./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:48:46,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:48:46,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:48:46,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:48:46,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:48:46,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:48:46,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:48:46,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:48:46,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:48:46,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:48:46,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:48:46,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:48:46,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:48:46,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:48:46,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:48:46,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:48:46,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:48:46,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:48:46,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:48:46,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:48:46,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:48:46,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:48:46,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:48:46,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:48:46,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:48:46,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:48:46,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:48:46,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:48:46,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:48:46,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:48:46,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:48:46,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:48:46,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:48:46,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:48:46,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:48:46,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:48:46,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:48:46,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:48:46,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:48:46,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:48:46,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:48:46,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:48:46,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:48:46,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:48:46,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:48:46,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:48:46,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:48:46,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:48:46,491 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:48:46,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:48:46,492 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:48:46,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:48:46,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:48:46,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:48:46,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:48:46,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:48:46,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:48:46,495 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:48:46,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:48:46,495 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:48:46,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:48:46,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:48:46,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:48:46,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:48:46,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:48:46,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:48:46,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:48:46,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:48:46,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:48:46,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:48:46,498 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:48:46,499 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:48:46,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:48:46,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:48:46,500 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_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2021-10-28 23:48:46,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:48:46,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:48:46,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:48:46,849 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:48:46,850 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:48:46,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2021-10-28 23:48:46,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/data/b49d718ff/fa10b793adc2474eba985e4e9bc50888/FLAG9d9abee61 [2021-10-28 23:48:47,520 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:48:47,520 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2021-10-28 23:48:47,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/data/b49d718ff/fa10b793adc2474eba985e4e9bc50888/FLAG9d9abee61 [2021-10-28 23:48:47,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/data/b49d718ff/fa10b793adc2474eba985e4e9bc50888 [2021-10-28 23:48:47,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:48:47,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:48:47,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:47,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:48:47,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:48:47,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:47" (1/1) ... [2021-10-28 23:48:47,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df9781e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:47, skipping insertion in model container [2021-10-28 23:48:47,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:47" (1/1) ... [2021-10-28 23:48:47,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:48:47,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:48:48,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2021-10-28 23:48:48,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:48,274 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:48:48,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2021-10-28 23:48:48,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:48,375 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:48:48,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48 WrapperNode [2021-10-28 23:48:48,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:48,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:48:48,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:48:48,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:48:48,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:48:48,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:48:48,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:48:48,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:48:48,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:48:48,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:48:48,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:48:48,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:48:48,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (1/1) ... [2021-10-28 23:48:48,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:48:48,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:48,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:48,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:48:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:48:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 23:48:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:48:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:48:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-28 23:48:48,595 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-28 23:48:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-28 23:48:48,595 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-28 23:48:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-28 23:48:48,596 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-28 23:48:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-28 23:48:48,596 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-28 23:48:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:48:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 23:48:48,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:48:48,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:48:48,599 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:48:50,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:48:50,366 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 23:48:50,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:50 BoogieIcfgContainer [2021-10-28 23:48:50,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:48:50,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:48:50,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:48:50,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:48:50,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:48:47" (1/3) ... [2021-10-28 23:48:50,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77df86f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:48:50, skipping insertion in model container [2021-10-28 23:48:50,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:48" (2/3) ... [2021-10-28 23:48:50,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77df86f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:48:50, skipping insertion in model container [2021-10-28 23:48:50,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:50" (3/3) ... [2021-10-28 23:48:50,377 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2021-10-28 23:48:50,383 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:48:50,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:48:50,383 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 23:48:50,383 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:48:50,423 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,423 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,424 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,424 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,424 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,426 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,428 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,429 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,430 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,430 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,430 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,430 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,432 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,433 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,433 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,433 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,433 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,434 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,435 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,435 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,435 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,435 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,435 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,435 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,435 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,436 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,436 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,436 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,436 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,436 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,437 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,437 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,437 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,437 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,437 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,437 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,438 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,438 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,438 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,438 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,438 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,439 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,439 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,439 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,439 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,439 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,440 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,440 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,440 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,441 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,441 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,441 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,449 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,451 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,452 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,453 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,453 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,453 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,454 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,454 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,455 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,455 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,460 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,460 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,463 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,463 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,463 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,463 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,465 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,465 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,465 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,465 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,465 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,465 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,468 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,468 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:50,470 