./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-3.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 53f42b1a
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF --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 95e3bac7f28ae020b684175cea363a5866905518c289fbd40a07a7a3764acade
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-53f42b1
[2021-11-20 07:23:03,170 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-20 07:23:03,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-20 07:23:03,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-20 07:23:03,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-20 07:23:03,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-20 07:23:03,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-20 07:23:03,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-20 07:23:03,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-20 07:23:03,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-20 07:23:03,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-20 07:23:03,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-20 07:23:03,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-20 07:23:03,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-20 07:23:03,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-20 07:23:03,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-20 07:23:03,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-20 07:23:03,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-20 07:23:03,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-20 07:23:03,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-20 07:23:03,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-20 07:23:03,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-20 07:23:03,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-20 07:23:03,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-20 07:23:03,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-20 07:23:03,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-20 07:23:03,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-20 07:23:03,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-20 07:23:03,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-20 07:23:03,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-20 07:23:03,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-20 07:23:03,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-20 07:23:03,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-20 07:23:03,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-20 07:23:03,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-20 07:23:03,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-20 07:23:03,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-20 07:23:03,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-20 07:23:03,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-20 07:23:03,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-20 07:23:03,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-20 07:23:03,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-20 07:23:03,397 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-20 07:23:03,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-20 07:23:03,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-20 07:23:03,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-20 07:23:03,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-20 07:23:03,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-20 07:23:03,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-20 07:23:03,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-20 07:23:03,410 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-20 07:23:03,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-20 07:23:03,411 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-20 07:23:03,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-20 07:23:03,412 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-20 07:23:03,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-20 07:23:03,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-20 07:23:03,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-20 07:23:03,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-20 07:23:03,413 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-20 07:23:03,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-20 07:23:03,414 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-20 07:23:03,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-20 07:23:03,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-20 07:23:03,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-20 07:23:03,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-20 07:23:03,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 07:23:03,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-20 07:23:03,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-20 07:23:03,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-20 07:23:03,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-20 07:23:03,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-20 07:23:03,419 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-20 07:23:03,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-20 07:23:03,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-20 07:23:03,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-20 07:23:03,420 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_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95e3bac7f28ae020b684175cea363a5866905518c289fbd40a07a7a3764acade
[2021-11-20 07:23:03,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-20 07:23:03,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-20 07:23:03,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-20 07:23:03,773 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-20 07:23:03,774 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-20 07:23:03,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/weaver/unroll-cond-3.wvr.c
[2021-11-20 07:23:03,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/data/e93c45bdd/42bcadc1e9a1407aa297d0b84e69e10d/FLAG2189dcc85
[2021-11-20 07:23:04,489 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-20 07:23:04,493 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c
[2021-11-20 07:23:04,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/data/e93c45bdd/42bcadc1e9a1407aa297d0b84e69e10d/FLAG2189dcc85
[2021-11-20 07:23:04,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/data/e93c45bdd/42bcadc1e9a1407aa297d0b84e69e10d
[2021-11-20 07:23:04,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-20 07:23:04,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-20 07:23:04,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-20 07:23:04,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-20 07:23:04,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-20 07:23:04,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:23:04" (1/1) ...
[2021-11-20 07:23:04,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e1ae9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:04, skipping insertion in model container
[2021-11-20 07:23:04,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:23:04" (1/1) ...
[2021-11-20 07:23:04,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-20 07:23:04,857 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-20 07:23:05,136 WARN L230 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_aa468780-5540-4c59-b914-6d86c092ccdc/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c[2641,2654]
[2021-11-20 07:23:05,145 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-11-20 07:23:05,153 INFO L203 MainTranslator]: Completed pre-run
[2021-11-20 07:23:05,178 WARN L230 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_aa468780-5540-4c59-b914-6d86c092ccdc/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c[2641,2654]
[2021-11-20 07:23:05,182 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-11-20 07:23:05,198 INFO L208 MainTranslator]: Completed translation
[2021-11-20 07:23:05,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05 WrapperNode
[2021-11-20 07:23:05,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-20 07:23:05,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-20 07:23:05,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-20 07:23:05,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-20 07:23:05,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,256 INFO L137 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 162
[2021-11-20 07:23:05,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-20 07:23:05,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-20 07:23:05,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-20 07:23:05,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-20 07:23:05,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-20 07:23:05,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-20 07:23:05,296 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-20 07:23:05,296 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-20 07:23:05,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (1/1) ...
[2021-11-20 07:23:05,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 07:23:05,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:23:05,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-20 07:23:05,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-20 07:23:05,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-20 07:23:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2021-11-20 07:23:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2021-11-20 07:23:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2021-11-20 07:23:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2021-11-20 07:23:05,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-20 07:23:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-20 07:23:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-11-20 07:23:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-11-20 07:23:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-20 07:23:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-20 07:23:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-11-20 07:23:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-20 07:23:05,401 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-11-20 07:23:05,502 INFO L236 CfgBuilder]: Building ICFG
[2021-11-20 07:23:05,506 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-20 07:23:05,838 INFO L277 CfgBuilder]: Performing block encoding
[2021-11-20 07:23:05,851 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-20 07:23:05,851 INFO L301 CfgBuilder]: Removed 3 assume(true) statements.
[2021-11-20 07:23:05,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:23:05 BoogieIcfgContainer
[2021-11-20 07:23:05,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-20 07:23:05,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-20 07:23:05,856 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-20 07:23:05,859 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-20 07:23:05,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:23:04" (1/3) ...
[2021-11-20 07:23:05,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff7b062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:23:05, skipping insertion in model container
[2021-11-20 07:23:05,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:05" (2/3) ...
[2021-11-20 07:23:05,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff7b062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:23:05, skipping insertion in model container
[2021-11-20 07:23:05,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:23:05" (3/3) ...
[2021-11-20 07:23:05,862 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.c
[2021-11-20 07:23:05,867 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-11-20 07:23:05,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-20 07:23:05,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-20 07:23:05,868 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-11-20 07:23:05,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:05,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,005 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,005 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,005 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,006 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,006 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,006 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,008 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,008 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,008 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,010 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,010 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,010 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,015 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,015 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,015 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,016 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,016 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,016 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,016 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,017 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,017 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,018 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,018 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,018 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,025 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,025 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,025 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,025 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,030 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,030 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,030 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,030 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,031 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,031 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,031 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,031 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,035 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,035 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,035 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,036 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,036 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,036 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,037 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,037 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,037 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,037 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,039 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,039 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,039 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,040 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,040 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,040 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,040 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,042 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,042 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,042 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,046 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,046 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,046 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,046 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,047 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,047 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,047 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,051 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,051 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,053 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:23:06,064 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2021-11-20 07:23:06,127 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-20 07:23:06,135 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
[2021-11-20 07:23:06,136 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-11-20 07:23:06,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 198 places, 209 transitions, 434 flow
[2021-11-20 07:23:06,369 INFO L129 PetriNetUnfolder]: 18/207 cut-off events.
[2021-11-20 07:23:06,370 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2021-11-20 07:23:06,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 207 events. 18/207 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 316 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place.
[2021-11-20 07:23:06,380 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 209 transitions, 434 flow
[2021-11-20 07:23:06,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 198 transitions, 408 flow
[2021-11-20 07:23:06,438 INFO L129 PetriNetUnfolder]: 16/182 cut-off events.
[2021-11-20 07:23:06,438 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2021-11-20 07:23:06,438 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:06,439 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:06,440 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:06,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:06,446 INFO L85 PathProgramCache]: Analyzing trace with hash -641401192, now seen corresponding path program 1 times
[2021-11-20 07:23:06,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:06,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724177189]
[2021-11-20 07:23:06,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:06,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:06,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:06,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:06,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724177189]
[2021-11-20 07:23:06,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724177189] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:06,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:06,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-20 07:23:06,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794587102]
[2021-11-20 07:23:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:06,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-20 07:23:06,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:06,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-20 07:23:06,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-20 07:23:06,889 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 209
[2021-11-20 07:23:06,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 198 transitions, 408 flow. Second operand has 2 states, 2 states have (on average 194.0) internal successors, (388), 2 states have internal predecessors, (388), 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)
[2021-11-20 07:23:06,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:06,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 209
[2021-11-20 07:23:06,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:06,963 INFO L129 PetriNetUnfolder]: 5/185 cut-off events.
