
[2021-10-11 00:22:47,711 INFO  L262        CegarLoopResult]: For program point  L213(lines 213 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,711 INFO  L262        CegarLoopResult]: For program point  L82(lines 82 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,712 INFO  L262        CegarLoopResult]: For program point  L578-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,712 INFO  L262        CegarLoopResult]: For program point  L545-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,712 INFO  L262        CegarLoopResult]: For program point  L512-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,712 INFO  L262        CegarLoopResult]: For program point  L479-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,712 INFO  L262        CegarLoopResult]: For program point  L446-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,712 INFO  L262        CegarLoopResult]: For program point  L413-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,712 INFO  L262        CegarLoopResult]: For program point  L347(lines 347 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,712 INFO  L262        CegarLoopResult]: For program point  L248(lines 248 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,713 INFO  L262        CegarLoopResult]: For program point  L579(line 579)  no Hoare annotation was computed.
[2021-10-11 00:22:47,713 INFO  L262        CegarLoopResult]: For program point  L546(line 546)  no Hoare annotation was computed.
[2021-10-11 00:22:47,713 INFO  L262        CegarLoopResult]: For program point  L513(line 513)  no Hoare annotation was computed.
[2021-10-11 00:22:47,713 INFO  L262        CegarLoopResult]: For program point  L480(line 480)  no Hoare annotation was computed.
[2021-10-11 00:22:47,713 INFO  L262        CegarLoopResult]: For program point  L447(line 447)  no Hoare annotation was computed.
[2021-10-11 00:22:47,713 INFO  L262        CegarLoopResult]: For program point  L414(line 414)  no Hoare annotation was computed.
[2021-10-11 00:22:47,713 INFO  L262        CegarLoopResult]: For program point  L183(lines 183 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,713 INFO  L262        CegarLoopResult]: For program point  L150(lines 150 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,714 INFO  L262        CegarLoopResult]: For program point  L382(lines 382 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,714 INFO  L262        CegarLoopResult]: For program point  L316(lines 316 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,714 INFO  L262        CegarLoopResult]: For program point  L283(lines 283 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,714 INFO  L262        CegarLoopResult]: For program point  L118(lines 118 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,714 INFO  L262        CegarLoopResult]: For program point  L581-1(lines 581 583)  no Hoare annotation was computed.
[2021-10-11 00:22:47,714 INFO  L262        CegarLoopResult]: For program point  L548-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,714 INFO  L262        CegarLoopResult]: For program point  L515-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,714 INFO  L262        CegarLoopResult]: For program point  L482-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,715 INFO  L262        CegarLoopResult]: For program point  L449-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,715 INFO  L262        CegarLoopResult]: For program point  L416-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,715 INFO  L262        CegarLoopResult]: For program point  ULTIMATE.startENTRY(line -1)  no Hoare annotation was computed.
[2021-10-11 00:22:47,715 INFO  L262        CegarLoopResult]: For program point  L218(lines 218 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,715 INFO  L262        CegarLoopResult]: For program point  L53(lines 53 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,715 INFO  L262        CegarLoopResult]: For program point  L582(line 582)  no Hoare annotation was computed.
[2021-10-11 00:22:47,715 INFO  L262        CegarLoopResult]: For program point  L549(line 549)  no Hoare annotation was computed.
[2021-10-11 00:22:47,715 INFO  L262        CegarLoopResult]: For program point  L516(line 516)  no Hoare annotation was computed.
[2021-10-11 00:22:47,736 INFO  L262        CegarLoopResult]: For program point  L483(line 483)  no Hoare annotation was computed.
[2021-10-11 00:22:47,737 INFO  L262        CegarLoopResult]: For program point  L450(line 450)  no Hoare annotation was computed.
[2021-10-11 00:22:47,737 INFO  L262        CegarLoopResult]: For program point  L417(line 417)  no Hoare annotation was computed.
[2021-10-11 00:22:47,737 INFO  L262        CegarLoopResult]: For program point  L154(lines 154 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,738 INFO  L258        CegarLoopResult]: At program point  L584(lines 40 585)  the Hoare annotation is:  (let ((.cse6 (= ~a20~0 1))) (let ((.cse5 (<= ~a7~0 0)) (.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse0 (= ~a21~0 1)) (.cse4 (<= ~a17~0 0)) (.cse8 (not .cse6)) (.cse2 (= ~a17~0 1)) (.cse9 (<= ~a16~0 5)) (.cse7 (<= ~a21~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4 .cse5) (and .cse4 .cse6 .cse7) (and .cse0 .cse5 .cse6 .cse2) (and .cse3 .cse6 .cse2) (and .cse4 .cse8 .cse1) (and (<= 14 ~a8~0) .cse0 .cse4 .cse6) (and .cse9 .cse4 .cse8) (and .cse7 .cse6 .cse2) (and .cse9 .cse7))))
[2021-10-11 00:22:47,738 INFO  L262        CegarLoopResult]: For program point  L551-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,738 INFO  L262        CegarLoopResult]: For program point  L518-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,738 INFO  L262        CegarLoopResult]: For program point  L485-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,738 INFO  L262        CegarLoopResult]: For program point  L452-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,738 INFO  L262        CegarLoopResult]: For program point  L419-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,739 INFO  L262        CegarLoopResult]: For program point  L188(lines 188 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,739 INFO  L262        CegarLoopResult]: For program point  L552(line 552)  no Hoare annotation was computed.