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 23:48:50,516 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:48:50,523 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:48:50,524 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 23:48:50,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 124 transitions, 268 flow [2021-10-28 23:48:50,620 INFO L129 PetriNetUnfolder]: 2/120 cut-off events. [2021-10-28 23:48:50,620 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:48:50,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2021-10-28 23:48:50,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 124 transitions, 268 flow [2021-10-28 23:48:50,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 120 transitions, 252 flow [2021-10-28 23:48:50,667 INFO L129 PetriNetUnfolder]: 0/85 cut-off events. [2021-10-28 23:48:50,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:48:50,668 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:50,668 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] [2021-10-28 23:48:50,669 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:50,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:50,679 INFO L85 PathProgramCache]: Analyzing trace with hash -5064655, now seen corresponding path program 1 times [2021-10-28 23:48:50,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:50,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223255303] [2021-10-28 23:48:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:50,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:51,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:51,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223255303] [2021-10-28 23:48:51,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223255303] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:51,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:51,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:48:51,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364892594] [2021-10-28 23:48:51,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:48:51,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:51,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:48:51,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:48:51,176 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 124 [2021-10-28 23:48:51,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 120 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:51,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:51,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 124 [2021-10-28 23:48:51,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:51,343 INFO L129 PetriNetUnfolder]: 16/184 cut-off events. [2021-10-28 23:48:51,343 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:48:51,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 184 events. 16/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 397 event pairs, 2 based on Foata normal form. 7/184 useless extension candidates. Maximal degree in co-relation 181. Up to 27 conditions per place. [2021-10-28 23:48:51,345 INFO L132 encePairwiseOnDemand]: 119/124 looper letters, 7 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2021-10-28 23:48:51,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 119 transitions, 268 flow [2021-10-28 23:48:51,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:48:51,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 23:48:51,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2021-10-28 23:48:51,362 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.956989247311828 [2021-10-28 23:48:51,363 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2021-10-28 23:48:51,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2021-10-28 23:48:51,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:51,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2021-10-28 23:48:51,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:51,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:51,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:51,381 INFO L186 Difference]: Start difference. First operand has 131 places, 120 transitions, 252 flow. Second operand 3 states and 356 transitions. [2021-10-28 23:48:51,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 119 transitions, 268 flow [2021-10-28 23:48:51,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 119 transitions, 264 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 23:48:51,390 INFO L242 Difference]: Finished difference. Result has 127 places, 116 transitions, 244 flow [2021-10-28 23:48:51,392 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=127, PETRI_TRANSITIONS=116} [2021-10-28 23:48:51,393 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, -4 predicate places. [2021-10-28 23:48:51,394 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 116 transitions, 244 flow [2021-10-28 23:48:51,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:51,394 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:51,394 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] [2021-10-28 23:48:51,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:48:51,395 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:51,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:51,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1247585882, now seen corresponding path program 1 times [2021-10-28 23:48:51,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:51,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850919292] [2021-10-28 23:48:51,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:51,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:51,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:51,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:51,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850919292] [2021-10-28 23:48:51,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850919292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:51,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:51,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:48:51,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678495864] [2021-10-28 23:48:51,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:48:51,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:51,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:51,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:48:51,767 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-10-28 23:48:51,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 116 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:51,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:51,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-10-28 23:48:51,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:52,001 INFO L129 PetriNetUnfolder]: 30/268 cut-off events. [2021-10-28 23:48:52,002 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:48:52,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 268 events. 30/268 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 887 event pairs, 6 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 310. Up to 36 conditions per place. [2021-10-28 23:48:52,006 INFO L132 encePairwiseOnDemand]: 117/124 looper letters, 8 selfloop transitions, 3 changer transitions 33/139 dead transitions. [2021-10-28 23:48:52,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 139 transitions, 356 flow [2021-10-28 23:48:52,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:48:52,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 23:48:52,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1034 transitions. [2021-10-28 23:48:52,016 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9265232974910395 [2021-10-28 23:48:52,024 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1034 transitions. [2021-10-28 23:48:52,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1034 transitions. [2021-10-28 23:48:52,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:52,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1034 transitions. [2021-10-28 23:48:52,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.88888888888889) internal successors, (1034), 9 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:52,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:52,057 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:52,057 INFO L186 Difference]: Start difference. First operand has 127 places, 116 transitions, 244 flow. Second operand 9 states and 1034 transitions. [2021-10-28 23:48:52,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 139 transitions, 356 flow [2021-10-28 23:48:52,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 139 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-28 23:48:52,069 INFO L242 Difference]: Finished difference. Result has 140 places, 106 transitions, 259 flow [2021-10-28 23:48:52,069 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=259, PETRI_PLACES=140, PETRI_TRANSITIONS=106} [2021-10-28 23:48:52,070 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 9 predicate places. [2021-10-28 23:48:52,070 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 106 transitions, 259 flow [2021-10-28 23:48:52,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:52,071 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:52,071 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] [2021-10-28 23:48:52,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:48:52,072 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:52,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:52,073 INFO L85 PathProgramCache]: Analyzing trace with hash -901804539, now seen corresponding path program 1 times [2021-10-28 23:48:52,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:52,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328829631] [2021-10-28 23:48:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:52,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:52,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:52,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328829631] [2021-10-28 23:48:52,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328829631] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:52,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:52,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:48:52,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002930217] [2021-10-28 23:48:52,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:48:52,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:52,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:52,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:48:52,411 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-10-28 23:48:52,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 106 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:52,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:52,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-10-28 23:48:52,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:52,605 INFO L129 PetriNetUnfolder]: 58/266 cut-off events. [2021-10-28 23:48:52,605 INFO L130 PetriNetUnfolder]: For 218/230 co-relation queries the response was YES. [2021-10-28 23:48:52,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 266 events. 58/266 cut-off events. For 218/230 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 944 event pairs, 17 based on Foata normal form. 6/261 useless extension candidates. Maximal degree in co-relation 508. Up to 60 conditions per place. [2021-10-28 23:48:52,611 INFO L132 encePairwiseOnDemand]: 117/124 looper letters, 8 selfloop transitions, 3 changer transitions 19/127 dead transitions. [2021-10-28 23:48:52,611 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 379 flow [2021-10-28 23:48:52,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:48:52,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 23:48:52,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1031 transitions. [2021-10-28 23:48:52,616 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9238351254480287 [2021-10-28 23:48:52,617 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1031 transitions. [2021-10-28 23:48:52,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1031 transitions. [2021-10-28 23:48:52,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:52,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1031 transitions. [2021-10-28 23:48:52,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.55555555555556) internal successors, (1031), 9 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:52,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:52,626 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:52,626 INFO L186 Difference]: Start difference. First operand has 140 places, 106 transitions, 259 flow. Second operand 9 states and 1031 transitions. [2021-10-28 23:48:52,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 379 flow [2021-10-28 23:48:52,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 127 transitions, 362 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-10-28 23:48:52,638 INFO L242 Difference]: Finished difference. Result has 133 places, 108 transitions, 293 flow [2021-10-28 23:48:52,639 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=293, PETRI_PLACES=133, PETRI_TRANSITIONS=108} [2021-10-28 23:48:52,639 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 2 predicate places. [2021-10-28 23:48:52,639 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 108 transitions, 293 flow [2021-10-28 23:48:52,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:52,640 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:52,641 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] [2021-10-28 23:48:52,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:48:52,641 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:52,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash 971860943, now seen corresponding path program 1 times [2021-10-28 23:48:52,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:52,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321232759] [2021-10-28 23:48:52,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:52,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:53,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:53,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321232759] [2021-10-28 23:48:53,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321232759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:53,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:53,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:48:53,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583576279] [2021-10-28 23:48:53,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:48:53,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:53,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:48:53,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:48:53,034 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 124 [2021-10-28 23:48:53,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 108 transitions, 293 flow. Second operand has 9 states, 9 states have (on average 106.11111111111111) internal successors, (955), 9 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:53,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:53,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 124 [2021-10-28 23:48:53,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:53,740 INFO L129 PetriNetUnfolder]: 773/1586 cut-off events. [2021-10-28 23:48:53,740 INFO L130 PetriNetUnfolder]: For 2999/3038 co-relation queries the response was YES. [2021-10-28 23:48:53,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4521 conditions, 1586 events. 