./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_12.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f62de5d75db0b2d49331dba44cec50cdc6b7f3c7cb3085015df6ef978c04ff42
.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 23:51:09,015 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:51:09,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:51:09,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:51:09,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:51:09,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:51:09,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:51:09,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:51:09,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:51:09,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:51:09,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:51:09,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:51:09,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:51:09,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:51:09,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:51:09,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:51:09,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:51:09,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:51:09,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:51:09,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:51:09,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:51:09,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:51:09,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:51:09,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:51:09,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:51:09,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:51:09,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:51:09,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:51:09,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:51:09,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:51:09,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:51:09,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:51:09,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:51:09,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:51:09,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:51:09,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:51:09,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:51:09,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:51:09,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:51:09,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:51:09,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:51:09,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 23:51:09,211 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:51:09,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:51:09,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:51:09,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:51:09,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:51:09,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:51:09,215 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:51:09,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:51:09,215 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-28 23:51:09,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:51:09,216 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-28 23:51:09,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:51:09,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 23:51:09,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 23:51:09,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 23:51:09,218 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-28 23:51:09,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 23:51:09,218 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:51:09,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-28 23:51:09,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:51:09,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:51:09,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-28 23:51:09,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:51:09,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:51:09,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 23:51:09,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 23:51:09,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:51:09,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 23:51:09,222 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-10-28 23:51:09,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 23:51:09,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 23:51:09,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:51:09,223 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_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f62de5d75db0b2d49331dba44cec50cdc6b7f3c7cb3085015df6ef978c04ff42
[2021-10-28 23:51:09,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:51:09,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:51:09,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:51:09,636 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:51:09,638 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:51:09,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/openssl-simplified/s3_srvr_12.cil.c
[2021-10-28 23:51:09,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/data/a15cc9f07/4e9e17052e0246d091172a745308af7a/FLAGcb746773f
[2021-10-28 23:51:10,399 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:51:10,415 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/sv-benchmarks/c/openssl-simplified/s3_srvr_12.cil.c
[2021-10-28 23:51:10,446 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/data/a15cc9f07/4e9e17052e0246d091172a745308af7a/FLAGcb746773f
[2021-10-28 23:51:10,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/data/a15cc9f07/4e9e17052e0246d091172a745308af7a
[2021-10-28 23:51:10,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:51:10,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 23:51:10,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:51:10,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:51:10,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:51:10,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:51:10" (1/1) ...
[2021-10-28 23:51:10,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb5ffbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:10, skipping insertion in model container
[2021-10-28 23:51:10,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:51:10" (1/1) ...
[2021-10-28 23:51:10,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:51:10,736 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:51:11,100 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/sv-benchmarks/c/openssl-simplified/s3_srvr_12.cil.c[49672,49685]
[2021-10-28 23:51:11,110 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:51:11,122 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:51:11,289 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/sv-benchmarks/c/openssl-simplified/s3_srvr_12.cil.c[49672,49685]
[2021-10-28 23:51:11,296 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:51:11,322 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:51:11,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11 WrapperNode
[2021-10-28 23:51:11,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:51:11,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 23:51:11,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 23:51:11,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 23:51:11,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 23:51:11,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:51:11,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:51:11,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:51:11,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:51:11,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:51:11,485 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:51:11,485 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:51:11,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (1/1) ...
[2021-10-28 23:51:11,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:51:11,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:51:11,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 23:51:11,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:51:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 23:51:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 23:51:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:51:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:51:11,834 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-10-28 23:51:12,682 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false;
[2021-10-28 23:51:12,682 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false;
[2021-10-28 23:51:12,695 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:51:12,696 INFO L299 CfgBuilder]: Removed 7 assume(true) statements.
[2021-10-28 23:51:12,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:51:12 BoogieIcfgContainer
[2021-10-28 23:51:12,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:51:12,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 23:51:12,702 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 23:51:12,707 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-28 23:51:12,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:51:10" (1/3) ...
[2021-10-28 23:51:12,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f6cbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:51:12, skipping insertion in model container
[2021-10-28 23:51:12,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:51:11" (2/3) ...
[2021-10-28 23:51:12,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f6cbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:51:12, skipping insertion in model container
[2021-10-28 23:51:12,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:51:12" (3/3) ...
[2021-10-28 23:51:12,712 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_12.cil.c
[2021-10-28 23:51:12,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 23:51:12,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-10-28 23:51:12,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 23:51:12,794 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-28 23:51:12,827 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-28 23:51:12,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 165 states have (on average 1.7636363636363637) internal successors, (291), 166 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-10-28 23:51:12,865 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:12,866 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:12,867 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:12,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1659372905, now seen corresponding path program 1 times
[2021-10-28 23:51:12,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:12,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617169739]
[2021-10-28 23:51:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:12,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:13,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:13,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:13,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617169739]
[2021-10-28 23:51:13,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617169739] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:13,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:13,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:13,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166076378]
[2021-10-28 23:51:13,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:13,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:13,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:13,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:13,273 INFO L87 Difference]: Start difference. First operand has 167 states, 165 states have (on average 1.7636363636363637) internal successors, (291), 166 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:13,645 INFO L93 Difference]: Finished difference Result 353 states and 613 transitions.
[2021-10-28 23:51:13,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:13,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28
[2021-10-28 23:51:13,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:13,664 INFO L225 Difference]: With dead ends: 353
[2021-10-28 23:51:13,664 INFO L226 Difference]: Without dead ends: 174
[2021-10-28 23:51:13,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:13,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states.
[2021-10-28 23:51:13,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172.
[2021-10-28 23:51:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.6198830409356726) internal successors, (277), 171 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 277 transitions.
[2021-10-28 23:51:13,758 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 277 transitions. Word has length 28
[2021-10-28 23:51:13,758 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:13,759 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 277 transitions.
[2021-10-28 23:51:13,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:13,759 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 277 transitions.
[2021-10-28 23:51:13,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-10-28 23:51:13,762 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:13,763 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:13,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 23:51:13,763 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:13,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:13,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1067837001, now seen corresponding path program 1 times
[2021-10-28 23:51:13,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:13,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773833761]
[2021-10-28 23:51:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:13,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:13,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:13,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773833761]
[2021-10-28 23:51:13,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773833761] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:13,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:13,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:13,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456287877]
[2021-10-28 23:51:13,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:13,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:13,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:13,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:13,884 INFO L87 Difference]: Start difference. First operand 172 states and 277 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:14,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:14,041 INFO L93 Difference]: Finished difference Result 358 states and 575 transitions.
[2021-10-28 23:51:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:14,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29
[2021-10-28 23:51:14,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:14,045 INFO L225 Difference]: With dead ends: 358
[2021-10-28 23:51:14,045 INFO L226 Difference]: Without dead ends: 194
[2021-10-28 23:51:14,047 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:14,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states.
[2021-10-28 23:51:14,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194.
[2021-10-28 23:51:14,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.5906735751295338) internal successors, (307), 193 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:14,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 307 transitions.
[2021-10-28 23:51:14,068 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 307 transitions. Word has length 29
[2021-10-28 23:51:14,068 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:14,069 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 307 transitions.
[2021-10-28 23:51:14,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:14,074 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 307 transitions.
[2021-10-28 23:51:14,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-10-28 23:51:14,075 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:14,076 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:14,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-28 23:51:14,076 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:14,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:14,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1369735938, now seen corresponding path program 1 times
[2021-10-28 23:51:14,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:14,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976894010]
[2021-10-28 23:51:14,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:14,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:14,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:14,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976894010]
[2021-10-28 23:51:14,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976894010] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:14,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:14,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:14,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177819402]
[2021-10-28 23:51:14,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:14,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:14,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:14,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:14,227 INFO L87 Difference]: Start difference. First operand 194 states and 307 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:14,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:14,421 INFO L93 Difference]: Finished difference Result 388 states and 616 transitions.
[2021-10-28 23:51:14,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:14,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29
[2021-10-28 23:51:14,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:14,427 INFO L225 Difference]: With dead ends: 388
[2021-10-28 23:51:14,427 INFO L226 Difference]: Without dead ends: 202
[2021-10-28 23:51:14,434 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2021-10-28 23:51:14,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 200.
[2021-10-28 23:51:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.5979899497487438) internal successors, (318), 199 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:14,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 318 transitions.
[2021-10-28 23:51:14,476 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 318 transitions. Word has length 29
[2021-10-28 23:51:14,476 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:14,476 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 318 transitions.
[2021-10-28 23:51:14,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:14,477 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 318 transitions.