[2021-10-11 00:22:47,739 INFO  L262        CegarLoopResult]: For program point  L519(line 519)  no Hoare annotation was computed.
[2021-10-11 00:22:47,739 INFO  L262        CegarLoopResult]: For program point  L486(line 486)  no Hoare annotation was computed.
[2021-10-11 00:22:47,739 INFO  L262        CegarLoopResult]: For program point  L453(line 453)  no Hoare annotation was computed.
[2021-10-11 00:22:47,739 INFO  L262        CegarLoopResult]: For program point  L420(line 420)  no Hoare annotation was computed.
[2021-10-11 00:22:47,739 INFO  L262        CegarLoopResult]: For program point  L387(lines 387 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,740 INFO  L262        CegarLoopResult]: For program point  L288(lines 288 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,740 INFO  L262        CegarLoopResult]: For program point  L255(lines 255 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,740 INFO  L262        CegarLoopResult]: For program point  L90(lines 90 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,740 INFO  L262        CegarLoopResult]: For program point  L355(lines 355 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,740 INFO  L262        CegarLoopResult]: For program point  L322(lines 322 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,740 INFO  L262        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2021-10-11 00:22:47,740 INFO  L262        CegarLoopResult]: For program point  L124(lines 124 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,740 INFO  L265        CegarLoopResult]: At program point  L587(lines 587 604)  the Hoare annotation is:  true
[2021-10-11 00:22:47,741 INFO  L262        CegarLoopResult]: For program point  L554-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,741 INFO  L262        CegarLoopResult]: For program point  L521-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,741 INFO  L262        CegarLoopResult]: For program point  L488-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,741 INFO  L262        CegarLoopResult]: For program point  L455-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,741 INFO  L262        CegarLoopResult]: For program point  L422-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,741 INFO  L262        CegarLoopResult]: For program point  L224(lines 224 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,741 INFO  L262        CegarLoopResult]: For program point  L158(lines 158 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,742 INFO  L262        CegarLoopResult]: For program point  L59(lines 59 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,742 INFO  L262        CegarLoopResult]: For program point  L555(line 555)  no Hoare annotation was computed.
[2021-10-11 00:22:47,742 INFO  L262        CegarLoopResult]: For program point  L522(line 522)  no Hoare annotation was computed.
[2021-10-11 00:22:47,742 INFO  L262        CegarLoopResult]: For program point  L489(line 489)  no Hoare annotation was computed.
[2021-10-11 00:22:47,742 INFO  L262        CegarLoopResult]: For program point  L456(line 456)  no Hoare annotation was computed.
[2021-10-11 00:22:47,742 INFO  L262        CegarLoopResult]: For program point  L423(line 423)  no Hoare annotation was computed.
[2021-10-11 00:22:47,742 INFO  L262        CegarLoopResult]: For program point  L94(lines 94 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,743 INFO  L262        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2021-10-11 00:22:47,743 INFO  L262        CegarLoopResult]: For program point  L557-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,743 INFO  L262        CegarLoopResult]: For program point  L524-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,743 INFO  L262        CegarLoopResult]: For program point  L491-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,743 INFO  L262        CegarLoopResult]: For program point  L458-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,743 INFO  L262        CegarLoopResult]: For program point  L392(lines 392 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,743 INFO  L262        CegarLoopResult]: For program point  L425-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,743 INFO  L262        CegarLoopResult]: For program point  L326(lines 326 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,744 INFO  L262        CegarLoopResult]: For program point  L260(lines 260 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,744 INFO  L262        CegarLoopResult]: For program point  L558(line 558)  no Hoare annotation was computed.
[2021-10-11 00:22:47,744 INFO  L262        CegarLoopResult]: For program point  L525(line 525)  no Hoare annotation was computed.
[2021-10-11 00:22:47,744 INFO  L262        CegarLoopResult]: For program point  L492(line 492)  no Hoare annotation was computed.
[2021-10-11 00:22:47,744 INFO  L262        CegarLoopResult]: For program point  L459(line 459)  no Hoare annotation was computed.