[2021-11-20 07:23:06,964 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES.
[2021-11-20 07:23:06,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 185 events. 5/185 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 284 event pairs, 0 based on Foata normal form. 16/186 useless extension candidates. Maximal degree in co-relation 104. Up to 5 conditions per place.
[2021-11-20 07:23:06,968 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 4 selfloop transitions, 0 changer transitions 4/185 dead transitions.
[2021-11-20 07:23:06,968 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 185 transitions, 390 flow
[2021-11-20 07:23:06,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-20 07:23:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2021-11-20 07:23:06,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 399 transitions.
[2021-11-20 07:23:06,987 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9545454545454546
[2021-11-20 07:23:06,988 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 399 transitions.
[2021-11-20 07:23:06,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 399 transitions.
[2021-11-20 07:23:06,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:06,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 399 transitions.
[2021-11-20 07:23:07,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 199.5) internal successors, (399), 2 states have internal predecessors, (399), 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)
[2021-11-20 07:23:07,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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)
[2021-11-20 07:23:07,009 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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)
[2021-11-20 07:23:07,011 INFO L186 Difference]: Start difference. First operand has 187 places, 198 transitions, 408 flow. Second operand 2 states and 399 transitions.
[2021-11-20 07:23:07,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 185 transitions, 390 flow
[2021-11-20 07:23:07,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 185 transitions, 382 flow, removed 0 selfloop flow, removed 4 redundant places.
[2021-11-20 07:23:07,030 INFO L242 Difference]: Finished difference. Result has 184 places, 181 transitions, 366 flow
[2021-11-20 07:23:07,033 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=366, PETRI_PLACES=184, PETRI_TRANSITIONS=181}
[2021-11-20 07:23:07,038 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, -3 predicate places.
[2021-11-20 07:23:07,039 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 181 transitions, 366 flow
[2021-11-20 07:23:07,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 194.0) internal successors, (388), 2 states have internal predecessors, (388), 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)
[2021-11-20 07:23:07,040 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:07,040 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:07,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-20 07:23:07,041 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:07,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:07,042 INFO L85 PathProgramCache]: Analyzing trace with hash 317017016, now seen corresponding path program 1 times
[2021-11-20 07:23:07,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:07,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475233705]
[2021-11-20 07:23:07,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:07,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:07,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:07,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475233705]
[2021-11-20 07:23:07,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475233705] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:07,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:07,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-20 07:23:07,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877465485]
[2021-11-20 07:23:07,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:07,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-20 07:23:07,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:07,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-20 07:23:07,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-20 07:23:07,582 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 209
[2021-11-20 07:23:07,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 181 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 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)
[2021-11-20 07:23:07,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:07,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 209
[2021-11-20 07:23:07,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:07,910 INFO L129 PetriNetUnfolder]: 153/760 cut-off events.
[2021-11-20 07:23:07,911 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES.
[2021-11-20 07:23:07,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 760 events. 153/760 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3814 event pairs, 34 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 1026. Up to 164 conditions per place.
[2021-11-20 07:23:07,924 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 39 selfloop transitions, 7 changer transitions 0/202 dead transitions.
[2021-11-20 07:23:07,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 202 transitions, 502 flow
[2021-11-20 07:23:07,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-20 07:23:07,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2021-11-20 07:23:07,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 727 transitions.
[2021-11-20 07:23:07,932 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8696172248803827
[2021-11-20 07:23:07,932 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 727 transitions.
[2021-11-20 07:23:07,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 727 transitions.
[2021-11-20 07:23:07,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:07,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 727 transitions.
[2021-11-20 07:23:07,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 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)
[2021-11-20 07:23:07,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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)
[2021-11-20 07:23:07,947 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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)
[2021-11-20 07:23:07,947 INFO L186 Difference]: Start difference. First operand has 184 places, 181 transitions, 366 flow. Second operand 4 states and 727 transitions.
[2021-11-20 07:23:07,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 202 transitions, 502 flow
[2021-11-20 07:23:07,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 202 transitions, 502 flow, removed 0 selfloop flow, removed 0 redundant places.
[2021-11-20 07:23:07,962 INFO L242 Difference]: Finished difference. Result has 185 places, 187 transitions, 413 flow
[2021-11-20 07:23:07,963 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=413, PETRI_PLACES=185, PETRI_TRANSITIONS=187}
[2021-11-20 07:23:07,965 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, -2 predicate places.
[2021-11-20 07:23:07,965 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 187 transitions, 413 flow
[2021-11-20 07:23:07,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 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)
[2021-11-20 07:23:07,966 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:07,967 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:07,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-20 07:23:07,968 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:07,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:07,973 INFO L85 PathProgramCache]: Analyzing trace with hash -299465594, now seen corresponding path program 1 times
[2021-11-20 07:23:07,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:07,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103976656]
[2021-11-20 07:23:07,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:07,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:08,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:08,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103976656]
[2021-11-20 07:23:08,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103976656] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:08,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:08,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-20 07:23:08,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627025808]
[2021-11-20 07:23:08,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:08,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-20 07:23:08,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:08,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-20 07:23:08,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-20 07:23:08,265 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209
[2021-11-20 07:23:08,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 187 transitions, 413 flow. Second operand has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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)
[2021-11-20 07:23:08,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:08,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209
[2021-11-20 07:23:08,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:08,960 INFO L129 PetriNetUnfolder]: 355/1781 cut-off events.
[2021-11-20 07:23:08,961 INFO L130 PetriNetUnfolder]: For 193/195 co-relation queries the response was YES.
[2021-11-20 07:23:08,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2710 conditions, 1781 events. 355/1781 cut-off events. For 193/195 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 12993 event pairs, 127 based on Foata normal form. 8/1643 useless extension candidates. Maximal degree in co-relation 2704. Up to 366 conditions per place.
[2021-11-20 07:23:09,010 INFO L132 encePairwiseOnDemand]: 200/209 looper letters, 82 selfloop transitions, 7 changer transitions 0/242 dead transitions.
[2021-11-20 07:23:09,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 242 transitions, 770 flow
[2021-11-20 07:23:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-20 07:23:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2021-11-20 07:23:09,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1077 transitions.
[2021-11-20 07:23:09,016 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8588516746411483
[2021-11-20 07:23:09,016 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1077 transitions.
[2021-11-20 07:23:09,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1077 transitions.
[2021-11-20 07:23:09,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:09,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1077 transitions.
[2021-11-20 07:23:09,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 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)
[2021-11-20 07:23:09,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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)
[2021-11-20 07:23:09,029 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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)
[2021-11-20 07:23:09,029 INFO L186 Difference]: Start difference. First operand has 185 places, 187 transitions, 413 flow. Second operand 6 states and 1077 transitions.
[2021-11-20 07:23:09,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 242 transitions, 770 flow
[2021-11-20 07:23:09,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 242 transitions, 770 flow, removed 0 selfloop flow, removed 0 redundant places.
[2021-11-20 07:23:09,045 INFO L242 Difference]: Finished difference. Result has 193 places, 191 transitions, 461 flow
[2021-11-20 07:23:09,045 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=461, PETRI_PLACES=193, PETRI_TRANSITIONS=191}
[2021-11-20 07:23:09,048 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 6 predicate places.
[2021-11-20 07:23:09,049 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 191 transitions, 461 flow
[2021-11-20 07:23:09,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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)
[2021-11-20 07:23:09,050 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:09,051 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:09,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-20 07:23:09,051 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:09,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:09,053 INFO L85 PathProgramCache]: Analyzing trace with hash 781561804, now seen corresponding path program 2 times
[2021-11-20 07:23:09,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:09,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968815171]
[2021-11-20 07:23:09,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:09,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:09,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:09,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968815171]
[2021-11-20 07:23:09,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968815171] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:09,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:09,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-20 07:23:09,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869509247]
[2021-11-20 07:23:09,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:09,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-20 07:23:09,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:09,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-20 07:23:09,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-11-20 07:23:09,543 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 209
[2021-11-20 07:23:09,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 191 transitions, 461 flow. Second operand has 5 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 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)
[2021-11-20 07:23:09,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:09,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 209
[2021-11-20 07:23:09,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:09,920 INFO L129 PetriNetUnfolder]: 183/1122 cut-off events.