[2021-10-28 23:51:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-10-28 23:51:14,478 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:14,479 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:14,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-28 23:51:14,479 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:14,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:14,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1614302654, now seen corresponding path program 1 times
[2021-10-28 23:51:14,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:14,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648528774]
[2021-10-28 23:51:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:14,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:14,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:14,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:14,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648528774]
[2021-10-28 23:51:14,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648528774] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:14,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:14,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:14,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954681078]
[2021-10-28 23:51:14,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:14,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:14,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:14,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:14,562 INFO L87 Difference]: Start difference. First operand 200 states and 318 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:14,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:14,748 INFO L93 Difference]: Finished difference Result 393 states and 626 transitions.
[2021-10-28 23:51:14,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:14,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29
[2021-10-28 23:51:14,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:14,751 INFO L225 Difference]: With dead ends: 393
[2021-10-28 23:51:14,752 INFO L226 Difference]: Without dead ends: 201
[2021-10-28 23:51:14,754 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:14,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states.
[2021-10-28 23:51:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201.
[2021-10-28 23:51:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.595) internal successors, (319), 200 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 319 transitions.
[2021-10-28 23:51:14,784 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 319 transitions. Word has length 29
[2021-10-28 23:51:14,784 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:14,785 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 319 transitions.
[2021-10-28 23:51:14,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 319 transitions.
[2021-10-28 23:51:14,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2021-10-28 23:51:14,792 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:14,792 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:14,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-28 23:51:14,793 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:14,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash -210698213, now seen corresponding path program 1 times
[2021-10-28 23:51:14,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:14,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502855273]
[2021-10-28 23:51:14,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:14,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:14,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:14,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502855273]
[2021-10-28 23:51:14,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502855273] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:14,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:14,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:14,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149202189]
[2021-10-28 23:51:14,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:14,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:14,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:14,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:14,898 INFO L87 Difference]: Start difference. First operand 201 states and 319 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:15,052 INFO L93 Difference]: Finished difference Result 404 states and 638 transitions.
[2021-10-28 23:51:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:15,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30
[2021-10-28 23:51:15,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:15,055 INFO L225 Difference]: With dead ends: 404
[2021-10-28 23:51:15,055 INFO L226 Difference]: Without dead ends: 211
[2021-10-28 23:51:15,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:15,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states.
[2021-10-28 23:51:15,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 201.
[2021-10-28 23:51:15,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.585) internal successors, (317), 200 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 317 transitions.
[2021-10-28 23:51:15,070 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 317 transitions. Word has length 30
[2021-10-28 23:51:15,070 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:15,071 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 317 transitions.
[2021-10-28 23:51:15,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 317 transitions.
[2021-10-28 23:51:15,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-10-28 23:51:15,077 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:15,077 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:15,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-28 23:51:15,077 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:15,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:15,078 INFO L85 PathProgramCache]: Analyzing trace with hash -852120702, now seen corresponding path program 1 times
[2021-10-28 23:51:15,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:15,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736010965]
[2021-10-28 23:51:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:15,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:15,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:15,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736010965]
[2021-10-28 23:51:15,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736010965] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:15,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:15,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:15,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610632662]
[2021-10-28 23:51:15,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:15,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:15,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:15,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:15,178 INFO L87 Difference]: Start difference. First operand 201 states and 317 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:15,317 INFO L93 Difference]: Finished difference Result 404 states and 634 transitions.
[2021-10-28 23:51:15,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:15,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31
[2021-10-28 23:51:15,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:15,320 INFO L225 Difference]: With dead ends: 404
[2021-10-28 23:51:15,320 INFO L226 Difference]: Without dead ends: 211
[2021-10-28 23:51:15,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states.
[2021-10-28 23:51:15,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 201.
[2021-10-28 23:51:15,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.575) internal successors, (315), 200 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 315 transitions.
[2021-10-28 23:51:15,334 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 315 transitions. Word has length 31
[2021-10-28 23:51:15,334 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:15,334 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 315 transitions.
[2021-10-28 23:51:15,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 315 transitions.
[2021-10-28 23:51:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2021-10-28 23:51:15,335 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:15,336 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:15,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-28 23:51:15,336 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:15,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1795373184, now seen corresponding path program 1 times
[2021-10-28 23:51:15,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:15,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395104673]
[2021-10-28 23:51:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:15,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:15,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:15,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:15,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395104673]
[2021-10-28 23:51:15,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395104673] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:15,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:15,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:15,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653692037]
[2021-10-28 23:51:15,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:15,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:15,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:15,400 INFO L87 Difference]: Start difference. First operand 201 states and 315 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:15,545 INFO L93 Difference]: Finished difference Result 404 states and 630 transitions.
[2021-10-28 23:51:15,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:15,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32
[2021-10-28 23:51:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:15,550 INFO L225 Difference]: With dead ends: 404
[2021-10-28 23:51:15,550 INFO L226 Difference]: Without dead ends: 211
[2021-10-28 23:51:15,552 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:15,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states.
[2021-10-28 23:51:15,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 201.
[2021-10-28 23:51:15,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.565) internal successors, (313), 200 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 313 transitions.
[2021-10-28 23:51:15,566 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 313 transitions. Word has length 32
[2021-10-28 23:51:15,566 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:15,566 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 313 transitions.
[2021-10-28 23:51:15,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,567 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 313 transitions.
[2021-10-28 23:51:15,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2021-10-28 23:51:15,567 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:15,568 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:15,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-10-28 23:51:15,568 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:15,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1439838815, now seen corresponding path program 1 times
[2021-10-28 23:51:15,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:15,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728450136]
[2021-10-28 23:51:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:15,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:15,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:15,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:15,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728450136]
[2021-10-28 23:51:15,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728450136] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:15,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:15,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 23:51:15,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315449238]
[2021-10-28 23:51:15,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 23:51:15,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:15,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:51:15,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:51:15,649 INFO L87 Difference]: Start difference. First operand 201 states and 313 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:15,934 INFO L93 Difference]: Finished difference Result 600 states and 930 transitions.
[2021-10-28 23:51:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 23:51:15,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32
[2021-10-28 23:51:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:15,939 INFO L225 Difference]: With dead ends: 600
[2021-10-28 23:51:15,939 INFO L226 Difference]: Without dead ends: 407
[2021-10-28 23:51:15,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:51:15,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states.
[2021-10-28 23:51:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 383.
[2021-10-28 23:51:15,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.557591623036649) internal successors, (595), 382 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 595 transitions.
[2021-10-28 23:51:15,984 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 595 transitions. Word has length 32
[2021-10-28 23:51:15,985 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:15,985 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 595 transitions.
[2021-10-28 23:51:15,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:15,985 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 595 transitions.
[2021-10-28 23:51:15,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2021-10-28 23:51:15,988 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:15,989 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:15,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-10-28 23:51:15,989 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:15,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:15,990 INFO L85 PathProgramCache]: Analyzing trace with hash -443745160, now seen corresponding path program 1 times
[2021-10-28 23:51:15,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:15,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180914683]
[2021-10-28 23:51:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:15,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:16,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:16,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:16,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180914683]
[2021-10-28 23:51:16,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180914683] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:16,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:16,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:16,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596822360]
[2021-10-28 23:51:16,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:16,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:16,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:16,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:16,089 INFO L87 Difference]: Start difference. First operand 383 states and 595 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:16,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:16,304 INFO L93 Difference]: Finished difference Result 842 states and 1324 transitions.
[2021-10-28 23:51:16,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:16,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44
[2021-10-28 23:51:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:16,313 INFO L225 Difference]: With dead ends: 842
[2021-10-28 23:51:16,313 INFO L226 Difference]: Without dead ends: 467
[2021-10-28 23:51:16,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:16,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states.
[2021-10-28 23:51:16,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 449.
[2021-10-28 23:51:16,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.5848214285714286) internal successors, (710), 448 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 710 transitions.
[2021-10-28 23:51:16,359 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 710 transitions. Word has length 44
[2021-10-28 23:51:16,361 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:16,363 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 710 transitions.
[2021-10-28 23:51:16,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:16,363 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 710 transitions.
[2021-10-28 23:51:16,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2021-10-28 23:51:16,364 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:16,365 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:16,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-10-28 23:51:16,365 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:16,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:16,366 INFO L85 PathProgramCache]: Analyzing trace with hash 974176282, now seen corresponding path program 1 times
[2021-10-28 23:51:16,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:16,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152710771]
[2021-10-28 23:51:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:16,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:16,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:16,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:16,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152710771]
[2021-10-28 23:51:16,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152710771] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:16,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:16,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:16,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827149496]
[2021-10-28 23:51:16,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:16,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:16,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:16,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:16,448 INFO L87 Difference]: Start difference. First operand 449 states and 710 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:16,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:16,658 INFO L93 Difference]: Finished difference Result 931 states and 1482 transitions.