773/1586 cut-off events. For 2999/3038 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 10437 event pairs, 258 based on Foata normal form. 51/1555 useless extension candidates. Maximal degree in co-relation 4457. Up to 563 conditions per place. [2021-10-28 23:48:53,772 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 12 selfloop transitions, 9 changer transitions 34/149 dead transitions. [2021-10-28 23:48:53,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 149 transitions, 529 flow [2021-10-28 23:48:53,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:48:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 23:48:53,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1528 transitions. [2021-10-28 23:48:53,778 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.880184331797235 [2021-10-28 23:48:53,778 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1528 transitions. [2021-10-28 23:48:53,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1528 transitions. [2021-10-28 23:48:53,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:53,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1528 transitions. [2021-10-28 23:48:53,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 109.14285714285714) internal successors, (1528), 14 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:53,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:53,791 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:53,792 INFO L186 Difference]: Start difference. First operand has 133 places, 108 transitions, 293 flow. Second operand 14 states and 1528 transitions. [2021-10-28 23:48:53,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 149 transitions, 529 flow [2021-10-28 23:48:53,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 149 transitions, 508 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-10-28 23:48:53,804 INFO L242 Difference]: Finished difference. Result has 147 places, 114 transitions, 370 flow [2021-10-28 23:48:53,805 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=370, PETRI_PLACES=147, PETRI_TRANSITIONS=114} [2021-10-28 23:48:53,805 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 16 predicate places. [2021-10-28 23:48:53,805 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 114 transitions, 370 flow [2021-10-28 23:48:53,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 106.11111111111111) internal successors, (955), 9 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:53,806 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:53,806 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] [2021-10-28 23:48:53,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:48:53,807 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:53,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:53,807 INFO L85 PathProgramCache]: Analyzing trace with hash -366806735, now seen corresponding path program 1 times [2021-10-28 23:48:53,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:53,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569346619] [2021-10-28 23:48:53,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:53,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:53,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:53,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:53,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569346619] [2021-10-28 23:48:53,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569346619] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:53,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:53,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:48:53,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765816441] [2021-10-28 23:48:53,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:48:53,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:53,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:53,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:48:53,937 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-10-28 23:48:53,938 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 114 transitions, 370 flow. Second operand has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:53,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:53,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-10-28 23:48:53,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:54,247 INFO L129 PetriNetUnfolder]: 262/883 cut-off events. [2021-10-28 23:48:54,247 INFO L130 PetriNetUnfolder]: For 3806/4263 co-relation queries the response was YES. [2021-10-28 23:48:54,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3231 conditions, 883 events. 262/883 cut-off events. For 3806/4263 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6393 event pairs, 79 based on Foata normal form. 20/844 useless extension candidates. Maximal degree in co-relation 3157. Up to 144 conditions per place. [2021-10-28 23:48:54,267 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 14 selfloop transitions, 7 changer transitions 6/129 dead transitions. [2021-10-28 23:48:54,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 129 transitions, 563 flow [2021-10-28 23:48:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:48:54,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 23:48:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1025 transitions. [2021-10-28 23:48:54,271 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9184587813620072 [2021-10-28 23:48:54,272 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1025 transitions. [2021-10-28 23:48:54,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1025 transitions. [2021-10-28 23:48:54,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:54,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1025 transitions. [2021-10-28 23:48:54,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.88888888888889) internal successors, (1025), 9 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:54,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:54,280 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:54,281 INFO L186 Difference]: Start difference. First operand has 147 places, 114 transitions, 370 flow. Second operand 9 states and 1025 transitions. [2021-10-28 23:48:54,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 129 transitions, 563 flow [2021-10-28 23:48:54,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 129 transitions, 533 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-10-28 23:48:54,293 INFO L242 Difference]: Finished difference. Result has 149 places, 118 transitions, 440 flow [2021-10-28 23:48:54,293 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=440, PETRI_PLACES=149, PETRI_TRANSITIONS=118} [2021-10-28 23:48:54,294 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 18 predicate places. [2021-10-28 23:48:54,294 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 118 transitions, 440 flow [2021-10-28 23:48:54,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:54,295 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:54,295 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] [2021-10-28 23:48:54,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:48:54,295 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:54,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:54,296 INFO L85 PathProgramCache]: Analyzing trace with hash -363071608, now seen corresponding path program 1 times [2021-10-28 23:48:54,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:54,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712085231] [2021-10-28 23:48:54,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:54,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:54,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:54,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:54,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712085231] [2021-10-28 23:48:54,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712085231] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:54,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:54,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:48:54,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767026675] [2021-10-28 23:48:54,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:48:54,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:54,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:48:54,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:48:54,489 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 124 [2021-10-28 23:48:54,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 118 transitions, 440 flow. Second operand has 9 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:54,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:54,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 124 [2021-10-28 23:48:54,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:55,295 INFO L129 PetriNetUnfolder]: 915/1977 cut-off events. [2021-10-28 23:48:55,296 INFO L130 PetriNetUnfolder]: For 12278/12638 co-relation queries the response was YES. [2021-10-28 23:48:55,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8483 conditions, 1977 events. 915/1977 cut-off events. For 12278/12638 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 14593 event pairs, 212 based on Foata normal form. 45/1938 useless extension candidates. Maximal degree in co-relation 8403. Up to 713 conditions per place. [2021-10-28 23:48:55,337 INFO L132 encePairwiseOnDemand]: 114/124 looper letters, 22 selfloop transitions, 8 changer transitions 39/163 dead transitions. [2021-10-28 23:48:55,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 163 transitions, 1000 flow [2021-10-28 23:48:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:48:55,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 23:48:55,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1523 transitions. [2021-10-28 23:48:55,343 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8773041474654378 [2021-10-28 23:48:55,344 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1523 transitions. [2021-10-28 23:48:55,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1523 transitions. [2021-10-28 23:48:55,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:55,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1523 transitions. [2021-10-28 23:48:55,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 108.78571428571429) internal successors, (1523), 14 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:55,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:55,357 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:55,357 INFO L186 Difference]: Start difference. First operand has 149 places, 118 transitions, 440 flow. Second operand 14 states and 1523 transitions. [2021-10-28 23:48:55,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 163 transitions, 1000 flow [2021-10-28 23:48:55,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 163 transitions, 943 flow, removed 27 selfloop flow, removed 4 redundant places. [2021-10-28 23:48:55,397 INFO L242 Difference]: Finished difference. Result has 165 places, 117 transitions, 440 flow [2021-10-28 23:48:55,398 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=440, PETRI_PLACES=165, PETRI_TRANSITIONS=117} [2021-10-28 23:48:55,398 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 34 predicate places. [2021-10-28 23:48:55,398 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 117 transitions, 440 flow [2021-10-28 23:48:55,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:55,399 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:55,399 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] [2021-10-28 23:48:55,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:48:55,400 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:55,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:55,400 INFO L85 PathProgramCache]: Analyzing trace with hash 634837428, now seen corresponding path program 2 times [2021-10-28 23:48:55,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:55,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751225656] [2021-10-28 23:48:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:55,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:55,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:55,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:55,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751225656] [2021-10-28 23:48:55,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751225656] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:55,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:55,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:48:55,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352524673] [2021-10-28 23:48:55,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:48:55,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:55,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:48:55,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:48:55,623 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 124 [2021-10-28 23:48:55,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 117 transitions, 440 flow. Second operand has 10 states, 10 states have (on average 105.2) internal successors, (1052), 10 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:55,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:55,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 124 [2021-10-28 23:48:55,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:56,235 INFO L129 PetriNetUnfolder]: 619/1430 cut-off events. [2021-10-28 23:48:56,235 INFO L130 PetriNetUnfolder]: For 12512/12788 co-relation queries the response was YES. [2021-10-28 23:48:56,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6898 conditions, 1430 events. 