[2021-11-20 07:23:09,921 INFO L130 PetriNetUnfolder]: For 329/381 co-relation queries the response was YES.
[2021-11-20 07:23:09,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1778 conditions, 1122 events. 183/1122 cut-off events. For 329/381 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7694 event pairs, 101 based on Foata normal form. 49/1081 useless extension candidates. Maximal degree in co-relation 1768. Up to 243 conditions per place.
[2021-11-20 07:23:09,934 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 37 selfloop transitions, 11 changer transitions 3/208 dead transitions.
[2021-11-20 07:23:09,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 208 transitions, 623 flow
[2021-11-20 07:23:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-20 07:23:09,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2021-11-20 07:23:09,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 893 transitions.
[2021-11-20 07:23:09,939 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8545454545454545
[2021-11-20 07:23:09,939 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 893 transitions.
[2021-11-20 07:23:09,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 893 transitions.
[2021-11-20 07:23:09,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:09,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 893 transitions.
[2021-11-20 07:23:09,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 178.6) internal successors, (893), 5 states have internal predecessors, (893), 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)
[2021-11-20 07:23:09,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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)
[2021-11-20 07:23:09,950 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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)
[2021-11-20 07:23:09,950 INFO L186 Difference]: Start difference. First operand has 193 places, 191 transitions, 461 flow. Second operand 5 states and 893 transitions.
[2021-11-20 07:23:09,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 208 transitions, 623 flow
[2021-11-20 07:23:09,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 208 transitions, 615 flow, removed 1 selfloop flow, removed 2 redundant places.
[2021-11-20 07:23:09,960 INFO L242 Difference]: Finished difference. Result has 198 places, 192 transitions, 496 flow
[2021-11-20 07:23:09,961 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=496, PETRI_PLACES=198, PETRI_TRANSITIONS=192}
[2021-11-20 07:23:09,962 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 11 predicate places.
[2021-11-20 07:23:09,962 INFO L470 AbstractCegarLoop]: Abstraction has has 198 places, 192 transitions, 496 flow
[2021-11-20 07:23:09,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 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)
[2021-11-20 07:23:09,963 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:09,964 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:09,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-11-20 07:23:09,964 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:09,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:09,965 INFO L85 PathProgramCache]: Analyzing trace with hash -119616610, now seen corresponding path program 1 times
[2021-11-20 07:23:09,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:09,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245684644]
[2021-11-20 07:23:09,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:09,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:10,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:10,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:10,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245684644]
[2021-11-20 07:23:10,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245684644] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:10,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:10,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-20 07:23:10,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352873858]
[2021-11-20 07:23:10,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:10,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-20 07:23:10,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:10,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-20 07:23:10,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2021-11-20 07:23:10,320 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209
[2021-11-20 07:23:10,323 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 192 transitions, 496 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2021-11-20 07:23:10,323 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:10,323 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209
[2021-11-20 07:23:10,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:10,818 INFO L129 PetriNetUnfolder]: 373/1941 cut-off events.
[2021-11-20 07:23:10,818 INFO L130 PetriNetUnfolder]: For 807/819 co-relation queries the response was YES.
[2021-11-20 07:23:10,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3340 conditions, 1941 events. 373/1941 cut-off events. For 807/819 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 14729 event pairs, 168 based on Foata normal form. 14/1822 useless extension candidates. Maximal degree in co-relation 3327. Up to 352 conditions per place.
[2021-11-20 07:23:10,839 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 80 selfloop transitions, 13 changer transitions 2/248 dead transitions.
[2021-11-20 07:23:10,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 248 transitions, 935 flow
[2021-11-20 07:23:10,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-20 07:23:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2021-11-20 07:23:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1082 transitions.
[2021-11-20 07:23:10,844 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8628389154704944
[2021-11-20 07:23:10,846 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1082 transitions.
[2021-11-20 07:23:10,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1082 transitions.
[2021-11-20 07:23:10,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:10,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1082 transitions.
[2021-11-20 07:23:10,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.33333333333334) internal successors, (1082), 6 states have internal predecessors, (1082), 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)
[2021-11-20 07:23:10,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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)
[2021-11-20 07:23:10,858 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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)
[2021-11-20 07:23:10,858 INFO L186 Difference]: Start difference. First operand has 198 places, 192 transitions, 496 flow. Second operand 6 states and 1082 transitions.
[2021-11-20 07:23:10,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 248 transitions, 935 flow
[2021-11-20 07:23:10,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 248 transitions, 920 flow, removed 0 selfloop flow, removed 1 redundant places.
[2021-11-20 07:23:10,872 INFO L242 Difference]: Finished difference. Result has 206 places, 200 transitions, 609 flow
[2021-11-20 07:23:10,873 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=609, PETRI_PLACES=206, PETRI_TRANSITIONS=200}
[2021-11-20 07:23:10,874 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 19 predicate places.
[2021-11-20 07:23:10,875 INFO L470 AbstractCegarLoop]: Abstraction has has 206 places, 200 transitions, 609 flow
[2021-11-20 07:23:10,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2021-11-20 07:23:10,876 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:10,876 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:10,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-11-20 07:23:10,877 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:10,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:10,878 INFO L85 PathProgramCache]: Analyzing trace with hash 527597564, now seen corresponding path program 2 times
[2021-11-20 07:23:10,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:10,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810231667]
[2021-11-20 07:23:10,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:10,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:11,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:11,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810231667]
[2021-11-20 07:23:11,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810231667] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:11,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:11,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-20 07:23:11,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622320884]
[2021-11-20 07:23:11,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:11,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-20 07:23:11,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:11,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-20 07:23:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-20 07:23:11,154 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209
[2021-11-20 07:23:11,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 200 transitions, 609 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2021-11-20 07:23:11,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:11,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209
[2021-11-20 07:23:11,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:11,730 INFO L129 PetriNetUnfolder]: 394/2019 cut-off events.
[2021-11-20 07:23:11,731 INFO L130 PetriNetUnfolder]: For 1472/1474 co-relation queries the response was YES.
[2021-11-20 07:23:11,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3708 conditions, 2019 events. 394/2019 cut-off events. For 1472/1474 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 15554 event pairs, 195 based on Foata normal form. 10/1894 useless extension candidates. Maximal degree in co-relation 3691. Up to 465 conditions per place.
[2021-11-20 07:23:11,752 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 62 selfloop transitions, 18 changer transitions 0/233 dead transitions.
[2021-11-20 07:23:11,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 233 transitions, 912 flow
[2021-11-20 07:23:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-20 07:23:11,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2021-11-20 07:23:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1064 transitions.
[2021-11-20 07:23:11,757 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8484848484848485
[2021-11-20 07:23:11,757 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1064 transitions.
[2021-11-20 07:23:11,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1064 transitions.
[2021-11-20 07:23:11,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:11,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1064 transitions.
[2021-11-20 07:23:11,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.33333333333334) internal successors, (1064), 6 states have internal predecessors, (1064), 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)
[2021-11-20 07:23:11,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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)
[2021-11-20 07:23:11,768 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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)
[2021-11-20 07:23:11,768 INFO L186 Difference]: Start difference. First operand has 206 places, 200 transitions, 609 flow. Second operand 6 states and 1064 transitions.
[2021-11-20 07:23:11,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 233 transitions, 912 flow
[2021-11-20 07:23:11,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 233 transitions, 889 flow, removed 6 selfloop flow, removed 2 redundant places.
[2021-11-20 07:23:11,785 INFO L242 Difference]: Finished difference. Result has 211 places, 204 transitions, 682 flow
[2021-11-20 07:23:11,786 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=682, PETRI_PLACES=211, PETRI_TRANSITIONS=204}
[2021-11-20 07:23:11,787 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 24 predicate places.