[2021-10-28 23:51:16,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:16,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45
[2021-10-28 23:51:16,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:16,664 INFO L225 Difference]: With dead ends: 931
[2021-10-28 23:51:16,664 INFO L226 Difference]: Without dead ends: 490
[2021-10-28 23:51:16,665 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:16,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states.
[2021-10-28 23:51:16,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 472.
[2021-10-28 23:51:16,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.5987261146496816) internal successors, (753), 471 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 753 transitions.
[2021-10-28 23:51:16,697 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 753 transitions. Word has length 45
[2021-10-28 23:51:16,698 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:16,698 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 753 transitions.
[2021-10-28 23:51:16,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 753 transitions.
[2021-10-28 23:51:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2021-10-28 23:51:16,700 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:16,700 INFO L513 BasicCegarLoop]: trace histogram [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]
[2021-10-28 23:51:16,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-10-28 23:51:16,701 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:16,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1540899075, now seen corresponding path program 1 times
[2021-10-28 23:51:16,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:16,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630567823]
[2021-10-28 23:51:16,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:16,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:16,788 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-28 23:51:16,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:16,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630567823]
[2021-10-28 23:51:16,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630567823] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:16,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:16,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:16,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659594062]
[2021-10-28 23:51:16,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:16,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:16,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:16,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:16,791 INFO L87 Difference]: Start difference. First operand 472 states and 753 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:16,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:16,995 INFO L93 Difference]: Finished difference Result 988 states and 1578 transitions.
[2021-10-28 23:51:16,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:16,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2021-10-28 23:51:16,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:17,001 INFO L225 Difference]: With dead ends: 988
[2021-10-28 23:51:17,001 INFO L226 Difference]: Without dead ends: 524
[2021-10-28 23:51:17,003 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states.
[2021-10-28 23:51:17,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 506.
[2021-10-28 23:51:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.5920792079207922) internal successors, (804), 505 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:17,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 804 transitions.
[2021-10-28 23:51:17,046 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 804 transitions. Word has length 56
[2021-10-28 23:51:17,046 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:17,046 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 804 transitions.
[2021-10-28 23:51:17,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:17,047 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 804 transitions.
[2021-10-28 23:51:17,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2021-10-28 23:51:17,049 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:17,049 INFO L513 BasicCegarLoop]: trace histogram [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]
[2021-10-28 23:51:17,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2021-10-28 23:51:17,050 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:17,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1188180310, now seen corresponding path program 1 times
[2021-10-28 23:51:17,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:17,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221142944]
[2021-10-28 23:51:17,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:17,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-28 23:51:17,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:17,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221142944]
[2021-10-28 23:51:17,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221142944] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:17,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:17,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:17,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809505135]
[2021-10-28 23:51:17,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:17,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:17,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:17,115 INFO L87 Difference]: Start difference. First operand 506 states and 804 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:17,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:17,319 INFO L93 Difference]: Finished difference Result 1022 states and 1626 transitions.
[2021-10-28 23:51:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:17,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57
[2021-10-28 23:51:17,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:17,326 INFO L225 Difference]: With dead ends: 1022
[2021-10-28 23:51:17,327 INFO L226 Difference]: Without dead ends: 524
[2021-10-28 23:51:17,328 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:17,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states.
[2021-10-28 23:51:17,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 506.
[2021-10-28 23:51:17,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.5861386138613862) internal successors, (801), 505 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:17,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 801 transitions.
[2021-10-28 23:51:17,364 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 801 transitions. Word has length 57
[2021-10-28 23:51:17,364 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:17,365 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 801 transitions.
[2021-10-28 23:51:17,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:17,365 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 801 transitions.
[2021-10-28 23:51:17,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2021-10-28 23:51:17,367 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:17,367 INFO L513 BasicCegarLoop]: trace histogram [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]
[2021-10-28 23:51:17,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2021-10-28 23:51:17,368 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:17,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:17,369 INFO L85 PathProgramCache]: Analyzing trace with hash -2067348000, now seen corresponding path program 1 times
[2021-10-28 23:51:17,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:17,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979692477]
[2021-10-28 23:51:17,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:17,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-28 23:51:17,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:17,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979692477]
[2021-10-28 23:51:17,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979692477] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:17,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:17,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:17,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703695350]
[2021-10-28 23:51:17,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:17,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:17,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:17,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:17,420 INFO L87 Difference]: Start difference. First operand 506 states and 801 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:17,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:17,642 INFO L93 Difference]: Finished difference Result 1069 states and 1697 transitions.
[2021-10-28 23:51:17,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:17,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57
[2021-10-28 23:51:17,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:17,649 INFO L225 Difference]: With dead ends: 1069
[2021-10-28 23:51:17,649 INFO L226 Difference]: Without dead ends: 571
[2021-10-28 23:51:17,651 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states.
[2021-10-28 23:51:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 569.
[2021-10-28 23:51:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 568 states have (on average 1.5809859154929577) internal successors, (898), 568 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:17,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 898 transitions.
[2021-10-28 23:51:17,689 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 898 transitions. Word has length 57
[2021-10-28 23:51:17,691 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:17,691 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 898 transitions.
[2021-10-28 23:51:17,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:17,692 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 898 transitions.
[2021-10-28 23:51:17,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2021-10-28 23:51:17,694 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:17,694 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:17,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2021-10-28 23:51:17,695 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:17,695 INFO L85 PathProgramCache]: Analyzing trace with hash -583256949, now seen corresponding path program 1 times
[2021-10-28 23:51:17,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:17,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484630208]
[2021-10-28 23:51:17,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:17,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:17,757 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:17,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:17,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484630208]
[2021-10-28 23:51:17,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484630208] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:17,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:17,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:17,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732753992]
[2021-10-28 23:51:17,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:17,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:17,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:17,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:17,762 INFO L87 Difference]: Start difference. First operand 569 states and 898 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:17,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:17,987 INFO L93 Difference]: Finished difference Result 1179 states and 1859 transitions.
[2021-10-28 23:51:17,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:17,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79
[2021-10-28 23:51:17,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:17,994 INFO L225 Difference]: With dead ends: 1179
[2021-10-28 23:51:17,994 INFO L226 Difference]: Without dead ends: 618
[2021-10-28 23:51:17,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states.
[2021-10-28 23:51:18,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 612.
[2021-10-28 23:51:18,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 611 states have (on average 1.574468085106383) internal successors, (962), 611 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 962 transitions.
[2021-10-28 23:51:18,059 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 962 transitions. Word has length 79
[2021-10-28 23:51:18,060 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:18,060 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 962 transitions.
[2021-10-28 23:51:18,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 962 transitions.
[2021-10-28 23:51:18,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2021-10-28 23:51:18,067 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:18,067 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:18,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2021-10-28 23:51:18,068 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:18,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1357251849, now seen corresponding path program 1 times
[2021-10-28 23:51:18,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:18,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958625376]
[2021-10-28 23:51:18,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:18,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:18,128 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:51:18,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:18,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958625376]
[2021-10-28 23:51:18,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958625376] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:18,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:18,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:18,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602896179]
[2021-10-28 23:51:18,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:18,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:18,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:18,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:18,132 INFO L87 Difference]: Start difference. First operand 612 states and 962 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:18,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:18,347 INFO L93 Difference]: Finished difference Result 1222 states and 1920 transitions.
[2021-10-28 23:51:18,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:18,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80
[2021-10-28 23:51:18,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:18,353 INFO L225 Difference]: With dead ends: 1222
[2021-10-28 23:51:18,354 INFO L226 Difference]: Without dead ends: 618
[2021-10-28 23:51:18,357 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:18,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states.
[2021-10-28 23:51:18,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 612.
[2021-10-28 23:51:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 611 states have (on average 1.5695581014729951) internal successors, (959), 611 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:18,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 959 transitions.
[2021-10-28 23:51:18,399 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 959 transitions. Word has length 80
[2021-10-28 23:51:18,399 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:18,399 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 959 transitions.
[2021-10-28 23:51:18,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:18,400 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 959 transitions.
[2021-10-28 23:51:18,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2021-10-28 23:51:18,402 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:18,403 INFO L513 BasicCegarLoop]: trace histogram [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]
[2021-10-28 23:51:18,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2021-10-28 23:51:18,403 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:18,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:18,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2054627548, now seen corresponding path program 1 times
[2021-10-28 23:51:18,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:18,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418984349]
[2021-10-28 23:51:18,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:18,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:18,451 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:51:18,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:18,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418984349]
[2021-10-28 23:51:18,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418984349] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:18,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:18,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:18,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155961822]
[2021-10-28 23:51:18,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:18,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:18,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:18,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:18,457 INFO L87 Difference]: Start difference. First operand 612 states and 959 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:18,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:18,661 INFO L93 Difference]: Finished difference Result 1218 states and 1908 transitions.