619/1430 cut-off events. For 12512/12788 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 9616 event pairs, 150 based on Foata normal form. 49/1421 useless extension candidates. Maximal degree in co-relation 6808. Up to 501 conditions per place. [2021-10-28 23:48:56,268 INFO L132 encePairwiseOnDemand]: 115/124 looper letters, 20 selfloop transitions, 7 changer transitions 19/139 dead transitions. [2021-10-28 23:48:56,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 139 transitions, 770 flow [2021-10-28 23:48:56,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:48:56,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-28 23:48:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1289 transitions. [2021-10-28 23:48:56,273 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.866263440860215 [2021-10-28 23:48:56,274 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1289 transitions. [2021-10-28 23:48:56,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1289 transitions. [2021-10-28 23:48:56,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:56,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1289 transitions. [2021-10-28 23:48:56,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 107.41666666666667) internal successors, (1289), 12 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:56,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:56,285 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:56,285 INFO L186 Difference]: Start difference. First operand has 165 places, 117 transitions, 440 flow. Second operand 12 states and 1289 transitions. [2021-10-28 23:48:56,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 139 transitions, 770 flow [2021-10-28 23:48:56,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 139 transitions, 697 flow, removed 32 selfloop flow, removed 11 redundant places. [2021-10-28 23:48:56,313 INFO L242 Difference]: Finished difference. Result has 160 places, 117 transitions, 431 flow [2021-10-28 23:48:56,313 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=431, PETRI_PLACES=160, PETRI_TRANSITIONS=117} [2021-10-28 23:48:56,314 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 29 predicate places. [2021-10-28 23:48:56,314 INFO L470 AbstractCegarLoop]: Abstraction has has 160 places, 117 transitions, 431 flow [2021-10-28 23:48:56,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 105.2) internal successors, (1052), 10 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:56,315 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:56,315 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] [2021-10-28 23:48:56,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:48:56,315 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:56,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:56,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1771032138, now seen corresponding path program 1 times [2021-10-28 23:48:56,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:56,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806174271] [2021-10-28 23:48:56,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:56,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:56,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:56,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:56,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806174271] [2021-10-28 23:48:56,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806174271] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:56,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:56,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 23:48:56,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093531322] [2021-10-28 23:48:56,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:48:56,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:56,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:48:56,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:48:56,603 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 124 [2021-10-28 23:48:56,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 117 transitions, 431 flow. Second operand has 11 states, 11 states have (on average 104.18181818181819) internal successors, (1146), 11 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:56,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:56,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 124 [2021-10-28 23:48:56,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:57,116 INFO L129 PetriNetUnfolder]: 511/1241 cut-off events. [2021-10-28 23:48:57,117 INFO L130 PetriNetUnfolder]: For 9829/10095 co-relation queries the response was YES. [2021-10-28 23:48:57,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5757 conditions, 1241 events. 511/1241 cut-off events. For 9829/10095 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8347 event pairs, 157 based on Foata normal form. 50/1228 useless extension candidates. Maximal degree in co-relation 5666. Up to 418 conditions per place. [2021-10-28 23:48:57,146 INFO L132 encePairwiseOnDemand]: 112/124 looper letters, 16 selfloop transitions, 11 changer transitions 23/142 dead transitions. [2021-10-28 23:48:57,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 142 transitions, 749 flow [2021-10-28 23:48:57,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:48:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 23:48:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1488 transitions. [2021-10-28 23:48:57,152 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-10-28 23:48:57,152 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1488 transitions. [2021-10-28 23:48:57,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1488 transitions. [2021-10-28 23:48:57,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:57,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1488 transitions. [2021-10-28 23:48:57,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 106.28571428571429) internal successors, (1488), 14 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:57,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:57,165 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:57,166 INFO L186 Difference]: Start difference. First operand has 160 places, 117 transitions, 431 flow. Second operand 14 states and 1488 transitions. [2021-10-28 23:48:57,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 142 transitions, 749 flow [2021-10-28 23:48:57,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 142 transitions, 690 flow, removed 24 selfloop flow, removed 13 redundant places. [2021-10-28 23:48:57,190 INFO L242 Difference]: Finished difference. Result has 161 places, 118 transitions, 456 flow [2021-10-28 23:48:57,190 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=456, PETRI_PLACES=161, PETRI_TRANSITIONS=118} [2021-10-28 23:48:57,191 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 30 predicate places. [2021-10-28 23:48:57,191 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 118 transitions, 456 flow [2021-10-28 23:48:57,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 104.18181818181819) internal successors, (1146), 11 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:57,192 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:57,192 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] [2021-10-28 23:48:57,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:48:57,192 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:57,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:57,193 INFO L85 PathProgramCache]: Analyzing trace with hash 433003160, now seen corresponding path program 1 times [2021-10-28 23:48:57,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:57,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461772919] [2021-10-28 23:48:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:57,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:57,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:57,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461772919] [2021-10-28 23:48:57,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461772919] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:57,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:57,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 23:48:57,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934976249] [2021-10-28 23:48:57,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:48:57,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:57,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:48:57,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:48:57,478 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 124 [2021-10-28 23:48:57,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 118 transitions, 456 flow. Second operand has 11 states, 11 states have (on average 104.27272727272727) internal successors, (1147), 11 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:57,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:57,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 124 [2021-10-28 23:48:57,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:58,187 INFO L129 PetriNetUnfolder]: 448/1125 cut-off events. [2021-10-28 23:48:58,187 INFO L130 PetriNetUnfolder]: For 9611/9852 co-relation queries the response was YES. [2021-10-28 23:48:58,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5657 conditions, 1125 events. 448/1125 cut-off events. For 9611/9852 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 7363 event pairs, 110 based on Foata normal form. 38/1115 useless extension candidates. Maximal degree in co-relation 5566. Up to 402 conditions per place. [2021-10-28 23:48:58,219 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 20 selfloop transitions, 12 changer transitions 19/143 dead transitions. [2021-10-28 23:48:58,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 143 transitions, 859 flow [2021-10-28 23:48:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:48:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 23:48:58,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1384 transitions. [2021-10-28 23:48:58,225 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.858560794044665 [2021-10-28 23:48:58,225 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1384 transitions. [2021-10-28 23:48:58,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1384 transitions. [2021-10-28 23:48:58,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:58,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1384 transitions. [2021-10-28 23:48:58,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.46153846153847) internal successors, (1384), 13 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:58,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:58,239 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:58,239 INFO L186 Difference]: Start difference. First operand has 161 places, 118 transitions, 456 flow. Second operand 13 states and 1384 transitions. [2021-10-28 23:48:58,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 143 transitions, 859 flow [2021-10-28 23:48:58,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 143 transitions, 822 flow, removed 10 selfloop flow, removed 9 redundant places. [2021-10-28 23:48:58,257 INFO L242 Difference]: Finished difference. Result has 165 places, 122 transitions, 522 flow [2021-10-28 23:48:58,257 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=522, PETRI_PLACES=165, PETRI_TRANSITIONS=122} [2021-10-28 23:48:58,258 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 34 predicate places. [2021-10-28 23:48:58,258 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 122 transitions, 522 flow [2021-10-28 23:48:58,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 104.27272727272727) internal successors, (1147), 11 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:58,259 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:58,259 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] [2021-10-28 23:48:58,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 23:48:58,260 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:58,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:58,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1384691022, now seen corresponding path program 2 times [2021-10-28 23:48:58,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:58,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812363522] [2021-10-28 23:48:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:58,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:58,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:58,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:58,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812363522] [2021-10-28 23:48:58,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812363522] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:58,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:58,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:48:58,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095166631] [2021-10-28 23:48:58,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:48:58,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:58,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:48:58,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:48:58,469 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 124 [2021-10-28 23:48:58,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 122 transitions, 522 flow. Second operand has 9 states, 9 states have (on average 107.33333333333333) internal successors, (966), 9 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:58,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:58,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 124 [2021-10-28 23:48:58,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:59,034 INFO L129 PetriNetUnfolder]: 432/1127 cut-off events. [2021-10-28 23:48:59,034 INFO L130 PetriNetUnfolder]: For 14373/14656 co-relation queries the response was YES. [2021-10-28 23:48:59,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6372 conditions, 1127 events. 