[2021-10-11 00:22:47,744 INFO  L262        CegarLoopResult]: For program point  L426(line 426)  no Hoare annotation was computed.
[2021-10-11 00:22:47,744 INFO  L262        CegarLoopResult]: For program point  L228(lines 228 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,745 INFO  L262        CegarLoopResult]: For program point  L162(lines 162 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,745 INFO  L262        CegarLoopResult]: For program point  L129(lines 129 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,745 INFO  L262        CegarLoopResult]: For program point  L328(lines 328 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,745 INFO  L262        CegarLoopResult]: For program point  L196(lines 196 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,745 INFO  L262        CegarLoopResult]: For program point  L64(lines 64 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,745 INFO  L262        CegarLoopResult]: For program point  L560-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,746 INFO  L258        CegarLoopResult]: At program point  L593-2(lines 593 603)  the Hoare annotation is:  (let ((.cse6 (= ~a20~0 1))) (let ((.cse5 (<= ~a7~0 0)) (.cse3 (<= ~a16~0 4)) (.cse1 (<= 15 ~a8~0)) (.cse0 (= ~a21~0 1)) (.cse4 (<= ~a17~0 0)) (.cse8 (not .cse6)) (.cse2 (= ~a17~0 1)) (.cse9 (<= ~a16~0 5)) (.cse7 (<= ~a21~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4 .cse5) (and .cse4 .cse6 .cse7) (and .cse0 .cse5 .cse6 .cse2) (and .cse3 .cse6 .cse2) (and .cse4 .cse8 .cse1) (and (<= 14 ~a8~0) .cse0 .cse4 .cse6) (and .cse9 .cse4 .cse8) (and .cse7 .cse6 .cse2) (and .cse9 .cse7))))
[2021-10-11 00:22:47,746 INFO  L262        CegarLoopResult]: For program point  L527-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,746 INFO  L262        CegarLoopResult]: For program point  L494-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,746 INFO  L262        CegarLoopResult]: For program point  L461-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,746 INFO  L262        CegarLoopResult]: For program point  L428-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,746 INFO  L262        CegarLoopResult]: For program point  L296(lines 296 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,747 INFO  L262        CegarLoopResult]: For program point  L-1(line -1)  no Hoare annotation was computed.
[2021-10-11 00:22:47,747 INFO  L262        CegarLoopResult]: For program point  ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 441)  no Hoare annotation was computed.
[2021-10-11 00:22:47,747 INFO  L262        CegarLoopResult]: For program point  L561(line 561)  no Hoare annotation was computed.
[2021-10-11 00:22:47,747 INFO  L262        CegarLoopResult]: For program point  L528(line 528)  no Hoare annotation was computed.
[2021-10-11 00:22:47,747 INFO  L262        CegarLoopResult]: For program point  L495(line 495)  no Hoare annotation was computed.
[2021-10-11 00:22:47,747 INFO  L262        CegarLoopResult]: For program point  L462(line 462)  no Hoare annotation was computed.
[2021-10-11 00:22:47,747 INFO  L262        CegarLoopResult]: For program point  L429(line 429)  no Hoare annotation was computed.
[2021-10-11 00:22:47,748 INFO  L262        CegarLoopResult]: For program point  L363(lines 363 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,748 INFO  L262        CegarLoopResult]: For program point  L199(lines 199 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,748 INFO  L262        CegarLoopResult]: For program point  L563-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,748 INFO  L262        CegarLoopResult]: For program point  L530-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,748 INFO  L262        CegarLoopResult]: For program point  L497-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,748 INFO  L262        CegarLoopResult]: For program point  L464-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,748 INFO  L262        CegarLoopResult]: For program point  L431-1(lines 40 585)  no Hoare annotation was computed.
[2021-10-11 00:22:47,749 INFO  L262        CegarLoopResult]: For program point  L365(lines 365 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,749 INFO  L262        CegarLoopResult]: For program point  L266(lines 266 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,749 INFO  L262        CegarLoopResult]: For program point  L233(lines 233 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,749 INFO  L262        CegarLoopResult]: For program point  L134(lines 134 400)  no Hoare annotation was computed.
[2021-10-11 00:22:47,771 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:22:47 BoogieIcfgContainer
[2021-10-11 00:22:47,771 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-11 00:22:47,772 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-11 00:22:47,772 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-11 00:22:47,772 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-11 00:22:47,773 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:33" (3/4) ...