[2021-10-28 23:51:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:18,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85
[2021-10-28 23:51:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:18,667 INFO L225 Difference]: With dead ends: 1218
[2021-10-28 23:51:18,668 INFO L226 Difference]: Without dead ends: 614
[2021-10-28 23:51:18,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:18,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states.
[2021-10-28 23:51:18,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 612.
[2021-10-28 23:51:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 611 states have (on average 1.5613747954173487) internal successors, (954), 611 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:18,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 954 transitions.
[2021-10-28 23:51:18,712 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 954 transitions. Word has length 85
[2021-10-28 23:51:18,712 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:18,712 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 954 transitions.
[2021-10-28 23:51:18,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 954 transitions.
[2021-10-28 23:51:18,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94
[2021-10-28 23:51:18,715 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:18,716 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2021-10-28 23:51:18,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2021-10-28 23:51:18,716 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1047765588, now seen corresponding path program 1 times
[2021-10-28 23:51:18,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:18,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98545533]
[2021-10-28 23:51:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:18,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2021-10-28 23:51:18,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:18,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98545533]
[2021-10-28 23:51:18,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98545533] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:18,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:18,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:18,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64128619]
[2021-10-28 23:51:18,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:18,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:18,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:18,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:18,765 INFO L87 Difference]: Start difference. First operand 612 states and 954 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:18,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:18,956 INFO L93 Difference]: Finished difference Result 1276 states and 1991 transitions.
[2021-10-28 23:51:18,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:18,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93
[2021-10-28 23:51:18,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:18,963 INFO L225 Difference]: With dead ends: 1276
[2021-10-28 23:51:18,963 INFO L226 Difference]: Without dead ends: 672
[2021-10-28 23:51:18,965 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states.
[2021-10-28 23:51:19,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 644.
[2021-10-28 23:51:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 1.5505443234836702) internal successors, (997), 643 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:19,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 997 transitions.
[2021-10-28 23:51:19,017 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 997 transitions. Word has length 93
[2021-10-28 23:51:19,018 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:19,018 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 997 transitions.
[2021-10-28 23:51:19,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:19,018 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 997 transitions.
[2021-10-28 23:51:19,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2021-10-28 23:51:19,021 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:19,021 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:19,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2021-10-28 23:51:19,022 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:19,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:19,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1111400187, now seen corresponding path program 1 times
[2021-10-28 23:51:19,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:19,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553824737]
[2021-10-28 23:51:19,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:19,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2021-10-28 23:51:19,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:19,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553824737]
[2021-10-28 23:51:19,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553824737] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:19,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:19,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:19,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479081236]
[2021-10-28 23:51:19,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:19,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:19,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:19,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:19,065 INFO L87 Difference]: Start difference. First operand 644 states and 997 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:19,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:19,258 INFO L93 Difference]: Finished difference Result 1308 states and 2028 transitions.
[2021-10-28 23:51:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:19,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94
[2021-10-28 23:51:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:19,264 INFO L225 Difference]: With dead ends: 1308
[2021-10-28 23:51:19,264 INFO L226 Difference]: Without dead ends: 672
[2021-10-28 23:51:19,266 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:19,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states.
[2021-10-28 23:51:19,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 644.
[2021-10-28 23:51:19,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 1.5412130637636081) internal successors, (991), 643 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:19,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 991 transitions.
[2021-10-28 23:51:19,307 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 991 transitions. Word has length 94
[2021-10-28 23:51:19,308 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:19,308 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 991 transitions.
[2021-10-28 23:51:19,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:19,308 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 991 transitions.
[2021-10-28 23:51:19,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2021-10-28 23:51:19,311 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:19,311 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:19,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2021-10-28 23:51:19,312 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:19,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:19,312 INFO L85 PathProgramCache]: Analyzing trace with hash -51700436, now seen corresponding path program 1 times
[2021-10-28 23:51:19,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:19,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114048914]
[2021-10-28 23:51:19,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:19,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:51:19,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:19,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114048914]
[2021-10-28 23:51:19,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114048914] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:19,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:19,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:19,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812346153]
[2021-10-28 23:51:19,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:19,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:19,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:19,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:19,354 INFO L87 Difference]: Start difference. First operand 644 states and 991 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:19,587 INFO L93 Difference]: Finished difference Result 1344 states and 2068 transitions.
[2021-10-28 23:51:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:19,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100
[2021-10-28 23:51:19,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:19,594 INFO L225 Difference]: With dead ends: 1344
[2021-10-28 23:51:19,594 INFO L226 Difference]: Without dead ends: 708
[2021-10-28 23:51:19,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:19,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states.
[2021-10-28 23:51:19,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 696.
[2021-10-28 23:51:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 695 states have (on average 1.5352517985611511) internal successors, (1067), 695 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1067 transitions.
[2021-10-28 23:51:19,642 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1067 transitions. Word has length 100
[2021-10-28 23:51:19,642 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:19,642 INFO L470 AbstractCegarLoop]: Abstraction has 696 states and 1067 transitions.
[2021-10-28 23:51:19,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:19,643 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1067 transitions.
[2021-10-28 23:51:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2021-10-28 23:51:19,646 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:19,646 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:19,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2021-10-28 23:51:19,647 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:19,647 INFO L85 PathProgramCache]: Analyzing trace with hash -530812530, now seen corresponding path program 1 times
[2021-10-28 23:51:19,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:19,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211801042]
[2021-10-28 23:51:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:19,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:19,699 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2021-10-28 23:51:19,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:19,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211801042]
[2021-10-28 23:51:19,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211801042] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:19,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:19,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:19,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207442100]
[2021-10-28 23:51:19,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:19,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:19,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:19,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:19,703 INFO L87 Difference]: Start difference. First operand 696 states and 1067 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:19,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:19,943 INFO L93 Difference]: Finished difference Result 1401 states and 2150 transitions.
[2021-10-28 23:51:19,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:19,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101
[2021-10-28 23:51:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:19,949 INFO L225 Difference]: With dead ends: 1401
[2021-10-28 23:51:19,950 INFO L226 Difference]: Without dead ends: 709
[2021-10-28 23:51:19,952 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states.
[2021-10-28 23:51:19,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 697.
[2021-10-28 23:51:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 1.5344827586206897) internal successors, (1068), 696 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:20,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1068 transitions.
[2021-10-28 23:51:20,002 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1068 transitions. Word has length 101
[2021-10-28 23:51:20,003 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:20,003 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 1068 transitions.
[2021-10-28 23:51:20,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1068 transitions.
[2021-10-28 23:51:20,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2021-10-28 23:51:20,006 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:20,007 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2021-10-28 23:51:20,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2021-10-28 23:51:20,007 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:20,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1306174224, now seen corresponding path program 1 times
[2021-10-28 23:51:20,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:20,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74779566]
[2021-10-28 23:51:20,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:20,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:20,060 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2021-10-28 23:51:20,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:20,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74779566]
[2021-10-28 23:51:20,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74779566] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:20,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:20,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:20,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960593839]
[2021-10-28 23:51:20,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:20,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:20,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:20,065 INFO L87 Difference]: Start difference. First operand 697 states and 1068 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:20,292 INFO L93 Difference]: Finished difference Result 1433 states and 2192 transitions.
[2021-10-28 23:51:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:20,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112
[2021-10-28 23:51:20,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:20,299 INFO L225 Difference]: With dead ends: 1433
[2021-10-28 23:51:20,299 INFO L226 Difference]: Without dead ends: 744
[2021-10-28 23:51:20,301 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:20,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states.
[2021-10-28 23:51:20,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 738.
[2021-10-28 23:51:20,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 737 states have (on average 1.5237449118046134) internal successors, (1123), 737 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:20,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1123 transitions.
[2021-10-28 23:51:20,355 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1123 transitions. Word has length 112
[2021-10-28 23:51:20,355 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:20,356 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1123 transitions.
[2021-10-28 23:51:20,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:20,356 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1123 transitions.
[2021-10-28 23:51:20,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2021-10-28 23:51:20,359 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:20,359 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2021-10-28 23:51:20,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2021-10-28 23:51:20,360 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:20,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:20,361 INFO L85 PathProgramCache]: Analyzing trace with hash -142977294, now seen corresponding path program 1 times
[2021-10-28 23:51:20,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:20,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847451797]
[2021-10-28 23:51:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:20,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:20,413 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2021-10-28 23:51:20,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:20,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847451797]
[2021-10-28 23:51:20,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847451797] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:20,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:20,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:20,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890921351]
[2021-10-28 23:51:20,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:20,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:20,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:20,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:20,417 INFO L87 Difference]: Start difference. First operand 738 states and 1123 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:20,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:20,673 INFO L93 Difference]: Finished difference Result 1474 states and 2242 transitions.