432/1127 cut-off events. For 14373/14656 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 7583 event pairs, 114 based on Foata normal form. 42/1117 useless extension candidates. Maximal degree in co-relation 6281. Up to 306 conditions per place. [2021-10-28 23:48:59,064 INFO L132 encePairwiseOnDemand]: 115/124 looper letters, 23 selfloop transitions, 12 changer transitions 19/148 dead transitions. [2021-10-28 23:48:59,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 148 transitions, 1040 flow [2021-10-28 23:48:59,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:48:59,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 23:48:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1209 transitions. [2021-10-28 23:48:59,069 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8863636363636364 [2021-10-28 23:48:59,069 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1209 transitions. [2021-10-28 23:48:59,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1209 transitions. [2021-10-28 23:48:59,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:59,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1209 transitions. [2021-10-28 23:48:59,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:59,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:59,080 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:59,080 INFO L186 Difference]: Start difference. First operand has 165 places, 122 transitions, 522 flow. Second operand 11 states and 1209 transitions. [2021-10-28 23:48:59,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 148 transitions, 1040 flow [2021-10-28 23:48:59,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 148 transitions, 855 flow, removed 91 selfloop flow, removed 11 redundant places. [2021-10-28 23:48:59,112 INFO L242 Difference]: Finished difference. Result has 165 places, 124 transitions, 553 flow [2021-10-28 23:48:59,113 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=553, PETRI_PLACES=165, PETRI_TRANSITIONS=124} [2021-10-28 23:48:59,113 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 34 predicate places. [2021-10-28 23:48:59,113 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 124 transitions, 553 flow [2021-10-28 23:48:59,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 107.33333333333333) internal successors, (966), 9 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:59,114 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:59,115 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] [2021-10-28 23:48:59,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 23:48:59,115 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:48:59,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:59,116 INFO L85 PathProgramCache]: Analyzing trace with hash 593477003, now seen corresponding path program 1 times [2021-10-28 23:48:59,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:59,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086678612] [2021-10-28 23:48:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:59,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:59,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:59,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086678612] [2021-10-28 23:48:59,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086678612] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:59,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:59,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 23:48:59,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441016214] [2021-10-28 23:48:59,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:48:59,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:59,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:48:59,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:48:59,482 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 124 [2021-10-28 23:48:59,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 124 transitions, 553 flow. Second operand has 13 states, 13 states have (on average 103.23076923076923) internal successors, (1342), 13 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:59,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:59,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 124 [2021-10-28 23:48:59,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:00,147 INFO L129 PetriNetUnfolder]: 335/938 cut-off events. [2021-10-28 23:49:00,147 INFO L130 PetriNetUnfolder]: For 10061/10346 co-relation queries the response was YES. [2021-10-28 23:49:00,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5071 conditions, 938 events. 335/938 cut-off events. For 10061/10346 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6040 event pairs, 86 based on Foata normal form. 25/920 useless extension candidates. Maximal degree in co-relation 4978. Up to 380 conditions per place. [2021-10-28 23:49:00,182 INFO L132 encePairwiseOnDemand]: 112/124 looper letters, 26 selfloop transitions, 14 changer transitions 10/141 dead transitions. [2021-10-28 23:49:00,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 141 transitions, 868 flow [2021-10-28 23:49:00,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:49:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 23:49:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1466 transitions. [2021-10-28 23:49:00,185 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8444700460829493 [2021-10-28 23:49:00,185 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1466 transitions. [2021-10-28 23:49:00,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1466 transitions. [2021-10-28 23:49:00,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:00,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1466 transitions. [2021-10-28 23:49:00,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 104.71428571428571) internal successors, (1466), 14 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:00,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:00,205 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:00,213 INFO L186 Difference]: Start difference. First operand has 165 places, 124 transitions, 553 flow. Second operand 14 states and 1466 transitions. [2021-10-28 23:49:00,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 141 transitions, 868 flow [2021-10-28 23:49:00,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 141 transitions, 822 flow, removed 15 selfloop flow, removed 6 redundant places. [2021-10-28 23:49:00,242 INFO L242 Difference]: Finished difference. Result has 174 places, 128 transitions, 632 flow [2021-10-28 23:49:00,242 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=632, PETRI_PLACES=174, PETRI_TRANSITIONS=128} [2021-10-28 23:49:00,243 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 43 predicate places. [2021-10-28 23:49:00,243 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 128 transitions, 632 flow [2021-10-28 23:49:00,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 103.23076923076923) internal successors, (1342), 13 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:00,244 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:00,245 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] [2021-10-28 23:49:00,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 23:49:00,245 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:00,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:00,246 INFO L85 PathProgramCache]: Analyzing trace with hash 597009287, now seen corresponding path program 2 times [2021-10-28 23:49:00,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:00,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895845366] [2021-10-28 23:49:00,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:00,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:00,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:00,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895845366] [2021-10-28 23:49:00,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895845366] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:00,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:00,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 23:49:00,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148913363] [2021-10-28 23:49:00,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:49:00,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:00,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:49:00,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:49:00,617 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 124 [2021-10-28 23:49:00,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 128 transitions, 632 flow. Second operand has 14 states, 14 states have (on average 102.21428571428571) internal successors, (1431), 14 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:00,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:00,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 124 [2021-10-28 23:49:00,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:01,273 INFO L129 PetriNetUnfolder]: 338/977 cut-off events. [2021-10-28 23:49:01,273 INFO L130 PetriNetUnfolder]: For 12956/13456 co-relation queries the response was YES. [2021-10-28 23:49:01,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5577 conditions, 977 events. 338/977 cut-off events. For 12956/13456 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6433 event pairs, 86 based on Foata normal form. 31/964 useless extension candidates. Maximal degree in co-relation 5476. Up to 392 conditions per place. [2021-10-28 23:49:01,300 INFO L132 encePairwiseOnDemand]: 111/124 looper letters, 26 selfloop transitions, 16 changer transitions 10/142 dead transitions. [2021-10-28 23:49:01,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 142 transitions, 977 flow [2021-10-28 23:49:01,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:49:01,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-28 23:49:01,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1553 transitions. [2021-10-28 23:49:01,307 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8349462365591398 [2021-10-28 23:49:01,307 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1553 transitions. [2021-10-28 23:49:01,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1553 transitions. [2021-10-28 23:49:01,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:01,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1553 transitions. [2021-10-28 23:49:01,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 103.53333333333333) internal successors, (1553), 15 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:01,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:01,319 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:01,319 INFO L186 Difference]: Start difference. First operand has 174 places, 128 transitions, 632 flow. Second operand 15 states and 1553 transitions. [2021-10-28 23:49:01,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 142 transitions, 977 flow [2021-10-28 23:49:01,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 142 transitions, 868 flow, removed 44 selfloop flow, removed 11 redundant places. [2021-10-28 23:49:01,362 INFO L242 Difference]: Finished difference. Result has 178 places, 130 transitions, 673 flow [2021-10-28 23:49:01,362 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=673, PETRI_PLACES=178, PETRI_TRANSITIONS=130} [2021-10-28 23:49:01,363 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 47 predicate places. [2021-10-28 23:49:01,363 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 130 transitions, 673 flow [2021-10-28 23:49:01,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 102.21428571428571) internal successors, (1431), 14 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:01,364 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:01,364 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] [2021-10-28 23:49:01,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 23:49:01,364 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:01,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:01,365 INFO L85 PathProgramCache]: Analyzing trace with hash -839004541, now seen corresponding path program 3 times [2021-10-28 23:49:01,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:01,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684634535] [2021-10-28 23:49:01,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:01,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:01,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:01,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:01,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684634535] [2021-10-28 23:49:01,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684634535] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:01,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:01,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 23:49:01,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315016175] [2021-10-28 23:49:01,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:49:01,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:01,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:49:01,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:49:01,749 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 124 [2021-10-28 23:49:01,751 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 130 transitions, 673 flow. Second operand has 13 states, 13 states have (on average 102.3076923076923) internal successors, (1330), 13 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:01,751 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:01,751 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 124 [2021-10-28 23:49:01,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:02,496 INFO L129 PetriNetUnfolder]: 338/968 cut-off events. [2021-10-28 23:49:02,496 INFO L130 PetriNetUnfolder]: For 13663/14115 co-relation queries the response was YES. [2021-10-28 23:49:02,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5658 conditions, 968 events. 