[2021-10-11 00:22:47,777 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2021-10-11 00:22:47,802 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges
[2021-10-11 00:22:47,803 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-10-11 00:22:47,805 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-11 00:22:47,806 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-11 00:22:47,942 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92589d61-1ce6-4b96-88b5-fc687d65a6ee/bin/uautomizer-Z5i5R5N3CC/witness.graphml
[2021-10-11 00:22:47,942 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-11 00:22:47,943 INFO  L168              Benchmark]: Toolchain (without parser) took 16530.48 ms. Allocated memory was 98.6 MB in the beginning and 478.2 MB in the end (delta: 379.6 MB). Free memory was 67.8 MB in the beginning and 424.2 MB in the end (delta: -356.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB.
[2021-10-11 00:22:47,944 INFO  L168              Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 98.6 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:22:47,945 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 630.11 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 67.8 MB in the beginning and 83.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
[2021-10-11 00:22:47,945 INFO  L168              Benchmark]: Boogie Procedure Inliner took 95.09 ms. Allocated memory is still 123.7 MB. Free memory was 83.6 MB in the beginning and 77.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-11 00:22:47,945 INFO  L168              Benchmark]: Boogie Preprocessor took 67.44 ms. Allocated memory is still 123.7 MB. Free memory was 77.9 MB in the beginning and 73.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB.
[2021-10-11 00:22:47,946 INFO  L168              Benchmark]: RCFGBuilder took 1405.07 ms. Allocated memory is still 123.7 MB. Free memory was 73.1 MB in the beginning and 71.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB.
[2021-10-11 00:22:47,946 INFO  L168              Benchmark]: TraceAbstraction took 14154.85 ms. Allocated memory was 123.7 MB in the beginning and 478.2 MB in the end (delta: 354.4 MB). Free memory was 71.1 MB in the beginning and 438.9 MB in the end (delta: -367.8 MB). Peak memory consumption was 184.5 MB. Max. memory is 16.1 GB.
[2021-10-11 00:22:47,947 INFO  L168              Benchmark]: Witness Printer took 170.77 ms. Allocated memory is still 478.2 MB. Free memory was 438.9 MB in the beginning and 424.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
[2021-10-11 00:22:47,949 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.50 ms. Allocated memory is still 98.6 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 630.11 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 67.8 MB in the beginning and 83.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 95.09 ms. Allocated memory is still 123.7 MB. Free memory was 83.6 MB in the beginning and 77.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 67.44 ms. Allocated memory is still 123.7 MB. Free memory was 77.9 MB in the beginning and 73.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 1405.07 ms. Allocated memory is still 123.7 MB. Free memory was 73.1 MB in the beginning and 71.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 14154.85 ms. Allocated memory was 123.7 MB in the beginning and 478.2 MB in the end (delta: 354.4 MB). Free memory was 71.1 MB in the beginning and 438.9 MB in the end (delta: -367.8 MB). Peak memory consumption was 184.5 MB. Max. memory is 16.1 GB.
 * Witness Printer took 170.77 ms. Allocated memory is still 478.2 MB. Free memory was 438.9 MB in the beginning and 424.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 441]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 40]: Loop Invariant
    Derived loop invariant: ((((((((((a21 == 1 && 15 <= a8) && a17 == 1) || (((a21 == 1 && a16 <= 4) && a17 <= 0) && a7 <= 0)) || ((a17 <= 0 && a20 == 1) && a21 <= 0)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a16 <= 4 && a20 == 1) && a17 == 1)) || ((a17 <= 0 && !(a20 == 1)) && 15 <= a8)) || (((14 <= a8 && a21 == 1) && a17 <= 0) && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a17 == 1)) || (a16 <= 5 && a21 <= 0)
  - InvariantResult [Line: 587]: Loop Invariant
    Derived loop invariant: 1
  - InvariantResult [Line: 593]: Loop Invariant
    Derived loop invariant: ((((((((((a21 == 1 && 15 <= a8) && a17 == 1) || (((a21 == 1 && a16 <= 4) && a17 <= 0) && a7 <= 0)) || ((a17 <= 0 && a20 == 1) && a21 <= 0)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a16 <= 4 && a20 == 1) && a17 == 1)) || ((a17 <= 0 && !(a20 == 1)) && 15 <= a8)) || (((14 <= a8 && a21 == 1) && a17 <= 0) && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a17 == 1)) || (a16 <= 5 && a21 <= 0)
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.5s, OverallIterations: 12, TraceHistogramMax: 7, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 851 SDtfs, 1447 SDslu, 68 SDs, 0 SdLazy, 4127 SolverSat, 636 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1003 GetRequests, 980 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2755occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1703 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 39 NumberOfFragments, 219 HoareAnnotationTreeSize, 3 FomulaSimplifications, 876 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 218 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 2787 NumberOfCodeBlocks, 2787 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2770 ConstructedInterpolants, 0 QuantifiedInterpolants, 915330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2081 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 17 InterpolantComputations, 12 PerfectInterpolantSequences, 2489/2504 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...