[2021-10-28 23:51:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:20,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113
[2021-10-28 23:51:20,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:20,681 INFO L225 Difference]: With dead ends: 1474
[2021-10-28 23:51:20,682 INFO L226 Difference]: Without dead ends: 744
[2021-10-28 23:51:20,684 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:20,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states.
[2021-10-28 23:51:20,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 738.
[2021-10-28 23:51:20,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 737 states have (on average 1.5169606512890095) internal successors, (1118), 737 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:20,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1118 transitions.
[2021-10-28 23:51:20,742 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1118 transitions. Word has length 113
[2021-10-28 23:51:20,742 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:20,742 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1118 transitions.
[2021-10-28 23:51:20,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:20,743 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1118 transitions.
[2021-10-28 23:51:20,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2021-10-28 23:51:20,746 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:20,746 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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]
[2021-10-28 23:51:20,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2021-10-28 23:51:20,747 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:20,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:20,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1809562376, now seen corresponding path program 1 times
[2021-10-28 23:51:20,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:20,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842404675]
[2021-10-28 23:51:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:20,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2021-10-28 23:51:20,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:20,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842404675]
[2021-10-28 23:51:20,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842404675] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:20,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:20,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:20,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153724287]
[2021-10-28 23:51:20,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:20,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:20,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:20,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:20,800 INFO L87 Difference]: Start difference. First operand 738 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:21,005 INFO L93 Difference]: Finished difference Result 1510 states and 2285 transitions.
[2021-10-28 23:51:21,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:21,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115
[2021-10-28 23:51:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:21,012 INFO L225 Difference]: With dead ends: 1510
[2021-10-28 23:51:21,013 INFO L226 Difference]: Without dead ends: 780
[2021-10-28 23:51:21,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:21,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states.
[2021-10-28 23:51:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 770.
[2021-10-28 23:51:21,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 769 states have (on average 1.5032509752925878) internal successors, (1156), 769 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1156 transitions.
[2021-10-28 23:51:21,072 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1156 transitions. Word has length 115
[2021-10-28 23:51:21,072 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:21,072 INFO L470 AbstractCegarLoop]: Abstraction has 770 states and 1156 transitions.
[2021-10-28 23:51:21,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1156 transitions.
[2021-10-28 23:51:21,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2021-10-28 23:51:21,076 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:21,076 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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]
[2021-10-28 23:51:21,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2021-10-28 23:51:21,077 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:21,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:21,077 INFO L85 PathProgramCache]: Analyzing trace with hash 172042817, now seen corresponding path program 1 times
[2021-10-28 23:51:21,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:21,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335031938]
[2021-10-28 23:51:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:21,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked.
[2021-10-28 23:51:21,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:21,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335031938]
[2021-10-28 23:51:21,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335031938] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:21,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:21,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:21,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881957899]
[2021-10-28 23:51:21,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:21,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:21,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:21,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:21,134 INFO L87 Difference]: Start difference. First operand 770 states and 1156 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:21,354 INFO L93 Difference]: Finished difference Result 1542 states and 2314 transitions.
[2021-10-28 23:51:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:21,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116
[2021-10-28 23:51:21,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:21,360 INFO L225 Difference]: With dead ends: 1542
[2021-10-28 23:51:21,360 INFO L226 Difference]: Without dead ends: 780
[2021-10-28 23:51:21,362 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:21,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states.
[2021-10-28 23:51:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 770.
[2021-10-28 23:51:21,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 769 states have (on average 1.4915474642392719) internal successors, (1147), 769 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1147 transitions.
[2021-10-28 23:51:21,413 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1147 transitions. Word has length 116
[2021-10-28 23:51:21,414 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:21,414 INFO L470 AbstractCegarLoop]: Abstraction has 770 states and 1147 transitions.
[2021-10-28 23:51:21,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1147 transitions.
[2021-10-28 23:51:21,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2021-10-28 23:51:21,417 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:21,418 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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]
[2021-10-28 23:51:21,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2021-10-28 23:51:21,418 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:21,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:21,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1961382768, now seen corresponding path program 1 times
[2021-10-28 23:51:21,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:21,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265551854]
[2021-10-28 23:51:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:21,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked.
[2021-10-28 23:51:21,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:21,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265551854]
[2021-10-28 23:51:21,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265551854] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:21,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:21,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:21,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931611152]
[2021-10-28 23:51:21,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:21,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:21,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:21,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:21,473 INFO L87 Difference]: Start difference. First operand 770 states and 1147 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:21,668 INFO L93 Difference]: Finished difference Result 1568 states and 2335 transitions.
[2021-10-28 23:51:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:21,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137
[2021-10-28 23:51:21,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:21,675 INFO L225 Difference]: With dead ends: 1568
[2021-10-28 23:51:21,675 INFO L226 Difference]: Without dead ends: 806
[2021-10-28 23:51:21,677 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:21,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states.
[2021-10-28 23:51:21,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 798.
[2021-10-28 23:51:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.478042659974906) internal successors, (1178), 797 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1178 transitions.
[2021-10-28 23:51:21,740 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1178 transitions. Word has length 137
[2021-10-28 23:51:21,741 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:21,741 INFO L470 AbstractCegarLoop]: Abstraction has 798 states and 1178 transitions.
[2021-10-28 23:51:21,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,742 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1178 transitions.
[2021-10-28 23:51:21,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2021-10-28 23:51:21,745 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:21,745 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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]
[2021-10-28 23:51:21,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2021-10-28 23:51:21,746 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:21,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:21,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1483046825, now seen corresponding path program 1 times
[2021-10-28 23:51:21,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:21,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306702256]
[2021-10-28 23:51:21,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:21,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:21,789 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked.
[2021-10-28 23:51:21,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:21,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306702256]
[2021-10-28 23:51:21,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306702256] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:21,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:21,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:21,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033800530]
[2021-10-28 23:51:21,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:21,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:21,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:21,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:21,793 INFO L87 Difference]: Start difference. First operand 798 states and 1178 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:21,978 INFO L93 Difference]: Finished difference Result 1596 states and 2356 transitions.
[2021-10-28 23:51:21,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:21,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138
[2021-10-28 23:51:21,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:21,985 INFO L225 Difference]: With dead ends: 1596
[2021-10-28 23:51:21,986 INFO L226 Difference]: Without dead ends: 806
[2021-10-28 23:51:21,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:21,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states.
[2021-10-28 23:51:22,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 798.
[2021-10-28 23:51:22,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.465495608531995) internal successors, (1168), 797 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:22,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1168 transitions.
[2021-10-28 23:51:22,071 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1168 transitions. Word has length 138
[2021-10-28 23:51:22,071 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:22,071 INFO L470 AbstractCegarLoop]: Abstraction has 798 states and 1168 transitions.
[2021-10-28 23:51:22,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1168 transitions.
[2021-10-28 23:51:22,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2021-10-28 23:51:22,075 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:22,075 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:51:22,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2021-10-28 23:51:22,076 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:22,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:22,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1313212300, now seen corresponding path program 1 times
[2021-10-28 23:51:22,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:22,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749923294]
[2021-10-28 23:51:22,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:22,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2021-10-28 23:51:22,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:22,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749923294]
[2021-10-28 23:51:22,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749923294] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:22,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:22,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:22,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977652061]
[2021-10-28 23:51:22,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:22,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:22,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:22,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:22,142 INFO L87 Difference]: Start difference. First operand 798 states and 1168 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:22,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:22,367 INFO L93 Difference]: Finished difference Result 1651 states and 2410 transitions.
[2021-10-28 23:51:22,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:22,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141
[2021-10-28 23:51:22,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:22,375 INFO L225 Difference]: With dead ends: 1651
[2021-10-28 23:51:22,375 INFO L226 Difference]: Without dead ends: 861
[2021-10-28 23:51:22,377 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states.
[2021-10-28 23:51:22,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 847.
[2021-10-28 23:51:22,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 846 states have (on average 1.4527186761229314) internal successors, (1229), 846 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:22,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1229 transitions.
[2021-10-28 23:51:22,439 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1229 transitions. Word has length 141
[2021-10-28 23:51:22,439 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:22,439 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1229 transitions.
[2021-10-28 23:51:22,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:22,440 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1229 transitions.
[2021-10-28 23:51:22,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2021-10-28 23:51:22,443 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:22,443 INFO L513 BasicCegarLoop]: trace histogram [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]
[2021-10-28 23:51:22,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2021-10-28 23:51:22,444 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:22,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:22,445 INFO L85 PathProgramCache]: Analyzing trace with hash 75909554, now seen corresponding path program 1 times
[2021-10-28 23:51:22,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:22,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130454570]
[2021-10-28 23:51:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:22,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2021-10-28 23:51:22,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:22,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130454570]
[2021-10-28 23:51:22,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130454570] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:22,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:22,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:22,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087476926]
[2021-10-28 23:51:22,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:22,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:22,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:22,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:22,515 INFO L87 Difference]: Start difference. First operand 847 states and 1229 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:22,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:22,730 INFO L93 Difference]: Finished difference Result 1700 states and 2468 transitions.