338/968 cut-off events. For 13663/14115 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6346 event pairs, 92 based on Foata normal form. 40/964 useless extension candidates. Maximal degree in co-relation 5555. Up to 384 conditions per place. [2021-10-28 23:49:02,524 INFO L132 encePairwiseOnDemand]: 111/124 looper letters, 25 selfloop transitions, 18 changer transitions 10/143 dead transitions. [2021-10-28 23:49:02,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 143 transitions, 1007 flow [2021-10-28 23:49:02,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:49:02,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-28 23:49:02,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1556 transitions. [2021-10-28 23:49:02,527 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8365591397849462 [2021-10-28 23:49:02,528 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1556 transitions. [2021-10-28 23:49:02,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1556 transitions. [2021-10-28 23:49:02,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:02,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1556 transitions. [2021-10-28 23:49:02,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 103.73333333333333) internal successors, (1556), 15 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:02,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:02,537 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:02,537 INFO L186 Difference]: Start difference. First operand has 178 places, 130 transitions, 673 flow. Second operand 15 states and 1556 transitions. [2021-10-28 23:49:02,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 143 transitions, 1007 flow [2021-10-28 23:49:02,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 143 transitions, 912 flow, removed 36 selfloop flow, removed 13 redundant places. [2021-10-28 23:49:02,574 INFO L242 Difference]: Finished difference. Result has 180 places, 131 transitions, 710 flow [2021-10-28 23:49:02,575 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=710, PETRI_PLACES=180, PETRI_TRANSITIONS=131} [2021-10-28 23:49:02,575 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 49 predicate places. [2021-10-28 23:49:02,575 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 131 transitions, 710 flow [2021-10-28 23:49:02,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 102.3076923076923) internal successors, (1330), 13 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:02,576 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:02,576 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] [2021-10-28 23:49:02,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 23:49:02,577 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:02,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:02,577 INFO L85 PathProgramCache]: Analyzing trace with hash 313167365, now seen corresponding path program 4 times [2021-10-28 23:49:02,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:02,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632970943] [2021-10-28 23:49:02,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:02,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:02,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:02,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632970943] [2021-10-28 23:49:02,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632970943] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:02,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:02,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:49:02,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058812093] [2021-10-28 23:49:02,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:49:02,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:02,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:49:02,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:49:02,897 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 124 [2021-10-28 23:49:02,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 131 transitions, 710 flow. Second operand has 12 states, 12 states have (on average 103.33333333333333) internal successors, (1240), 12 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:02,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:02,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 124 [2021-10-28 23:49:02,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:03,495 INFO L129 PetriNetUnfolder]: 281/1033 cut-off events. [2021-10-28 23:49:03,496 INFO L130 PetriNetUnfolder]: For 12046/12510 co-relation queries the response was YES. [2021-10-28 23:49:03,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5397 conditions, 1033 events. 281/1033 cut-off events. For 12046/12510 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7657 event pairs, 65 based on Foata normal form. 29/1016 useless extension candidates. Maximal degree in co-relation 5295. Up to 225 conditions per place. [2021-10-28 23:49:03,521 INFO L132 encePairwiseOnDemand]: 114/124 looper letters, 33 selfloop transitions, 13 changer transitions 10/147 dead transitions. [2021-10-28 23:49:03,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 147 transitions, 1078 flow [2021-10-28 23:49:03,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:49:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 23:49:03,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1365 transitions. [2021-10-28 23:49:03,532 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8467741935483871 [2021-10-28 23:49:03,532 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1365 transitions. [2021-10-28 23:49:03,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1365 transitions. [2021-10-28 23:49:03,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:03,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1365 transitions. [2021-10-28 23:49:03,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:03,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:03,544 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:03,545 INFO L186 Difference]: Start difference. First operand has 180 places, 131 transitions, 710 flow. Second operand 13 states and 1365 transitions. [2021-10-28 23:49:03,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 147 transitions, 1078 flow [2021-10-28 23:49:03,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 147 transitions, 932 flow, removed 60 selfloop flow, removed 13 redundant places. [2021-10-28 23:49:03,583 INFO L242 Difference]: Finished difference. Result has 180 places, 131 transitions, 683 flow [2021-10-28 23:49:03,584 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=683, PETRI_PLACES=180, PETRI_TRANSITIONS=131} [2021-10-28 23:49:03,584 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 49 predicate places. [2021-10-28 23:49:03,584 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 131 transitions, 683 flow [2021-10-28 23:49:03,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 103.33333333333333) internal successors, (1240), 12 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:03,585 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:03,585 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] [2021-10-28 23:49:03,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 23:49:03,586 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:03,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:03,586 INFO L85 PathProgramCache]: Analyzing trace with hash -623959259, now seen corresponding path program 1 times [2021-10-28 23:49:03,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:03,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615393403] [2021-10-28 23:49:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:03,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:03,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:03,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615393403] [2021-10-28 23:49:03,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615393403] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:03,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:03,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:49:03,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699582196] [2021-10-28 23:49:03,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:49:03,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:03,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:49:03,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:49:03,703 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-10-28 23:49:03,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 131 transitions, 683 flow. Second operand has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:03,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:03,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-10-28 23:49:03,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:04,902 INFO L129 PetriNetUnfolder]: 3063/6204 cut-off events. [2021-10-28 23:49:04,902 INFO L130 PetriNetUnfolder]: For 23644/24089 co-relation queries the response was YES. [2021-10-28 23:49:05,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19074 conditions, 6204 events. 3063/6204 cut-off events. For 23644/24089 co-relation queries the response was YES. Maximal size of possible extension queue 858. Compared 56957 event pairs, 435 based on Foata normal form. 16/5217 useless extension candidates. Maximal degree in co-relation 18977. Up to 1690 conditions per place. [2021-10-28 23:49:05,054 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 29 selfloop transitions, 20 changer transitions 0/168 dead transitions. [2021-10-28 23:49:05,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 168 transitions, 855 flow [2021-10-28 23:49:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:49:05,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 23:49:05,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1141 transitions. [2021-10-28 23:49:05,058 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9201612903225806 [2021-10-28 23:49:05,058 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1141 transitions. [2021-10-28 23:49:05,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1141 transitions. [2021-10-28 23:49:05,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:05,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1141 transitions. [2021-10-28 23:49:05,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 114.1) internal successors, (1141), 10 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:05,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:05,067 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:05,067 INFO L186 Difference]: Start difference. First operand has 180 places, 131 transitions, 683 flow. Second operand 10 states and 1141 transitions. [2021-10-28 23:49:05,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 168 transitions, 855 flow [2021-10-28 23:49:05,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 805 flow, removed 17 selfloop flow, removed 12 redundant places. [2021-10-28 23:49:05,157 INFO L242 Difference]: Finished difference. Result has 177 places, 149 transitions, 776 flow [2021-10-28 23:49:05,158 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=776, PETRI_PLACES=177, PETRI_TRANSITIONS=149} [2021-10-28 23:49:05,158 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 46 predicate places. [2021-10-28 23:49:05,158 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 149 transitions, 776 flow [2021-10-28 23:49:05,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:05,159 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:05,159 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] [2021-10-28 23:49:05,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 23:49:05,159 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:05,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:05,160 INFO L85 PathProgramCache]: Analyzing trace with hash -395280817, now seen corresponding path program 1 times [2021-10-28 23:49:05,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:05,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179047600] [2021-10-28 23:49:05,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:05,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:05,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:05,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179047600] [2021-10-28 23:49:05,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179047600] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:05,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:05,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:49:05,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738379999] [2021-10-28 23:49:05,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:49:05,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:05,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:49:05,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:49:05,274 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-10-28 23:49:05,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 149 transitions, 776 flow. Second operand has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:05,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:05,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-10-28 23:49:05,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:06,763 INFO L129 PetriNetUnfolder]: 2841/5770 cut-off events. [2021-10-28 23:49:06,763 INFO L130 PetriNetUnfolder]: For 23488/32685 co-relation queries the response was YES. [2021-10-28 23:49:06,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23612 conditions, 5770 events. 