[2021-11-20 07:23:11,788 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 204 transitions, 682 flow
[2021-11-20 07:23:11,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2021-11-20 07:23:11,789 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:11,789 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:11,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-11-20 07:23:11,790 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:11,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:11,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1665551690, now seen corresponding path program 3 times
[2021-11-20 07:23:11,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:11,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536942277]
[2021-11-20 07:23:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:11,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:12,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:12,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536942277]
[2021-11-20 07:23:12,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536942277] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:12,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:12,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-20 07:23:12,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389397205]
[2021-11-20 07:23:12,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:12,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-20 07:23:12,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:12,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-20 07:23:12,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2021-11-20 07:23:12,015 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209
[2021-11-20 07:23:12,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 204 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2021-11-20 07:23:12,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:12,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209
[2021-11-20 07:23:12,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:12,755 INFO L129 PetriNetUnfolder]: 465/2340 cut-off events.
[2021-11-20 07:23:12,755 INFO L130 PetriNetUnfolder]: For 2549/2551 co-relation queries the response was YES.
[2021-11-20 07:23:12,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4415 conditions, 2340 events. 465/2340 cut-off events. For 2549/2551 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18640 event pairs, 201 based on Foata normal form. 7/2198 useless extension candidates. Maximal degree in co-relation 4396. Up to 410 conditions per place.
[2021-11-20 07:23:12,783 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 74 selfloop transitions, 20 changer transitions 0/247 dead transitions.
[2021-11-20 07:23:12,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 247 transitions, 1066 flow
[2021-11-20 07:23:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-20 07:23:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-20 07:23:12,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1241 transitions.
[2021-11-20 07:23:12,789 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.848257006151743
[2021-11-20 07:23:12,789 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1241 transitions.
[2021-11-20 07:23:12,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1241 transitions.
[2021-11-20 07:23:12,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:12,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1241 transitions.
[2021-11-20 07:23:12,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 177.28571428571428) internal successors, (1241), 7 states have internal predecessors, (1241), 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)
[2021-11-20 07:23:12,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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)
[2021-11-20 07:23:12,800 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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)
[2021-11-20 07:23:12,801 INFO L186 Difference]: Start difference. First operand has 211 places, 204 transitions, 682 flow. Second operand 7 states and 1241 transitions.
[2021-11-20 07:23:12,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 247 transitions, 1066 flow
[2021-11-20 07:23:12,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 247 transitions, 1032 flow, removed 1 selfloop flow, removed 3 redundant places.
[2021-11-20 07:23:12,819 INFO L242 Difference]: Finished difference. Result has 216 places, 206 transitions, 721 flow
[2021-11-20 07:23:12,820 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=721, PETRI_PLACES=216, PETRI_TRANSITIONS=206}
[2021-11-20 07:23:12,821 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 29 predicate places.
[2021-11-20 07:23:12,821 INFO L470 AbstractCegarLoop]: Abstraction has has 216 places, 206 transitions, 721 flow
[2021-11-20 07:23:12,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2021-11-20 07:23:12,823 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:12,823 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:12,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-11-20 07:23:12,824 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash 21117964, now seen corresponding path program 4 times
[2021-11-20 07:23:12,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:12,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731315614]
[2021-11-20 07:23:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:12,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:12,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:12,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731315614]
[2021-11-20 07:23:12,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731315614] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:12,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:12,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-20 07:23:12,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879176187]
[2021-11-20 07:23:12,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:12,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-20 07:23:12,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:12,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-20 07:23:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-20 07:23:12,990 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209
[2021-11-20 07:23:12,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 206 transitions, 721 flow. Second operand has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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)
[2021-11-20 07:23:12,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:12,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209
[2021-11-20 07:23:12,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:13,511 INFO L129 PetriNetUnfolder]: 447/2285 cut-off events.
[2021-11-20 07:23:13,512 INFO L130 PetriNetUnfolder]: For 2796/2798 co-relation queries the response was YES.
[2021-11-20 07:23:13,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4428 conditions, 2285 events. 447/2285 cut-off events. For 2796/2798 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18098 event pairs, 190 based on Foata normal form. 2/2130 useless extension candidates. Maximal degree in co-relation 4407. Up to 414 conditions per place.
[2021-11-20 07:23:13,541 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 75 selfloop transitions, 18 changer transitions 0/246 dead transitions.
[2021-11-20 07:23:13,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 246 transitions, 1096 flow
[2021-11-20 07:23:13,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-20 07:23:13,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2021-11-20 07:23:13,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 904 transitions.
[2021-11-20 07:23:13,545 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8650717703349282
[2021-11-20 07:23:13,546 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 904 transitions.
[2021-11-20 07:23:13,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 904 transitions.
[2021-11-20 07:23:13,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:13,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 904 transitions.
[2021-11-20 07:23:13,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 180.8) internal successors, (904), 5 states have internal predecessors, (904), 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)
[2021-11-20 07:23:13,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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)
[2021-11-20 07:23:13,554 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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)
[2021-11-20 07:23:13,555 INFO L186 Difference]: Start difference. First operand has 216 places, 206 transitions, 721 flow. Second operand 5 states and 904 transitions.
[2021-11-20 07:23:13,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 246 transitions, 1096 flow
[2021-11-20 07:23:13,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 246 transitions, 1044 flow, removed 5 selfloop flow, removed 4 redundant places.
[2021-11-20 07:23:13,579 INFO L242 Difference]: Finished difference. Result has 218 places, 208 transitions, 760 flow
[2021-11-20 07:23:13,579 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=760, PETRI_PLACES=218, PETRI_TRANSITIONS=208}
[2021-11-20 07:23:13,580 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 31 predicate places.
[2021-11-20 07:23:13,580 INFO L470 AbstractCegarLoop]: Abstraction has has 218 places, 208 transitions, 760 flow
[2021-11-20 07:23:13,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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)
[2021-11-20 07:23:13,581 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:13,582 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:13,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-11-20 07:23:13,582 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:13,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:13,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1070521520, now seen corresponding path program 5 times
[2021-11-20 07:23:13,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:13,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99068075]
[2021-11-20 07:23:13,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:13,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:13,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:13,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:13,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99068075]
[2021-11-20 07:23:13,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99068075] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:13,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:13,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-20 07:23:13,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785077041]
[2021-11-20 07:23:13,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:13,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-20 07:23:13,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:13,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-20 07:23:13,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-20 07:23:13,691 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209
[2021-11-20 07:23:13,692 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 208 transitions, 760 flow. Second operand has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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)
[2021-11-20 07:23:13,692 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:13,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209
[2021-11-20 07:23:13,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:14,180 INFO L129 PetriNetUnfolder]: 458/2294 cut-off events.
[2021-11-20 07:23:14,180 INFO L130 PetriNetUnfolder]: For 2983/2986 co-relation queries the response was YES.
[2021-11-20 07:23:14,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4454 conditions, 2294 events. 458/2294 cut-off events. For 2983/2986 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 18005 event pairs, 236 based on Foata normal form. 4/2140 useless extension candidates. Maximal degree in co-relation 4431. Up to 607 conditions per place.
[2021-11-20 07:23:14,213 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 64 selfloop transitions, 22 changer transitions 0/239 dead transitions.
[2021-11-20 07:23:14,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 239 transitions, 1103 flow
[2021-11-20 07:23:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-20 07:23:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2021-11-20 07:23:14,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 895 transitions.
[2021-11-20 07:23:14,217 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8564593301435407
[2021-11-20 07:23:14,218 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 895 transitions.
[2021-11-20 07:23:14,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 895 transitions.
[2021-11-20 07:23:14,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:14,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 895 transitions.
[2021-11-20 07:23:14,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 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)
[2021-11-20 07:23:14,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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)
[2021-11-20 07:23:14,226 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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)
[2021-11-20 07:23:14,227 INFO L186 Difference]: Start difference. First operand has 218 places, 208 transitions, 760 flow. Second operand 5 states and 895 transitions.
[2021-11-20 07:23:14,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 239 transitions, 1103 flow
[2021-11-20 07:23:14,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 239 transitions, 1066 flow, removed 4 selfloop flow, removed 2 redundant places.
[2021-11-20 07:23:14,249 INFO L242 Difference]: Finished difference. Result has 223 places, 216 transitions, 893 flow
[2021-11-20 07:23:14,250 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=893, PETRI_PLACES=223, PETRI_TRANSITIONS=216}
[2021-11-20 07:23:14,251 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 36 predicate places.