[2021-10-28 23:51:22,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:22,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142
[2021-10-28 23:51:22,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:22,739 INFO L225 Difference]: With dead ends: 1700
[2021-10-28 23:51:22,740 INFO L226 Difference]: Without dead ends: 845
[2021-10-28 23:51:22,741 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:22,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states.
[2021-10-28 23:51:22,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 831.
[2021-10-28 23:51:22,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 830 states have (on average 1.453012048192771) internal successors, (1206), 830 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1206 transitions.
[2021-10-28 23:51:22,824 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1206 transitions. Word has length 142
[2021-10-28 23:51:22,824 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:22,824 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1206 transitions.
[2021-10-28 23:51:22,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:22,825 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1206 transitions.
[2021-10-28 23:51:22,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2021-10-28 23:51:22,827 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:22,828 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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]
[2021-10-28 23:51:22,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2021-10-28 23:51:22,828 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:22,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2072592764, now seen corresponding path program 1 times
[2021-10-28 23:51:22,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:22,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347100674]
[2021-10-28 23:51:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:22,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:22,870 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked.
[2021-10-28 23:51:22,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:22,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347100674]
[2021-10-28 23:51:22,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347100674] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:22,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:22,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:22,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956365154]
[2021-10-28 23:51:22,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:22,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:22,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:22,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:22,874 INFO L87 Difference]: Start difference. First operand 831 states and 1206 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:23,069 INFO L93 Difference]: Finished difference Result 1666 states and 2418 transitions.
[2021-10-28 23:51:23,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:23,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146
[2021-10-28 23:51:23,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:23,075 INFO L225 Difference]: With dead ends: 1666
[2021-10-28 23:51:23,076 INFO L226 Difference]: Without dead ends: 843
[2021-10-28 23:51:23,079 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:23,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states.
[2021-10-28 23:51:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 831.
[2021-10-28 23:51:23,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 830 states have (on average 1.4445783132530121) internal successors, (1199), 830 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1199 transitions.
[2021-10-28 23:51:23,140 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1199 transitions. Word has length 146
[2021-10-28 23:51:23,140 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:23,141 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1199 transitions.
[2021-10-28 23:51:23,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,141 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1199 transitions.
[2021-10-28 23:51:23,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2021-10-28 23:51:23,144 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:23,144 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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]
[2021-10-28 23:51:23,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2021-10-28 23:51:23,145 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:23,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:23,146 INFO L85 PathProgramCache]: Analyzing trace with hash 369501830, now seen corresponding path program 1 times
[2021-10-28 23:51:23,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:23,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569956246]
[2021-10-28 23:51:23,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:23,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked.
[2021-10-28 23:51:23,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:23,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569956246]
[2021-10-28 23:51:23,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569956246] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:23,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:23,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:23,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106666665]
[2021-10-28 23:51:23,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:23,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:23,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:23,208 INFO L87 Difference]: Start difference. First operand 831 states and 1199 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:23,416 INFO L93 Difference]: Finished difference Result 1666 states and 2404 transitions.
[2021-10-28 23:51:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:23,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147
[2021-10-28 23:51:23,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:23,423 INFO L225 Difference]: With dead ends: 1666
[2021-10-28 23:51:23,424 INFO L226 Difference]: Without dead ends: 826
[2021-10-28 23:51:23,426 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:23,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states.
[2021-10-28 23:51:23,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 814.
[2021-10-28 23:51:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 1.4391143911439115) internal successors, (1170), 813 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1170 transitions.
[2021-10-28 23:51:23,489 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1170 transitions. Word has length 147
[2021-10-28 23:51:23,490 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:23,490 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 1170 transitions.
[2021-10-28 23:51:23,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1170 transitions.
[2021-10-28 23:51:23,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2021-10-28 23:51:23,493 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:23,494 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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]
[2021-10-28 23:51:23,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2021-10-28 23:51:23,494 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:23,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1770310156, now seen corresponding path program 1 times
[2021-10-28 23:51:23,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:23,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233939984]
[2021-10-28 23:51:23,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:23,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:23,568 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2021-10-28 23:51:23,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:23,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233939984]
[2021-10-28 23:51:23,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233939984] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:23,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:23,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:23,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336304852]
[2021-10-28 23:51:23,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:23,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:23,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:23,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:23,570 INFO L87 Difference]: Start difference. First operand 814 states and 1170 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:23,677 INFO L93 Difference]: Finished difference Result 2412 states and 3460 transitions.
[2021-10-28 23:51:23,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:23,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154
[2021-10-28 23:51:23,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:23,690 INFO L225 Difference]: With dead ends: 2412
[2021-10-28 23:51:23,690 INFO L226 Difference]: Without dead ends: 1606
[2021-10-28 23:51:23,692 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:23,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states.
[2021-10-28 23:51:23,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 816.
[2021-10-28 23:51:23,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 815 states have (on average 1.4380368098159508) internal successors, (1172), 815 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1172 transitions.
[2021-10-28 23:51:23,771 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1172 transitions. Word has length 154
[2021-10-28 23:51:23,771 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:23,771 INFO L470 AbstractCegarLoop]: Abstraction has 816 states and 1172 transitions.
[2021-10-28 23:51:23,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1172 transitions.
[2021-10-28 23:51:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2021-10-28 23:51:23,774 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:23,775 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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]
[2021-10-28 23:51:23,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2021-10-28 23:51:23,776 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:23,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:23,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1570716982, now seen corresponding path program 1 times
[2021-10-28 23:51:23,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:23,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965637835]
[2021-10-28 23:51:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:23,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked.
[2021-10-28 23:51:23,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:23,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965637835]
[2021-10-28 23:51:23,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965637835] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:23,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:23,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:23,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692353869]
[2021-10-28 23:51:23,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:23,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:23,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:23,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:23,849 INFO L87 Difference]: Start difference. First operand 816 states and 1172 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:23,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:23,971 INFO L93 Difference]: Finished difference Result 2411 states and 3456 transitions.
[2021-10-28 23:51:23,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:23,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154
[2021-10-28 23:51:23,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:23,984 INFO L225 Difference]: With dead ends: 2411
[2021-10-28 23:51:23,984 INFO L226 Difference]: Without dead ends: 1603
[2021-10-28 23:51:23,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:23,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states.
[2021-10-28 23:51:24,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1601.
[2021-10-28 23:51:24,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1600 states have (on average 1.4325) internal successors, (2292), 1600 states have internal predecessors, (2292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2292 transitions.
[2021-10-28 23:51:24,166 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2292 transitions. Word has length 154
[2021-10-28 23:51:24,167 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:24,167 INFO L470 AbstractCegarLoop]: Abstraction has 1601 states and 2292 transitions.
[2021-10-28 23:51:24,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2292 transitions.
[2021-10-28 23:51:24,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2021-10-28 23:51:24,171 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:24,172 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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]
[2021-10-28 23:51:24,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2021-10-28 23:51:24,172 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:24,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:24,173 INFO L85 PathProgramCache]: Analyzing trace with hash -362729202, now seen corresponding path program 1 times
[2021-10-28 23:51:24,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:24,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704238944]
[2021-10-28 23:51:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:24,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2021-10-28 23:51:24,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:24,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704238944]
[2021-10-28 23:51:24,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704238944] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:24,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:24,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:24,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996804714]
[2021-10-28 23:51:24,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:24,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:24,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:24,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:24,338 INFO L87 Difference]: Start difference. First operand 1601 states and 2292 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:24,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:24,585 INFO L93 Difference]: Finished difference Result 4747 states and 6780 transitions.
[2021-10-28 23:51:24,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:24,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156
[2021-10-28 23:51:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:24,610 INFO L225 Difference]: With dead ends: 4747
[2021-10-28 23:51:24,610 INFO L226 Difference]: Without dead ends: 3154
[2021-10-28 23:51:24,615 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:24,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states.
[2021-10-28 23:51:24,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 1601.
[2021-10-28 23:51:24,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1600 states have (on average 1.43) internal successors, (2288), 1600 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:24,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2288 transitions.
[2021-10-28 23:51:24,820 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2288 transitions. Word has length 156
[2021-10-28 23:51:24,821 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:24,821 INFO L470 AbstractCegarLoop]: Abstraction has 1601 states and 2288 transitions.
[2021-10-28 23:51:24,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:24,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2288 transitions.