2841/5770 cut-off events. For 23488/32685 co-relation queries the response was YES. Maximal size of possible extension queue 892. Compared 53285 event pairs, 150 based on Foata normal form. 434/5384 useless extension candidates. Maximal degree in co-relation 23518. Up to 2867 conditions per place. [2021-10-28 23:49:06,848 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 34 selfloop transitions, 38 changer transitions 0/191 dead transitions. [2021-10-28 23:49:06,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 191 transitions, 1200 flow [2021-10-28 23:49:06,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:49:06,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 23:49:06,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2021-10-28 23:49:06,852 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9212158808933002 [2021-10-28 23:49:06,852 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2021-10-28 23:49:06,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2021-10-28 23:49:06,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:06,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2021-10-28 23:49:06,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.23076923076923) internal successors, (1485), 13 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:06,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:06,860 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:06,860 INFO L186 Difference]: Start difference. First operand has 177 places, 149 transitions, 776 flow. Second operand 13 states and 1485 transitions. [2021-10-28 23:49:06,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 191 transitions, 1200 flow [2021-10-28 23:49:06,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 191 transitions, 1190 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-10-28 23:49:06,929 INFO L242 Difference]: Finished difference. Result has 192 places, 169 transitions, 1059 flow [2021-10-28 23:49:06,930 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1059, PETRI_PLACES=192, PETRI_TRANSITIONS=169} [2021-10-28 23:49:06,930 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 61 predicate places. [2021-10-28 23:49:06,931 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 169 transitions, 1059 flow [2021-10-28 23:49:06,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:06,931 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:06,931 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] [2021-10-28 23:49:06,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 23:49:06,932 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:06,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:06,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1897705082, now seen corresponding path program 1 times [2021-10-28 23:49:06,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:06,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468045116] [2021-10-28 23:49:06,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:06,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:07,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:07,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468045116] [2021-10-28 23:49:07,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468045116] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:07,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:07,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:49:07,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040837840] [2021-10-28 23:49:07,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:49:07,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:07,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:49:07,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:49:07,039 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-10-28 23:49:07,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 169 transitions, 1059 flow. Second operand has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:07,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:07,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-10-28 23:49:07,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:08,328 INFO L129 PetriNetUnfolder]: 1691/5461 cut-off events. [2021-10-28 23:49:08,329 INFO L130 PetriNetUnfolder]: For 29489/35944 co-relation queries the response was YES. [2021-10-28 23:49:08,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23338 conditions, 5461 events. 1691/5461 cut-off events. For 29489/35944 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 61194 event pairs, 298 based on Foata normal form. 156/4896 useless extension candidates. Maximal degree in co-relation 23238. Up to 1932 conditions per place. [2021-10-28 23:49:08,419 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 14 selfloop transitions, 11 changer transitions 0/183 dead transitions. [2021-10-28 23:49:08,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 183 transitions, 1239 flow [2021-10-28 23:49:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:49:08,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 23:49:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1025 transitions. [2021-10-28 23:49:08,422 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9184587813620072 [2021-10-28 23:49:08,422 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1025 transitions. [2021-10-28 23:49:08,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1025 transitions. [2021-10-28 23:49:08,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:08,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1025 transitions. [2021-10-28 23:49:08,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.88888888888889) internal successors, (1025), 9 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:08,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:08,428 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:08,429 INFO L186 Difference]: Start difference. First operand has 192 places, 169 transitions, 1059 flow. Second operand 9 states and 1025 transitions. [2021-10-28 23:49:08,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 183 transitions, 1239 flow [2021-10-28 23:49:08,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 183 transitions, 1136 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-10-28 23:49:08,727 INFO L242 Difference]: Finished difference. Result has 203 places, 177 transitions, 1105 flow [2021-10-28 23:49:08,728 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1105, PETRI_PLACES=203, PETRI_TRANSITIONS=177} [2021-10-28 23:49:08,728 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 72 predicate places. [2021-10-28 23:49:08,729 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 177 transitions, 1105 flow [2021-10-28 23:49:08,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:08,729 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:08,730 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] [2021-10-28 23:49:08,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 23:49:08,730 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:08,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:08,732 INFO L85 PathProgramCache]: Analyzing trace with hash 945190230, now seen corresponding path program 1 times [2021-10-28 23:49:08,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:08,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667993691] [2021-10-28 23:49:08,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:08,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:08,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:08,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:08,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667993691] [2021-10-28 23:49:08,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667993691] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:08,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:08,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:49:08,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465538261] [2021-10-28 23:49:08,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:49:08,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:08,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:49:08,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:49:08,858 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-10-28 23:49:08,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 177 transitions, 1105 flow. Second operand has 8 states, 8 states have (on average 110.125) internal successors, (881), 8 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:08,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:08,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-10-28 23:49:08,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:10,838 INFO L129 PetriNetUnfolder]: 3997/7721 cut-off events. [2021-10-28 23:49:10,838 INFO L130 PetriNetUnfolder]: For 65229/80825 co-relation queries the response was YES. [2021-10-28 23:49:10,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39824 conditions, 7721 events. 3997/7721 cut-off events. For 65229/80825 co-relation queries the response was YES. Maximal size of possible extension queue 1281. Compared 74059 event pairs, 27 based on Foata normal form. 737/7252 useless extension candidates. Maximal degree in co-relation 39718. Up to 3396 conditions per place. [2021-10-28 23:49:10,970 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 28 selfloop transitions, 58 changer transitions 20/217 dead transitions. [2021-10-28 23:49:10,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 217 transitions, 1723 flow [2021-10-28 23:49:10,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:49:10,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-28 23:49:10,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1829 transitions. [2021-10-28 23:49:10,974 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.921875 [2021-10-28 23:49:10,975 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1829 transitions. [2021-10-28 23:49:10,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1829 transitions. [2021-10-28 23:49:10,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:10,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1829 transitions. [2021-10-28 23:49:10,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 114.3125) internal successors, (1829), 16 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:10,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:10,985 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:10,986 INFO L186 Difference]: Start difference. First operand has 203 places, 177 transitions, 1105 flow. Second operand 16 states and 1829 transitions. [2021-10-28 23:49:10,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 217 transitions, 1723 flow [2021-10-28 23:49:11,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 217 transitions, 1650 flow, removed 23 selfloop flow, removed 6 redundant places. [2021-10-28 23:49:11,371 INFO L242 Difference]: Finished difference. Result has 216 places, 187 transitions, 1335 flow [2021-10-28 23:49:11,372 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1335, PETRI_PLACES=216, PETRI_TRANSITIONS=187} [2021-10-28 23:49:11,372 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 85 predicate places. [2021-10-28 23:49:11,372 INFO L470 AbstractCegarLoop]: Abstraction has has 216 places, 187 transitions, 1335 flow [2021-10-28 23:49:11,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 110.125) internal successors, (881), 8 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:11,373 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:11,373 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] [2021-10-28 23:49:11,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 23:49:11,373 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:11,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash -416727991, now seen corresponding path program 1 times [2021-10-28 23:49:11,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:11,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001520542] [2021-10-28 23:49:11,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:11,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:11,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:11,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001520542] [2021-10-28 23:49:11,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001520542] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:11,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:11,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:49:11,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854657294] [2021-10-28 23:49:11,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:49:11,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:11,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:49:11,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:49:11,521 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-10-28 23:49:11,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 187 transitions, 1335 flow. Second operand has 9 states, 9 states have (on average 110.11111111111111) internal successors, (991), 9 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:11,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:11,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-10-28 23:49:11,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:13,345 INFO L129 PetriNetUnfolder]: 3480/7037 cut-off events. [2021-10-28 23:49:13,345 INFO L130 PetriNetUnfolder]: For 77258/99701 co-relation queries the response was YES. [2021-10-28 23:49:13,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40821 conditions, 7037 events. 3480/7037 cut-off events. For 77258/99701 co-relation queries the response was YES. Maximal size of possible extension queue 1281. Compared 70099 event pairs, 0 based on Foata normal form. 757/6596 useless extension candidates. Maximal degree in co-relation 40762. Up to 2931 conditions per place. [2021-10-28 23:49:13,495 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 22 selfloop transitions, 63 changer transitions 26/219 dead transitions. [2021-10-28 23:49:13,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 219 transitions, 1840 flow [2021-10-28 23:49:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:49:13,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-28 23:49:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2153 transitions. [2021-10-28 23:49:13,502 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9138370118845501 [2021-10-28 23:49:13,502 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2153 transitions. [2021-10-28 23:49:13,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2153 transitions. [2021-10-28 23:49:13,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:13,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2153 transitions. [2021-10-28 23:49:13,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 113.3157894736842) internal successors, (2153), 19 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 124.0) internal successors, (2480), 20 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,517 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 124.0) internal successors, (2480), 20 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:13,517 INFO L186 Difference]: Start difference. First operand has 216 places, 187 transitions, 1335 flow. Second operand 19 states and 2153 transitions. [2021-10-28 23:49:13,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 219 transitions, 1840 flow [2021-10-28 23:49:16,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 219 transitions, 1335 flow, removed 199 selfloop flow, removed 35 redundant places. [2021-10-28 23:49:16,598 INFO L242 Difference]: Finished difference. Result has 200 places, 183 transitions, 1045 flow [2021-10-28 23:49:16,598 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1045, PETRI_PLACES=200, PETRI_TRANSITIONS=183} [2021-10-28 23:49:16,598 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 69 predicate places. [2021-10-28 23:49:16,598 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 183 transitions, 1045 flow [2021-10-28 23:49:16,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.11111111111111) internal successors, (991), 9 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:16,600 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:16,600 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] [2021-10-28 23:49:16,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 23:49:16,601 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:16,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:16,602 INFO L85 PathProgramCache]: Analyzing trace with hash -189438729, now seen corresponding path program 1 times [2021-10-28 23:49:16,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:16,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675778612] [2021-10-28 23:49:16,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:16,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:16,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:16,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675778612] [2021-10-28 23:49:16,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675778612] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:16,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:16,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:49:16,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160067859] [2021-10-28 23:49:16,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:49:16,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:16,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:49:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:49:16,732 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 124 [2021-10-28 23:49:16,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 183 transitions, 1045 flow. Second operand has 7 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:16,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:16,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 124 [2021-10-28 23:49:16,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:18,323 INFO L129 PetriNetUnfolder]: 3909/10332 cut-off events. [2021-10-28 23:49:18,324 INFO L130 PetriNetUnfolder]: For 29643/32199 co-relation queries the response was YES. [2021-10-28 23:49:18,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35299 conditions, 10332 events. 