[2021-11-20 07:23:14,251 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 216 transitions, 893 flow
[2021-11-20 07:23:14,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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)
[2021-11-20 07:23:14,252 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:14,253 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:14,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-11-20 07:23:14,253 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:14,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:14,254 INFO L85 PathProgramCache]: Analyzing trace with hash 486915966, now seen corresponding path program 6 times
[2021-11-20 07:23:14,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:14,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126681350]
[2021-11-20 07:23:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:14,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:14,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:14,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126681350]
[2021-11-20 07:23:14,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126681350] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:14,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:23:14,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-20 07:23:14,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077874890]
[2021-11-20 07:23:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:14,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-20 07:23:14,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:14,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-20 07:23:14,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-20 07:23:14,532 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209
[2021-11-20 07:23:14,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 216 transitions, 893 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2021-11-20 07:23:14,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:14,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209
[2021-11-20 07:23:14,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:15,110 INFO L129 PetriNetUnfolder]: 444/2213 cut-off events.
[2021-11-20 07:23:15,111 INFO L130 PetriNetUnfolder]: For 3403/3405 co-relation queries the response was YES.
[2021-11-20 07:23:15,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4364 conditions, 2213 events. 444/2213 cut-off events. For 3403/3405 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 17196 event pairs, 221 based on Foata normal form. 10/2076 useless extension candidates. Maximal degree in co-relation 4338. Up to 563 conditions per place.
[2021-11-20 07:23:15,141 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 69 selfloop transitions, 24 changer transitions 0/246 dead transitions.
[2021-11-20 07:23:15,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 246 transitions, 1190 flow
[2021-11-20 07:23:15,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-20 07:23:15,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2021-11-20 07:23:15,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1070 transitions.
[2021-11-20 07:23:15,146 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8532695374800638
[2021-11-20 07:23:15,146 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1070 transitions.
[2021-11-20 07:23:15,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1070 transitions.
[2021-11-20 07:23:15,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:15,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1070 transitions.
[2021-11-20 07:23:15,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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)
[2021-11-20 07:23:15,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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)
[2021-11-20 07:23:15,155 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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)
[2021-11-20 07:23:15,155 INFO L186 Difference]: Start difference. First operand has 223 places, 216 transitions, 893 flow. Second operand 6 states and 1070 transitions.
[2021-11-20 07:23:15,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 246 transitions, 1190 flow
[2021-11-20 07:23:15,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 246 transitions, 1150 flow, removed 12 selfloop flow, removed 1 redundant places.
[2021-11-20 07:23:15,178 INFO L242 Difference]: Finished difference. Result has 230 places, 219 transitions, 964 flow
[2021-11-20 07:23:15,179 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=964, PETRI_PLACES=230, PETRI_TRANSITIONS=219}
[2021-11-20 07:23:15,181 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 43 predicate places.
[2021-11-20 07:23:15,181 INFO L470 AbstractCegarLoop]: Abstraction has has 230 places, 219 transitions, 964 flow
[2021-11-20 07:23:15,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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)
[2021-11-20 07:23:15,182 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:15,182 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:15,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-11-20 07:23:15,183 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:15,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:15,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1410643597, now seen corresponding path program 1 times
[2021-11-20 07:23:15,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:15,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995334327]
[2021-11-20 07:23:15,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:15,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:15,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:15,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:15,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995334327]
[2021-11-20 07:23:15,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995334327] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-20 07:23:15,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534353625]
[2021-11-20 07:23:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:15,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:23:15,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:23:15,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-20 07:23:15,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-20 07:23:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:15,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 27 conjunts are in the unsatisfiable core
[2021-11-20 07:23:15,636 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:23:16,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2021-11-20 07:23:16,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:16,915 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-20 07:23:17,139 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size
[2021-11-20 07:23:17,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11
[2021-11-20 07:23:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:17,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534353625] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-20 07:23:17,391 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-20 07:23:17,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 9] total 23
[2021-11-20 07:23:17,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261541921]
[2021-11-20 07:23:17,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-20 07:23:17,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2021-11-20 07:23:17,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:17,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2021-11-20 07:23:17,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506
[2021-11-20 07:23:17,398 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 209
[2021-11-20 07:23:17,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 219 transitions, 964 flow. Second operand has 23 states, 23 states have (on average 113.17391304347827) internal successors, (2603), 23 states have internal predecessors, (2603), 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)
[2021-11-20 07:23:17,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:17,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 209
[2021-11-20 07:23:17,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:23,787 INFO L129 PetriNetUnfolder]: 7342/17187 cut-off events.
[2021-11-20 07:23:23,787 INFO L130 PetriNetUnfolder]: For 20602/20602 co-relation queries the response was YES.
[2021-11-20 07:23:23,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37360 conditions, 17187 events. 7342/17187 cut-off events. For 20602/20602 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 161010 event pairs, 392 based on Foata normal form. 33/16538 useless extension candidates. Maximal degree in co-relation 37331. Up to 3162 conditions per place.
[2021-11-20 07:23:24,083 INFO L132 encePairwiseOnDemand]: 177/209 looper letters, 666 selfloop transitions, 140 changer transitions 8/910 dead transitions.
[2021-11-20 07:23:24,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 910 transitions, 5589 flow
[2021-11-20 07:23:24,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states.
[2021-11-20 07:23:24,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states.
[2021-11-20 07:23:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 6228 transitions.
[2021-11-20 07:23:24,111 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5730585204269415
[2021-11-20 07:23:24,111 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 6228 transitions.
[2021-11-20 07:23:24,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 6228 transitions.
[2021-11-20 07:23:24,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:24,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 6228 transitions.
[2021-11-20 07:23:24,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 119.76923076923077) internal successors, (6228), 52 states have internal predecessors, (6228), 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)
[2021-11-20 07:23:24,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 209.0) internal successors, (11077), 53 states have internal predecessors, (11077), 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)
[2021-11-20 07:23:24,177 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 209.0) internal successors, (11077), 53 states have internal predecessors, (11077), 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)
[2021-11-20 07:23:24,177 INFO L186 Difference]: Start difference. First operand has 230 places, 219 transitions, 964 flow. Second operand 52 states and 6228 transitions.
[2021-11-20 07:23:24,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 910 transitions, 5589 flow
[2021-11-20 07:23:24,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 910 transitions, 5398 flow, removed 27 selfloop flow, removed 2 redundant places.
[2021-11-20 07:23:24,333 INFO L242 Difference]: Finished difference. Result has 310 places, 362 transitions, 2066 flow
[2021-11-20 07:23:24,334 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=2066, PETRI_PLACES=310, PETRI_TRANSITIONS=362}
[2021-11-20 07:23:24,335 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 123 predicate places.
[2021-11-20 07:23:24,335 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 362 transitions, 2066 flow
[2021-11-20 07:23:24,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 113.17391304347827) internal successors, (2603), 23 states have internal predecessors, (2603), 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)
[2021-11-20 07:23:24,338 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:24,338 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:24,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-20 07:23:24,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:23:24,553 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:24,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:24,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1359667531, now seen corresponding path program 2 times
[2021-11-20 07:23:24,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:24,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346537738]
[2021-11-20 07:23:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:24,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:24,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:24,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:24,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346537738]
[2021-11-20 07:23:24,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346537738] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-20 07:23:24,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36465159]
[2021-11-20 07:23:24,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-20 07:23:24,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:23:24,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:23:24,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-20 07:23:24,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-11-20 07:23:24,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2021-11-20 07:23:24,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-20 07:23:24,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-11-20 07:23:25,003 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:23:25,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:23:25,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-20 07:23:25,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36465159] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:25,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2021-11-20 07:23:25,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14
[2021-11-20 07:23:25,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121980927]
[2021-11-20 07:23:25,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:25,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-11-20 07:23:25,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:25,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-11-20 07:23:25,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182
[2021-11-20 07:23:25,600 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 209
[2021-11-20 07:23:25,603 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 362 transitions, 2066 flow. Second operand has 9 states, 9 states have (on average 140.66666666666666) internal successors, (1266), 9 states have internal predecessors, (1266), 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)
[2021-11-20 07:23:25,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:25,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 209
[2021-11-20 07:23:25,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:27,053 INFO L129 PetriNetUnfolder]: 1112/5337 cut-off events.