[2021-10-28 23:51:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2021-10-28 23:51:24,825 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:24,826 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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]
[2021-10-28 23:51:24,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2021-10-28 23:51:24,826 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:24,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:24,827 INFO L85 PathProgramCache]: Analyzing trace with hash -957693967, now seen corresponding path program 1 times
[2021-10-28 23:51:24,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:24,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087707061]
[2021-10-28 23:51:24,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:24,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:51:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked.
[2021-10-28 23:51:24,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:51:24,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087707061]
[2021-10-28 23:51:24,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087707061] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:51:24,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:51:24,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:51:24,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336620835]
[2021-10-28 23:51:24,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-28 23:51:24,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:51:24,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:51:24,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:24,886 INFO L87 Difference]: Start difference. First operand 1601 states and 2288 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:25,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:51:25,197 INFO L93 Difference]: Finished difference Result 4783 states and 6836 transitions.
[2021-10-28 23:51:25,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:51:25,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157
[2021-10-28 23:51:25,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:51:25,232 INFO L225 Difference]: With dead ends: 4783
[2021-10-28 23:51:25,241 INFO L226 Difference]: Without dead ends: 3190
[2021-10-28 23:51:25,245 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:51:25,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states.
[2021-10-28 23:51:25,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 3188.
[2021-10-28 23:51:25,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 3187 states have (on average 1.4032005020395357) internal successors, (4472), 3187 states have internal predecessors, (4472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:25,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 4472 transitions.
[2021-10-28 23:51:25,548 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 4472 transitions. Word has length 157
[2021-10-28 23:51:25,548 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:51:25,549 INFO L470 AbstractCegarLoop]: Abstraction has 3188 states and 4472 transitions.
[2021-10-28 23:51:25,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:51:25,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 4472 transitions.
[2021-10-28 23:51:25,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2021-10-28 23:51:25,554 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:51:25,555 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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]
[2021-10-28 23:51:25,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2021-10-28 23:51:25,555 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:51:25,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:51:25,556 INFO L85 PathProgramCache]: Analyzing trace with hash -3753809, now seen corresponding path program 1 times
[2021-10-28 23:51:25,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:51:25,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158817610]
[2021-10-28 23:51:25,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:51:25,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:51:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:51:25,608 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:51:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:51:25,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:51:25,780 INFO L627 BasicCegarLoop]: Counterexample is feasible
[2021-10-28 23:51:25,782 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:51:25,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2021-10-28 23:51:25,788 INFO L731 BasicCegarLoop]: Path program 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]
[2021-10-28 23:51:25,794 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 23:51:25,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:51:25 BoogieIcfgContainer
[2021-10-28 23:51:25,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 23:51:25,992 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:51:25,992 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:51:25,992 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:51:25,993 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:51:12" (3/4) ...
[2021-10-28 23:51:25,996 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-28 23:51:26,185 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:51:26,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:51:26,187 INFO L168 Benchmark]: Toolchain (without parser) took 15528.05 ms. Allocated memory was 115.3 MB in the beginning and 222.3 MB in the end (delta: 107.0 MB). Free memory was 74.1 MB in the beginning and 68.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 16.1 GB.
[2021-10-28 23:51:26,188 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 115.3 MB. Free memory is still 90.7 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:51:26,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.03 ms. Allocated memory is still 115.3 MB. Free memory was 73.8 MB in the beginning and 84.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 23:51:26,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.65 ms. Allocated memory is still 115.3 MB. Free memory was 84.4 MB in the beginning and 81.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:51:26,190 INFO L168 Benchmark]: Boogie Preprocessor took 60.65 ms. Allocated memory is still 115.3 MB. Free memory was 81.4 MB in the beginning and 78.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:51:26,191 INFO L168 Benchmark]: RCFGBuilder took 1214.52 ms. Allocated memory is still 115.3 MB. Free memory was 78.9 MB in the beginning and 47.2 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB.
[2021-10-28 23:51:26,197 INFO L168 Benchmark]: TraceAbstraction took 13289.28 ms. Allocated memory was 115.3 MB in the beginning and 222.3 MB in the end (delta: 107.0 MB). Free memory was 46.7 MB in the beginning and 87.2 MB in the end (delta: -40.5 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.1 GB.
[2021-10-28 23:51:26,197 INFO L168 Benchmark]: Witness Printer took 193.79 ms. Allocated memory is still 222.3 MB. Free memory was 87.2 MB in the beginning and 68.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB.
[2021-10-28 23:51:26,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.41 ms. Allocated memory is still 115.3 MB. Free memory is still 90.7 MB. There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 661.03 ms. Allocated memory is still 115.3 MB. Free memory was 73.8 MB in the beginning and 84.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 98.65 ms. Allocated memory is still 115.3 MB. Free memory was 84.4 MB in the beginning and 81.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 60.65 ms. Allocated memory is still 115.3 MB. Free memory was 81.4 MB in the beginning and 78.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 1214.52 ms. Allocated memory is still 115.3 MB. Free memory was 78.9 MB in the beginning and 47.2 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 13289.28 ms. Allocated memory was 115.3 MB in the beginning and 222.3 MB in the end (delta: 107.0 MB). Free memory was 46.7 MB in the beginning and 87.2 MB in the end (delta: -40.5 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.1 GB.
* Witness Printer took 193.79 ms. Allocated memory is still 222.3 MB. Free memory was 87.2 MB in the beginning and 68.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 709]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L714] int s ;
[L715] int tmp ;
[L719] s = 8464
[L24] int s__info_callback = __VERIFIER_nondet_int() ;
[L25] int s__in_handshake = __VERIFIER_nondet_int() ;
[L26] int s__state ;
[L27] int s__new_session ;
[L28] int s__server ;
[L29] int s__version = __VERIFIER_nondet_int() ;
[L30] int s__type ;
[L31] int s__init_num ;
[L32] int s__hit = __VERIFIER_nondet_int() ;
[L33] int s__rwstate ;
[L34] int s__init_buf___0 = 1;
[L35] int s__debug = __VERIFIER_nondet_int() ;
[L36] int s__shutdown ;
[L37] int s__cert = __VERIFIER_nondet_int() ;
[L38] int s__options = __VERIFIER_nondet_int() ;
[L39] int s__verify_mode = __VERIFIER_nondet_int() ;
[L40] int s__session__peer = __VERIFIER_nondet_int() ;
[L41] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ;
[L42] int s__ctx__info_callback = __VERIFIER_nondet_int() ;
[L43] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ;
[L44] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ;
[L45] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ;
[L46] int s__s3__tmp__cert_request ;
[L47] int s__s3__tmp__reuse_message ;
[L48] int s__s3__tmp__use_rsa_tmp ;
[L49] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ;
[L50] int s__s3__tmp__new_cipher__algorithms ;
[L51] int s__s3__tmp__next_state___0 ;
[L52] int s__s3__tmp__new_cipher__algo_strength ;
[L53] int s__session__cipher ;
[L54] int buf ;
[L55] unsigned long l ;
[L56] unsigned long Time ;
[L57] unsigned long tmp ;
[L58] int cb ;
[L59] long num1 = __VERIFIER_nondet_long() ;
[L60] int ret ;
[L61] int new_state ;
[L62] int state ;
[L63] int skip ;
[L64] int got_new_session ;
[L65] int tmp___1 = __VERIFIER_nondet_int() ;
[L66] int tmp___2 = __VERIFIER_nondet_int() ;
[L67] int tmp___3 = __VERIFIER_nondet_int() ;
[L68] int tmp___4 = __VERIFIER_nondet_int() ;
[L69] int tmp___5 = __VERIFIER_nondet_int() ;
[L70] int tmp___6 = __VERIFIER_nondet_int() ;
[L71] int tmp___7 ;
[L72] long tmp___8 = __VERIFIER_nondet_long() ;
[L73] int tmp___9 = __VERIFIER_nondet_int() ;
[L74] int tmp___10 = __VERIFIER_nondet_int() ;
[L75] int blastFlag ;
[L76] int __cil_tmp55 ;
[L77] unsigned long __cil_tmp56 ;
[L78] unsigned long __cil_tmp57 ;
[L79] unsigned long __cil_tmp58 ;
[L80] unsigned long __cil_tmp59 ;
[L81] int __cil_tmp60 ;
[L82] unsigned long __cil_tmp61 = __VERIFIER_nondet_ulong() ;
[L86] s__state = initial_state
[L87] blastFlag = 0
[L88] tmp = __VERIFIER_nondet_int()
[L89] Time = tmp
[L90] cb = 0
[L91] ret = -1
[L92] skip = 0
[L93] got_new_session = 0
[L94] COND TRUE s__info_callback != 0
[L95] cb = s__info_callback
[L101] s__in_handshake ++
[L102] COND FALSE !(tmp___1 + 12288)
[L107] COND FALSE !(s__cert == 0)
[L111] COND TRUE 1
[L113] state = s__state
[L114] COND FALSE !(s__state == 12292)
[L117] COND FALSE !(s__state == 16384)
[L120] COND FALSE !(s__state == 8192)
[L123] COND FALSE !(s__state == 24576)
[L126] COND FALSE !(s__state == 8195)
[L129] COND FALSE !(s__state == 8480)
[L132] COND FALSE !(s__state == 8481)
[L135] COND FALSE !(s__state == 8482)
[L138] COND TRUE s__state == 8464
[L284] s__shutdown = 0
[L285] ret = __VERIFIER_nondet_int()
[L286] COND TRUE blastFlag == 0
[L287] blastFlag = 1
[L289] COND FALSE !(ret <= 0)
[L292] got_new_session = 1
[L293] s__state = 8496
[L294] s__init_num = 0
[L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int()
[L664] COND FALSE !(! s__s3__tmp__reuse_message)
[L698] skip = 0
[L111] COND TRUE 1
[L113] state = s__state
[L114] COND FALSE !(s__state == 12292)
[L117] COND FALSE !(s__state == 16384)
[L120] COND FALSE !(s__state == 8192)
[L123] COND FALSE !(s__state == 24576)
[L126] COND FALSE !(s__state == 8195)
[L129] COND FALSE !(s__state == 8480)
[L132] COND FALSE !(s__state == 8481)
[L135] COND FALSE !(s__state == 8482)
[L138] COND FALSE !(s__state == 8464)
[L141] COND FALSE !(s__state == 8465)
[L144] COND FALSE !(s__state == 8466)
[L147] COND TRUE s__state == 8496
[L298] ret = __VERIFIER_nondet_int()
[L299] COND TRUE blastFlag == 1
[L300] blastFlag = 2
[L302] COND FALSE !(ret <= 0)
[L305] COND FALSE !(\read(s__hit))
[L308] s__state = 8512
[L310] s__init_num = 0
[L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int()
[L664] COND FALSE !(! s__s3__tmp__reuse_message)
[L698] skip = 0
[L111] COND TRUE 1
[L113] state = s__state
[L114] COND FALSE !(s__state == 12292)
[L117] COND FALSE !(s__state == 16384)
[L120] COND FALSE !(s__state == 8192)
[L123] COND FALSE !(s__state == 24576)
[L126] COND FALSE !(s__state == 8195)
[L129] COND FALSE !(s__state == 8480)
[L132] COND FALSE !(s__state == 8481)
[L135] COND FALSE !(s__state == 8482)
[L138] COND FALSE !(s__state == 8464)
[L141] COND FALSE !(s__state == 8465)
[L144] COND FALSE !(s__state == 8466)
[L147] COND FALSE !(s__state == 8496)
[L150] COND FALSE !(s__state == 8497)
[L153] COND TRUE s__state == 8512
[L315] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int()
[L316] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms
[L317] COND TRUE __cil_tmp56 + 256UL
[L318] __cil_tmp56 = 256345
[L319] skip = 1
[L330] s__state = 8528
[L331] s__init_num = 0
[L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int()
[L664] COND FALSE !(! s__s3__tmp__reuse_message)
[L698] skip = 0
[L111] COND TRUE 1
[L113] state = s__state
[L114] COND FALSE !(s__state == 12292)
[L117] COND FALSE !(s__state == 16384)
[L120] COND FALSE !(s__state == 8192)
[L123] COND FALSE !(s__state == 24576)
[L126] COND FALSE !(s__state == 8195)
[L129] COND FALSE !(s__state == 8480)
[L132] COND FALSE !(s__state == 8481)
[L135] COND FALSE !(s__state == 8482)
[L138] COND FALSE !(s__state == 8464)
[L141] COND FALSE !(s__state == 8465)
[L144] COND FALSE !(s__state == 8466)
[L147] COND FALSE !(s__state == 8496)
[L150] COND FALSE !(s__state == 8497)
[L153] COND FALSE !(s__state == 8512)
[L156] COND FALSE !(s__state == 8513)
[L159] COND TRUE s__state == 8528
[L335] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int()
[L336] l = (unsigned long )s__s3__tmp__new_cipher__algorithms
[L338] __cil_tmp57 = (unsigned long )s__options
[L339] COND TRUE __cil_tmp57 + 2097152UL
[L340] s__s3__tmp__use_rsa_tmp = 1
[L345] COND TRUE \read(s__s3__tmp__use_rsa_tmp)
[L373] ret = __VERIFIER_nondet_int()
[L374] COND FALSE !(blastFlag == 3)
[L377] COND FALSE !(ret <= 0)
[L394] s__state = 8544
[L395] s__init_num = 0
[L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int()
[L664] COND FALSE !(! s__s3__tmp__reuse_message)
[L698] skip = 0
[L111] COND TRUE 1
[L113] state = s__state
[L114] COND FALSE !(s__state == 12292)
[L117] COND FALSE !(s__state == 16384)
[L120] COND FALSE !(s__state == 8192)
[L123] COND FALSE !(s__state == 24576)
[L126] COND FALSE !(s__state == 8195)
[L129] COND FALSE !(s__state == 8480)
[L132] COND FALSE !(s__state == 8481)
[L135] COND FALSE !(s__state == 8482)
[L138] COND FALSE !(s__state == 8464)
[L141] COND FALSE !(s__state == 8465)
[L144] COND FALSE !(s__state == 8466)
[L147] COND FALSE !(s__state == 8496)
[L150] COND FALSE !(s__state == 8497)
[L153] COND FALSE !(s__state == 8512)
[L156] COND FALSE !(s__state == 8513)
[L159] COND FALSE !(s__state == 8528)
[L162] COND FALSE !(s__state == 8529)
[L165] COND TRUE s__state == 8544
[L399] COND TRUE s__verify_mode + 1
[L400] COND TRUE s__session__peer != 0
[L401] COND TRUE s__verify_mode + 4
[L402] s__verify_mode = 123
[L403] skip = 1
[L404] s__s3__tmp__cert_request = 0
[L405] s__state = 8560
[L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int()
[L664] COND FALSE !(! s__s3__tmp__reuse_message)
[L698] skip = 0
[L111] COND TRUE 1
[L113] state = s__state
[L114] COND FALSE !(s__state == 12292)
[L117] COND FALSE !(s__state == 16384)
[L120] COND FALSE !(s__state == 8192)
[L123] COND FALSE !(s__state == 24576)
[L126] COND FALSE !(s__state == 8195)
[L129] COND FALSE !(s__state == 8480)
[L132] COND FALSE !(s__state == 8481)
[L135] COND FALSE !(s__state == 8482)
[L138] COND FALSE !(s__state == 8464)
[L141] COND FALSE !(s__state == 8465)
[L144] COND FALSE !(s__state == 8466)
[L147] COND FALSE !(s__state == 8496)
[L150] COND FALSE !(s__state == 8497)
[L153] COND FALSE !(s__state == 8512)
[L156] COND FALSE !(s__state == 8513)
[L159] COND FALSE !(s__state == 8528)
[L162] COND FALSE !(s__state == 8529)
[L165] COND FALSE !(s__state == 8544)
[L168] COND FALSE !(s__state == 8545)
[L171] COND TRUE s__state == 8560
[L449] ret = __VERIFIER_nondet_int()
[L450] COND FALSE !(ret <= 0)
[L453] s__s3__tmp__next_state___0 = 8576
[L454] s__state = 8448
[L455] s__init_num = 0
[L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int()
[L664] COND TRUE ! s__s3__tmp__reuse_message
[L665] COND TRUE ! skip
[L666] COND TRUE state == 8560
[L667] COND TRUE s__state == 8448
[L668] COND TRUE s__verify_mode != -1
[L669] COND TRUE s__verify_mode != -2
[L670] COND TRUE __cil_tmp61 != 9021
[L671] COND TRUE __cil_tmp58 != 4294967294
[L672] COND TRUE blastFlag != 4
[L673] COND TRUE tmp___7 != 1024
[L709] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 167 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.0s, OverallIterations: 35, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 7183 SDtfs, 6874 SDslu, 1823 SDs, 0 SdLazy, 2872 SolverSat, 1350 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3188occurred in iteration=34, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 34 MinimizatonAttempts, 2673 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 3216 NumberOfCodeBlocks, 3216 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 3025 ConstructedInterpolants, 0 QuantifiedInterpolants, 5479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 34 PerfectInterpolantSequences, 2752/2752 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 incorrect!
[2021-10-28 23:51:26,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cea20d55-fb32-4e78-b0ce-17bf48883631/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...