3909/10332 cut-off events. For 29643/32199 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 128366 event pairs, 0 based on Foata normal form. 3/9015 useless extension candidates. Maximal degree in co-relation 35208. Up to 1288 conditions per place. [2021-10-28 23:49:18,459 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 9 selfloop transitions, 1 changer transitions 21/188 dead transitions. [2021-10-28 23:49:18,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 188 transitions, 1091 flow [2021-10-28 23:49:18,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:49:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:49:18,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 786 transitions. [2021-10-28 23:49:18,461 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9055299539170507 [2021-10-28 23:49:18,462 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 786 transitions. [2021-10-28 23:49:18,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 786 transitions. [2021-10-28 23:49:18,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:18,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 786 transitions. [2021-10-28 23:49:18,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 112.28571428571429) internal successors, (786), 7 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:18,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:18,468 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:18,468 INFO L186 Difference]: Start difference. First operand has 200 places, 183 transitions, 1045 flow. Second operand 7 states and 786 transitions. [2021-10-28 23:49:18,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 188 transitions, 1091 flow [2021-10-28 23:49:20,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 188 transitions, 968 flow, removed 8 selfloop flow, removed 17 redundant places. [2021-10-28 23:49:20,726 INFO L242 Difference]: Finished difference. Result has 191 places, 167 transitions, 826 flow [2021-10-28 23:49:20,726 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=826, PETRI_PLACES=191, PETRI_TRANSITIONS=167} [2021-10-28 23:49:20,727 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 60 predicate places. [2021-10-28 23:49:20,727 INFO L470 AbstractCegarLoop]: Abstraction has has 191 places, 167 transitions, 826 flow [2021-10-28 23:49:20,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:20,728 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:20,728 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] [2021-10-28 23:49:20,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 23:49:20,728 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 23:49:20,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:20,729 INFO L85 PathProgramCache]: Analyzing trace with hash 230965957, now seen corresponding path program 2 times [2021-10-28 23:49:20,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:20,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040594365] [2021-10-28 23:49:20,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:20,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:20,773 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:49:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:49:20,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:20,885 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:49:20,886 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:49:20,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:49:20,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:49:20,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 23:49:20,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 23:49:20,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-28 23:49:20,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:49:20,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 23:49:20,893 INFO L731 BasicCegarLoop]: Path program histogram: [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:20,898 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:49:20,898 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:49:21,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:49:21 BasicIcfg [2021-10-28 23:49:21,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:49:21,119 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:49:21,119 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:49:21,119 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:49:21,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:50" (3/4) ... [2021-10-28 23:49:21,122 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:49:21,262 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:49:21,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:49:21,264 INFO L168 Benchmark]: Toolchain (without parser) took 33477.86 ms. Allocated memory was 92.3 MB in the beginning and 7.0 GB in the end (delta: 6.9 GB). Free memory was 55.0 MB in the beginning and 6.1 GB in the end (delta: -6.1 GB). Peak memory consumption was 836.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:21,264 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:49:21,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.40 ms. Allocated memory was 92.3 MB in the beginning and 125.8 MB in the end (delta: 33.6 MB). Free memory was 54.8 MB in the beginning and 87.5 MB in the end (delta: -32.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:21,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.21 ms. Allocated memory is still 125.8 MB. Free memory was 87.5 MB in the beginning and 84.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:21,265 INFO L168 Benchmark]: Boogie Preprocessor took 70.69 ms. Allocated memory is still 125.8 MB. Free memory was 84.2 MB in the beginning and 82.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:21,266 INFO L168 Benchmark]: RCFGBuilder took 1853.77 ms. Allocated memory is still 125.8 MB. Free memory was 82.1 MB in the beginning and 90.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:21,266 INFO L168 Benchmark]: TraceAbstraction took 30747.66 ms. Allocated memory was 125.8 MB in the beginning and 7.0 GB in the end (delta: 6.9 GB). Free memory was 90.4 MB in the beginning and 6.2 GB in the end (delta: -6.1 GB). Peak memory consumption was 800.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:21,266 INFO L168 Benchmark]: Witness Printer took 144.11 ms. Allocated memory is still 7.0 GB. Free memory was 6.2 GB in the beginning and 6.1 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:21,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 586.40 ms. Allocated memory was 92.3 MB in the beginning and 125.8 MB in the end (delta: 33.6 MB). Free memory was 54.8 MB in the beginning and 87.5 MB in the end (delta: -32.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.21 ms. Allocated memory is still 125.8 MB. Free memory was 87.5 MB in the beginning and 84.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.69 ms. Allocated memory is still 125.8 MB. Free memory was 84.2 MB in the beginning and 82.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1853.77 ms. Allocated memory is still 125.8 MB. Free memory was 82.1 MB in the beginning and 90.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30747.66 ms. Allocated memory was 125.8 MB in the beginning and 7.0 GB in the end (delta: 6.9 GB). Free memory was 90.4 MB in the beginning and 6.2 GB in the end (delta: -6.1 GB). Peak memory consumption was 800.8 MB. Max. memory is 16.1 GB. * Witness Printer took 144.11 ms. Allocated memory is still 7.0 GB. Free memory was 6.2 GB in the beginning and 6.1 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0] [L714] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0] [L715] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0] [L716] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L718] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L720] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L722] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L723] 0 _Bool z$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0] [L724] 0 int z$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0] [L725] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L726] 0 _Bool z$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0] [L727] 0 _Bool z$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0] [L728] 0 _Bool z$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0] [L729] 0 _Bool z$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0] [L730] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0] [L731] 0 _Bool z$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0] [L732] 0 _Bool z$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0] [L733] 0 _Bool z$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0] [L734] 0 _Bool z$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0] [L735] 0 _Bool z$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0] [L736] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L737] 0 int z$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0] [L738] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0] [L739] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L740] 0 _Bool z$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L741] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L742] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L834] 0 pthread_t t1517; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L835] FCALL, FORK 0 pthread_create(&t1517, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L836] 0 pthread_t t1518; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L837] FCALL, FORK 0 pthread_create(&t1518, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1519; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L839] FCALL, FORK 0 pthread_create(&t1519, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1520; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L841] FCALL, FORK 0 pthread_create(&t1520, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L796] 4 z$w_buff1 = z$w_buff0 [L797] 4 z$w_buff0 = 2 [L798] 4 z$w_buff1_used = z$w_buff0_used [L799] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L801] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L802] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L803] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L804] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L805] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L806] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L783] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L783] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L784] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L784] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L785] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L785] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L786] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L812] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L812] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L813] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L813] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L814] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L814] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L815] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L816] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L816] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L789] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L819] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L854] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L855] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L856] 0 z$flush_delayed = weak$$choice2 [L857] 0 z$mem_tmp = z [L858] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L858] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 0) [L866] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L866] 0 z = z$flush_delayed ? z$mem_tmp : z [L867] 0 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] 0 reach_error() VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 835]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 841]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 158 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 30.3s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 24.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 201 SDtfs, 698 SDslu, 804 SDs, 0 SdLazy, 1523 SolverSat, 390 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1335occurred in iteration=18, InterpolantAutomatonStates: 239, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1766 NumberOfCodeBlocks, 1766 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1651 ConstructedInterpolants, 0 QuantifiedInterpolants, 9168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:49:21,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168f66fd-5b5f-4172-bcf5-d8507e7e43c3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...