[2021-11-20 07:23:27,053 INFO L130 PetriNetUnfolder]: For 9151/9242 co-relation queries the response was YES.
[2021-11-20 07:23:27,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12509 conditions, 5337 events. 1112/5337 cut-off events. For 9151/9242 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 53502 event pairs, 257 based on Foata normal form. 14/4996 useless extension candidates. Maximal degree in co-relation 12449. Up to 1393 conditions per place.
[2021-11-20 07:23:27,112 INFO L132 encePairwiseOnDemand]: 188/209 looper letters, 94 selfloop transitions, 54 changer transitions 19/413 dead transitions.
[2021-11-20 07:23:27,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 413 transitions, 2546 flow
[2021-11-20 07:23:27,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-11-20 07:23:27,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2021-11-20 07:23:27,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1756 transitions.
[2021-11-20 07:23:27,118 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7001594896331739
[2021-11-20 07:23:27,118 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1756 transitions.
[2021-11-20 07:23:27,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1756 transitions.
[2021-11-20 07:23:27,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:27,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1756 transitions.
[2021-11-20 07:23:27,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 146.33333333333334) internal successors, (1756), 12 states have internal predecessors, (1756), 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)
[2021-11-20 07:23:27,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 209.0) internal successors, (2717), 13 states have internal predecessors, (2717), 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)
[2021-11-20 07:23:27,132 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 209.0) internal successors, (2717), 13 states have internal predecessors, (2717), 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)
[2021-11-20 07:23:27,133 INFO L186 Difference]: Start difference. First operand has 310 places, 362 transitions, 2066 flow. Second operand 12 states and 1756 transitions.
[2021-11-20 07:23:27,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 413 transitions, 2546 flow
[2021-11-20 07:23:27,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 413 transitions, 2456 flow, removed 19 selfloop flow, removed 10 redundant places.
[2021-11-20 07:23:27,255 INFO L242 Difference]: Finished difference. Result has 314 places, 377 transitions, 2225 flow
[2021-11-20 07:23:27,256 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1976, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2225, PETRI_PLACES=314, PETRI_TRANSITIONS=377}
[2021-11-20 07:23:27,258 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 127 predicate places.
[2021-11-20 07:23:27,258 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 377 transitions, 2225 flow
[2021-11-20 07:23:27,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 140.66666666666666) internal successors, (1266), 9 states have internal predecessors, (1266), 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)
[2021-11-20 07:23:27,259 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:27,259 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:27,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-11-20 07:23:27,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2021-11-20 07:23:27,485 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:27,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2032396257, now seen corresponding path program 1 times
[2021-11-20 07:23:27,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:27,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762526387]
[2021-11-20 07:23:27,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:27,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:27,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:23:27,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:27,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762526387]
[2021-11-20 07:23:27,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762526387] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-20 07:23:27,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261166683]
[2021-11-20 07:23:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:27,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:23:27,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:23:27,901 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-20 07:23:27,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-11-20 07:23:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:28,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 27 conjunts are in the unsatisfiable core
[2021-11-20 07:23:28,013 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:23:28,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2021-11-20 07:23:28,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:23:28,881 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-20 07:23:28,995 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size
[2021-11-20 07:23:28,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11
[2021-11-20 07:23:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:23:29,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261166683] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-20 07:23:29,252 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-20 07:23:29,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 9] total 22
[2021-11-20 07:23:29,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359484973]
[2021-11-20 07:23:29,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-20 07:23:29,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2021-11-20 07:23:29,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:29,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2021-11-20 07:23:29,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462
[2021-11-20 07:23:29,262 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 209
[2021-11-20 07:23:29,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 377 transitions, 2225 flow. Second operand has 22 states, 22 states have (on average 113.27272727272727) internal successors, (2492), 22 states have internal predecessors, (2492), 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)
[2021-11-20 07:23:29,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:29,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 209
[2021-11-20 07:23:29,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:36,452 INFO L129 PetriNetUnfolder]: 8548/19653 cut-off events.
[2021-11-20 07:23:36,452 INFO L130 PetriNetUnfolder]: For 52327/52421 co-relation queries the response was YES.
[2021-11-20 07:23:36,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58485 conditions, 19653 events. 8548/19653 cut-off events. For 52327/52421 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 185765 event pairs, 2091 based on Foata normal form. 71/19376 useless extension candidates. Maximal degree in co-relation 58422. Up to 7621 conditions per place.
[2021-11-20 07:23:36,792 INFO L132 encePairwiseOnDemand]: 178/209 looper letters, 588 selfloop transitions, 208 changer transitions 4/899 dead transitions.
[2021-11-20 07:23:36,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 899 transitions, 7137 flow
[2021-11-20 07:23:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states.
[2021-11-20 07:23:36,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states.
[2021-11-20 07:23:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7007 transitions.
[2021-11-20 07:23:36,921 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5496117342536669
[2021-11-20 07:23:36,921 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 7007 transitions.
[2021-11-20 07:23:36,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 7007 transitions.
[2021-11-20 07:23:36,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:36,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 7007 transitions.
[2021-11-20 07:23:36,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 114.8688524590164) internal successors, (7007), 61 states have internal predecessors, (7007), 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)
[2021-11-20 07:23:36,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 209.0) internal successors, (12958), 62 states have internal predecessors, (12958), 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)
[2021-11-20 07:23:36,972 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 209.0) internal successors, (12958), 62 states have internal predecessors, (12958), 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)
[2021-11-20 07:23:36,973 INFO L186 Difference]: Start difference. First operand has 314 places, 377 transitions, 2225 flow. Second operand 61 states and 7007 transitions.
[2021-11-20 07:23:36,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 899 transitions, 7137 flow
[2021-11-20 07:23:37,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 899 transitions, 7075 flow, removed 27 selfloop flow, removed 6 redundant places.
[2021-11-20 07:23:37,338 INFO L242 Difference]: Finished difference. Result has 396 places, 539 transitions, 4662 flow
[2021-11-20 07:23:37,339 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2205, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=4662, PETRI_PLACES=396, PETRI_TRANSITIONS=539}
[2021-11-20 07:23:37,339 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 209 predicate places.
[2021-11-20 07:23:37,339 INFO L470 AbstractCegarLoop]: Abstraction has has 396 places, 539 transitions, 4662 flow
[2021-11-20 07:23:37,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 113.27272727272727) internal successors, (2492), 22 states have internal predecessors, (2492), 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)
[2021-11-20 07:23:37,341 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:37,341 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:37,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-11-20 07:23:37,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2021-11-20 07:23:37,561 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:37,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:37,562 INFO L85 PathProgramCache]: Analyzing trace with hash -575446859, now seen corresponding path program 2 times
[2021-11-20 07:23:37,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:37,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285563880]
[2021-11-20 07:23:37,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:37,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:23:37,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:37,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285563880]
[2021-11-20 07:23:37,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285563880] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-20 07:23:37,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724154686]
[2021-11-20 07:23:37,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-20 07:23:37,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:23:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:23:37,874 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-20 07:23:37,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-11-20 07:23:37,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2021-11-20 07:23:37,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-20 07:23:37,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-11-20 07:23:37,993 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:23:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-11-20 07:23:38,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-20 07:23:38,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724154686] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:23:38,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2021-11-20 07:23:38,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2021-11-20 07:23:38,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031663051]
[2021-11-20 07:23:38,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:23:38,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-20 07:23:38,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-20 07:23:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2021-11-20 07:23:38,557 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 209
[2021-11-20 07:23:38,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 539 transitions, 4662 flow. Second operand has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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)
[2021-11-20 07:23:38,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:38,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 209
[2021-11-20 07:23:38,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:23:39,890 INFO L129 PetriNetUnfolder]: 937/4709 cut-off events.
[2021-11-20 07:23:39,890 INFO L130 PetriNetUnfolder]: For 19373/19544 co-relation queries the response was YES.
[2021-11-20 07:23:39,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14334 conditions, 4709 events. 937/4709 cut-off events. For 19373/19544 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 44506 event pairs, 181 based on Foata normal form. 110/4662 useless extension candidates. Maximal degree in co-relation 14242. Up to 605 conditions per place.
[2021-11-20 07:23:39,952 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 81 selfloop transitions, 48 changer transitions 0/581 dead transitions.
[2021-11-20 07:23:39,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 581 transitions, 5202 flow
[2021-11-20 07:23:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-20 07:23:39,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-11-20 07:23:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1236 transitions.
[2021-11-20 07:23:39,956 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8448393711551606
[2021-11-20 07:23:39,956 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1236 transitions.
[2021-11-20 07:23:39,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1236 transitions.
[2021-11-20 07:23:39,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:23:39,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1236 transitions.
[2021-11-20 07:23:39,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 176.57142857142858) internal successors, (1236), 7 states have internal predecessors, (1236), 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)
[2021-11-20 07:23:39,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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)
[2021-11-20 07:23:39,965 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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)
[2021-11-20 07:23:39,965 INFO L186 Difference]: Start difference. First operand has 396 places, 539 transitions, 4662 flow. Second operand 7 states and 1236 transitions.
[2021-11-20 07:23:39,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 581 transitions, 5202 flow
[2021-11-20 07:23:40,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 581 transitions, 4702 flow, removed 243 selfloop flow, removed 9 redundant places.
[2021-11-20 07:23:40,333 INFO L242 Difference]: Finished difference. Result has 394 places, 542 transitions, 4302 flow
[2021-11-20 07:23:40,334 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4162, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4302, PETRI_PLACES=394, PETRI_TRANSITIONS=542}
[2021-11-20 07:23:40,335 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 207 predicate places.
[2021-11-20 07:23:40,335 INFO L470 AbstractCegarLoop]: Abstraction has has 394 places, 542 transitions, 4302 flow
[2021-11-20 07:23:40,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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)
[2021-11-20 07:23:40,336 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:23:40,337 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:23:40,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-11-20 07:23:40,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2021-11-20 07:23:40,541 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:23:40,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:23:40,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1266164479, now seen corresponding path program 1 times
[2021-11-20 07:23:40,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:23:40,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38118186]
[2021-11-20 07:23:40,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:40,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:23:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:40,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:23:40,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:23:40,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38118186]
[2021-11-20 07:23:40,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38118186] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-20 07:23:40,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230956137]
[2021-11-20 07:23:40,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:23:40,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:23:40,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:23:40,967 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-20 07:23:40,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-11-20 07:23:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:23:41,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 40 conjunts are in the unsatisfiable core
[2021-11-20 07:23:41,066 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:23:43,091 INFO L354 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size
[2021-11-20 07:23:43,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 19
[2021-11-20 07:23:43,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:43,340 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-20 07:23:44,367 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-11-20 07:23:44,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 32
[2021-11-20 07:23:46,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:23:46,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230956137] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-20 07:23:46,980 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-20 07:23:46,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21, 22] total 47
[2021-11-20 07:23:46,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5220283]
[2021-11-20 07:23:46,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-20 07:23:46,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states
[2021-11-20 07:23:46,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:23:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants.
[2021-11-20 07:23:46,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1987, Unknown=0, NotChecked=0, Total=2162
[2021-11-20 07:23:46,993 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 209
[2021-11-20 07:23:46,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 542 transitions, 4302 flow. Second operand has 47 states, 47 states have (on average 85.76595744680851) internal successors, (4031), 47 states have internal predecessors, (4031), 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)
[2021-11-20 07:23:46,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:23:46,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 209
[2021-11-20 07:23:46,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:24:10,718 INFO L129 PetriNetUnfolder]: 17296/36899 cut-off events.
[2021-11-20 07:24:10,718 INFO L130 PetriNetUnfolder]: For 157924/158244 co-relation queries the response was YES.
[2021-11-20 07:24:11,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124017 conditions, 36899 events. 17296/36899 cut-off events. For 157924/158244 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 376077 event pairs, 2720 based on Foata normal form. 138/36382 useless extension candidates. Maximal degree in co-relation 123923. Up to 13398 conditions per place.
[2021-11-20 07:24:11,745 INFO L132 encePairwiseOnDemand]: 148/209 looper letters, 1139 selfloop transitions, 426 changer transitions 216/1913 dead transitions.
[2021-11-20 07:24:11,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 1913 transitions, 15848 flow
[2021-11-20 07:24:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states.
[2021-11-20 07:24:11,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states.
[2021-11-20 07:24:11,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 12646 transitions.
[2021-11-20 07:24:11,778 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.43219412166780585
[2021-11-20 07:24:11,779 INFO L72 ComplementDD]: Start complementDD. Operand 140 states and 12646 transitions.
[2021-11-20 07:24:11,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 12646 transitions.
[2021-11-20 07:24:11,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:24:11,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 140 states and 12646 transitions.
[2021-11-20 07:24:11,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 141 states, 140 states have (on average 90.32857142857142) internal successors, (12646), 140 states have internal predecessors, (12646), 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)
[2021-11-20 07:24:11,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 141 states, 141 states have (on average 209.0) internal successors, (29469), 141 states have internal predecessors, (29469), 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)
[2021-11-20 07:24:11,891 INFO L81 ComplementDD]: Finished complementDD. Result has 141 states, 141 states have (on average 209.0) internal successors, (29469), 141 states have internal predecessors, (29469), 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)
[2021-11-20 07:24:11,892 INFO L186 Difference]: Start difference. First operand has 394 places, 542 transitions, 4302 flow. Second operand 140 states and 12646 transitions.
[2021-11-20 07:24:11,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 1913 transitions, 15848 flow
[2021-11-20 07:24:14,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 1913 transitions, 15673 flow, removed 41 selfloop flow, removed 2 redundant places.
[2021-11-20 07:24:14,032 INFO L242 Difference]: Finished difference. Result has 619 places, 841 transitions, 8145 flow
[2021-11-20 07:24:14,033 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4253, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=140, PETRI_FLOW=8145, PETRI_PLACES=619, PETRI_TRANSITIONS=841}
[2021-11-20 07:24:14,033 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 432 predicate places.
[2021-11-20 07:24:14,033 INFO L470 AbstractCegarLoop]: Abstraction has has 619 places, 841 transitions, 8145 flow
[2021-11-20 07:24:14,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 85.76595744680851) internal successors, (4031), 47 states have internal predecessors, (4031), 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)
[2021-11-20 07:24:14,035 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:24:14,035 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:24:14,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2021-11-20 07:24:14,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2021-11-20 07:24:14,249 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:24:14,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:24:14,250 INFO L85 PathProgramCache]: Analyzing trace with hash -958446057, now seen corresponding path program 1 times
[2021-11-20 07:24:14,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:24:14,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628125946]
[2021-11-20 07:24:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:24:14,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:24:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:24:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:24:14,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:24:14,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628125946]
[2021-11-20 07:24:14,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628125946] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-20 07:24:14,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396030261]
[2021-11-20 07:24:14,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:24:14,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:24:14,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:24:14,691 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-20 07:24:14,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2021-11-20 07:24:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:24:14,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 14 conjunts are in the unsatisfiable core
[2021-11-20 07:24:14,770 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:24:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:24:15,673 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-20 07:24:16,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:24:16,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396030261] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-20 07:24:16,109 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-20 07:24:16,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20
[2021-11-20 07:24:16,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968066441]
[2021-11-20 07:24:16,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-20 07:24:16,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2021-11-20 07:24:16,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:24:16,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-11-20 07:24:16,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380
[2021-11-20 07:24:16,115 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 209
[2021-11-20 07:24:16,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 841 transitions, 8145 flow. Second operand has 20 states, 20 states have (on average 167.35) internal successors, (3347), 20 states have internal predecessors, (3347), 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)
[2021-11-20 07:24:16,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:24:16,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 209
[2021-11-20 07:24:16,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:24:25,454 INFO L129 PetriNetUnfolder]: 4173/16268 cut-off events.
[2021-11-20 07:24:25,454 INFO L130 PetriNetUnfolder]: For 128767/129463 co-relation queries the response was YES.
[2021-11-20 07:24:25,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65554 conditions, 16268 events. 4173/16268 cut-off events. For 128767/129463 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 184412 event pairs, 1098 based on Foata normal form. 173/15304 useless extension candidates. Maximal degree in co-relation 65372. Up to 2661 conditions per place.
[2021-11-20 07:24:25,919 INFO L132 encePairwiseOnDemand]: 192/209 looper letters, 283 selfloop transitions, 451 changer transitions 3/1289 dead transitions.
[2021-11-20 07:24:25,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 1289 transitions, 14852 flow
[2021-11-20 07:24:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2021-11-20 07:24:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states.
[2021-11-20 07:24:25,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 7180 transitions.
[2021-11-20 07:24:25,933 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8179539758487127
[2021-11-20 07:24:25,933 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 7180 transitions.
[2021-11-20 07:24:25,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 7180 transitions.
[2021-11-20 07:24:25,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:24:25,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 7180 transitions.
[2021-11-20 07:24:25,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 170.95238095238096) internal successors, (7180), 42 states have internal predecessors, (7180), 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)
[2021-11-20 07:24:25,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 209.0) internal successors, (8987), 43 states have internal predecessors, (8987), 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)
[2021-11-20 07:24:25,963 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 209.0) internal successors, (8987), 43 states have internal predecessors, (8987), 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)
[2021-11-20 07:24:25,964 INFO L186 Difference]: Start difference. First operand has 619 places, 841 transitions, 8145 flow. Second operand 42 states and 7180 transitions.
[2021-11-20 07:24:25,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 1289 transitions, 14852 flow
[2021-11-20 07:24:27,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 626 places, 1289 transitions, 14411 flow, removed 168 selfloop flow, removed 11 redundant places.
[2021-11-20 07:24:27,579 INFO L242 Difference]: Finished difference. Result has 656 places, 1144 transitions, 13683 flow
[2021-11-20 07:24:27,581 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=7727, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=13683, PETRI_PLACES=656, PETRI_TRANSITIONS=1144}
[2021-11-20 07:24:27,581 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 469 predicate places.
[2021-11-20 07:24:27,582 INFO L470 AbstractCegarLoop]: Abstraction has has 656 places, 1144 transitions, 13683 flow
[2021-11-20 07:24:27,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 167.35) internal successors, (3347), 20 states have internal predecessors, (3347), 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)
[2021-11-20 07:24:27,583 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:24:27,583 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:24:27,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2021-11-20 07:24:27,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2021-11-20 07:24:27,797 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:24:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:24:27,798 INFO L85 PathProgramCache]: Analyzing trace with hash -700678007, now seen corresponding path program 2 times
[2021-11-20 07:24:27,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:24:27,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117452645]
[2021-11-20 07:24:27,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:24:27,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:24:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:24:27,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:24:27,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:24:27,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117452645]
[2021-11-20 07:24:27,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117452645] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-20 07:24:27,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150305616]
[2021-11-20 07:24:27,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-20 07:24:27,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:24:27,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:24:27,980 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-20 07:24:28,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2021-11-20 07:24:28,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-11-20 07:24:28,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-20 07:24:28,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 14 conjunts are in the unsatisfiable core
[2021-11-20 07:24:28,164 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:24:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:24:28,656 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-20 07:24:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:24:29,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150305616] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-20 07:24:29,049 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-20 07:24:29,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19
[2021-11-20 07:24:29,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165573701]
[2021-11-20 07:24:29,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-20 07:24:29,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2021-11-20 07:24:29,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:24:29,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-11-20 07:24:29,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342
[2021-11-20 07:24:29,055 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 209
[2021-11-20 07:24:29,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 1144 transitions, 13683 flow. Second operand has 19 states, 19 states have (on average 167.42105263157896) internal successors, (3181), 19 states have internal predecessors, (3181), 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)
[2021-11-20 07:24:29,058 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:24:29,058 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 209
[2021-11-20 07:24:29,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-11-20 07:24:39,984 INFO L129 PetriNetUnfolder]: 4653/19165 cut-off events.
[2021-11-20 07:24:39,985 INFO L130 PetriNetUnfolder]: For 170039/171133 co-relation queries the response was YES.
[2021-11-20 07:24:41,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83827 conditions, 19165 events. 4653/19165 cut-off events. For 170039/171133 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 229827 event pairs, 1116 based on Foata normal form. 144/18084 useless extension candidates. Maximal degree in co-relation 83620. Up to 2994 conditions per place.
[2021-11-20 07:24:41,132 INFO L132 encePairwiseOnDemand]: 188/209 looper letters, 391 selfloop transitions, 547 changer transitions 17/1507 dead transitions.
[2021-11-20 07:24:41,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 1507 transitions, 19680 flow
[2021-11-20 07:24:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states.
[2021-11-20 07:24:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2021-11-20 07:24:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5386 transitions.
[2021-11-20 07:24:41,155 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.831301126717086
[2021-11-20 07:24:41,156 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 5386 transitions.
[2021-11-20 07:24:41,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 5386 transitions.
[2021-11-20 07:24:41,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-11-20 07:24:41,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 5386 transitions.
[2021-11-20 07:24:41,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 173.74193548387098) internal successors, (5386), 31 states have internal predecessors, (5386), 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)
[2021-11-20 07:24:41,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 209.0) internal successors, (6688), 32 states have internal predecessors, (6688), 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)
[2021-11-20 07:24:41,188 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 209.0) internal successors, (6688), 32 states have internal predecessors, (6688), 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)
[2021-11-20 07:24:41,189 INFO L186 Difference]: Start difference. First operand has 656 places, 1144 transitions, 13683 flow. Second operand 31 states and 5386 transitions.
[2021-11-20 07:24:41,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 686 places, 1507 transitions, 19680 flow
[2021-11-20 07:24:44,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 1507 transitions, 19098 flow, removed 239 selfloop flow, removed 4 redundant places.
[2021-11-20 07:24:44,538 INFO L242 Difference]: Finished difference. Result has 698 places, 1275 transitions, 16682 flow
[2021-11-20 07:24:44,540 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=13252, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=427, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=697, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=16682, PETRI_PLACES=698, PETRI_TRANSITIONS=1275}
[2021-11-20 07:24:44,541 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 511 predicate places.
[2021-11-20 07:24:44,541 INFO L470 AbstractCegarLoop]: Abstraction has has 698 places, 1275 transitions, 16682 flow
[2021-11-20 07:24:44,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 167.42105263157896) internal successors, (3181), 19 states have internal predecessors, (3181), 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)
[2021-11-20 07:24:44,542 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-11-20 07:24:44,543 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:24:44,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2021-11-20 07:24:44,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:24:44,757 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] ===
[2021-11-20 07:24:44,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:24:44,758 INFO L85 PathProgramCache]: Analyzing trace with hash 113877943, now seen corresponding path program 3 times
[2021-11-20 07:24:44,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:24:44,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245816124]
[2021-11-20 07:24:44,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:24:44,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:24:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:24:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:24:45,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:24:45,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245816124]
[2021-11-20 07:24:45,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245816124] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-20 07:24:45,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632825588]
[2021-11-20 07:24:45,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-11-20 07:24:45,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-20 07:24:45,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:24:45,233 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-20 07:24:45,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa468780-5540-4c59-b914-6d86c092ccdc/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2021-11-20 07:24:45,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-11-20 07:24:45,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-20 07:24:45,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 14 conjunts are in the unsatisfiable core
[2021-11-20 07:24:45,316 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:24:45,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:24:45,878 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-20 07:24:46,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-20 07:24:46,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632825588] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-20 07:24:46,612 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-20 07:24:46,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 23
[2021-11-20 07:24:46,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957230350]
[2021-11-20 07:24:46,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-20 07:24:46,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2021-11-20 07:24:46,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:24:46,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2021-11-20 07:24:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506
[2021-11-20 07:24:46,619 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 209
[2021-11-20 07:24:46,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 698 places, 1275 transitions, 16682 flow. Second operand has 23 states, 23 states have (on average 167.17391304347825) internal successors, (3845), 23 states have internal predecessors, (3845), 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)
[2021-11-20 07:24:46,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-11-20 07:24:46,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 209
[2021-11-20 07:24:46,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand