./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f024b1564d266942c6fb6d9d8e063348b6cc44533a81967df0d35639486bddfe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:27,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:27,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:12:27,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:27,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:27,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:27,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:27,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:27,532 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:27,533 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:27,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:27,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:27,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:27,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:27,535 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:27,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:27,536 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:27,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:27,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:27,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:27,537 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:12:27,541 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:12:27,541 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:12:27,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:27,542 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:12:27,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:27,542 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:27,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:27,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:27,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:27,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:27,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:12:27,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:27,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:27,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:27,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:27,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:27,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:12:27,549 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:27,549 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:27,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:27,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:27,550 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f024b1564d266942c6fb6d9d8e063348b6cc44533a81967df0d35639486bddfe [2024-10-31 22:12:27,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:27,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:27,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:27,914 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:27,915 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:27,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i Unable to find full path for "g++" [2024-10-31 22:12:30,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:30,784 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:30,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/sv-benchmarks/c/libvsync/bounded_mpmc_check_full.i [2024-10-31 22:12:30,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/data/160d9060b/10569aea56c04b91b686e6155538b1b5/FLAG18b426cfe [2024-10-31 22:12:30,875 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/data/160d9060b/10569aea56c04b91b686e6155538b1b5 [2024-10-31 22:12:30,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:30,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:30,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:30,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:30,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:30,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:30" (1/1) ... [2024-10-31 22:12:30,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8578f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:30, skipping insertion in model container [2024-10-31 22:12:30,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:30" (1/1) ... [2024-10-31 22:12:31,021 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:33,965 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:12:33,982 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:12:33,985 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:12:33,996 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:12:33,999 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:12:34,244 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:12:34,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:34,263 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:34,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4308] [2024-10-31 22:12:34,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4310] [2024-10-31 22:12:34,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4315] [2024-10-31 22:12:34,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4317] [2024-10-31 22:12:34,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4323] [2024-10-31 22:12:34,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4325] [2024-10-31 22:12:34,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4331] [2024-10-31 22:12:34,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4333] [2024-10-31 22:12:34,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4339] [2024-10-31 22:12:34,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4341] [2024-10-31 22:12:34,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4347] [2024-10-31 22:12:34,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4349] [2024-10-31 22:12:34,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4355] [2024-10-31 22:12:34,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4357] [2024-10-31 22:12:34,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4363] [2024-10-31 22:12:34,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4365] [2024-10-31 22:12:34,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4370] [2024-10-31 22:12:34,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4372] [2024-10-31 22:12:34,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4377] [2024-10-31 22:12:34,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4379] [2024-10-31 22:12:34,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4384] [2024-10-31 22:12:34,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4386] [2024-10-31 22:12:34,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4391] [2024-10-31 22:12:34,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4393] [2024-10-31 22:12:34,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4398] [2024-10-31 22:12:34,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4400] [2024-10-31 22:12:34,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4405] [2024-10-31 22:12:34,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4408] [2024-10-31 22:12:34,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4414] [2024-10-31 22:12:34,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4417] [2024-10-31 22:12:34,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4423] [2024-10-31 22:12:34,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4426] [2024-10-31 22:12:34,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4432] [2024-10-31 22:12:34,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4435] [2024-10-31 22:12:34,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4441] [2024-10-31 22:12:34,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4444] [2024-10-31 22:12:34,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4450] [2024-10-31 22:12:34,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4453] [2024-10-31 22:12:34,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4460] [2024-10-31 22:12:34,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4463] [2024-10-31 22:12:34,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4470] [2024-10-31 22:12:34,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4473] [2024-10-31 22:12:34,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4480] [2024-10-31 22:12:34,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4483] [2024-10-31 22:12:34,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4490] [2024-10-31 22:12:34,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4493] [2024-10-31 22:12:34,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4500] [2024-10-31 22:12:34,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4503] [2024-10-31 22:12:34,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4510] [2024-10-31 22:12:34,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4513] [2024-10-31 22:12:34,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4519] [2024-10-31 22:12:34,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4522] [2024-10-31 22:12:34,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4528] [2024-10-31 22:12:34,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4531] [2024-10-31 22:12:34,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4537] [2024-10-31 22:12:34,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4540] [2024-10-31 22:12:34,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4546] [2024-10-31 22:12:34,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4549] [2024-10-31 22:12:34,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4555] [2024-10-31 22:12:34,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4558] [2024-10-31 22:12:34,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4564] [2024-10-31 22:12:34,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4567] [2024-10-31 22:12:34,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4573] [2024-10-31 22:12:34,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4576] [2024-10-31 22:12:34,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4582] [2024-10-31 22:12:34,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4585] [2024-10-31 22:12:34,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4591] [2024-10-31 22:12:34,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4594] [2024-10-31 22:12:34,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4600] [2024-10-31 22:12:34,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4603] [2024-10-31 22:12:34,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4609] [2024-10-31 22:12:34,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4612] [2024-10-31 22:12:34,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4618] [2024-10-31 22:12:34,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4621] [2024-10-31 22:12:34,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4627] [2024-10-31 22:12:34,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4630] [2024-10-31 22:12:34,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4636] [2024-10-31 22:12:34,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4639] [2024-10-31 22:12:34,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4645] [2024-10-31 22:12:34,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4648] [2024-10-31 22:12:34,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4654] [2024-10-31 22:12:34,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4656] [2024-10-31 22:12:34,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4662] [2024-10-31 22:12:34,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4664] [2024-10-31 22:12:34,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4670] [2024-10-31 22:12:34,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4672] [2024-10-31 22:12:34,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4678] [2024-10-31 22:12:34,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4680] [2024-10-31 22:12:34,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4686] [2024-10-31 22:12:34,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4688] [2024-10-31 22:12:34,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4694] [2024-10-31 22:12:34,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4696] [2024-10-31 22:12:34,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4702] [2024-10-31 22:12:34,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4704] [2024-10-31 22:12:34,480 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4710] [2024-10-31 22:12:34,480 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4712] [2024-10-31 22:12:34,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4718] [2024-10-31 22:12:34,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4720] [2024-10-31 22:12:34,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4726] [2024-10-31 22:12:34,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4728] [2024-10-31 22:12:34,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:34,970 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:34,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34 WrapperNode [2024-10-31 22:12:34,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:34,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:34,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:34,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:34,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,082 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,175 INFO L138 Inliner]: procedures = 914, calls = 957, calls flagged for inlining = 822, calls inlined = 64, statements flattened = 678 [2024-10-31 22:12:35,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:35,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:35,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:35,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:35,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,240 INFO L175 MemorySlicer]: Split 65 memory accesses to 5 slices as follows [2, 9, 8, 44, 2]. 68 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 4, 6, 0]. The 20 writes are split as follows [0, 2, 3, 14, 1]. [2024-10-31 22:12:35,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:35,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:35,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:35,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:35,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (1/1) ... [2024-10-31 22:12:35,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:35,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:35,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:35,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4436aba-da63-4ad9-b02b-e2c9cabc72c4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:35,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:12:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:12:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:12:35,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:12:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-31 22:12:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:12:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:12:35,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:12:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 22:12:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-31 22:12:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:12:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:12:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:12:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:12:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 22:12:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-31 22:12:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:12:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:12:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:12:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:12:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-31 22:12:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:12:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-10-31 22:12:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-10-31 22:12:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 22:12:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 22:12:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-31 22:12:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-31 22:12:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-31 22:12:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:12:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:12:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:12:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:12:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:12:35,391 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:12:35,719 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:35,728 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:37,083 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:12:37,083 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:37,769 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:37,771 INFO L316 CfgBuilder]: Removed 41 assume(true) statements. [2024-10-31 22:12:37,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:37 BoogieIcfgContainer [2024-10-31 22:12:37,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:37,776 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:37,776 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:37,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:37,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:30" (1/3) ... [2024-10-31 22:12:37,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6faa63f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:37, skipping insertion in model container [2024-10-31 22:12:37,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:34" (2/3) ... [2024-10-31 22:12:37,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6faa63f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:37, skipping insertion in model container [2024-10-31 22:12:37,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:37" (3/3) ... [2024-10-31 22:12:37,785 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_mpmc_check_full.i [2024-10-31 22:12:37,807 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:37,807 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 104 error locations. [2024-10-31 22:12:37,807 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:12:37,936 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:12:37,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 319 transitions, 645 flow [2024-10-31 22:12:38,195 INFO L124 PetriNetUnfolderBase]: 108/544 cut-off events. [2024-10-31 22:12:38,195 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:12:38,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 544 events. 108/544 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2506 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 272. Up to 6 conditions per place. [2024-10-31 22:12:38,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 319 transitions, 645 flow [2024-10-31 22:12:38,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 319 transitions, 645 flow [2024-10-31 22:12:38,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:38,255 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48b5bce6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:38,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 125 error locations. [2024-10-31 22:12:38,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:12:38,263 INFO L124 PetriNetUnfolderBase]: 6/16 cut-off events. [2024-10-31 22:12:38,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:12:38,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:38,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:12:38,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:38,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:38,270 INFO L85 PathProgramCache]: Analyzing trace with hash 69391337, now seen corresponding path program 1 times [2024-10-31 22:12:38,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:38,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445289284] [2024-10-31 22:12:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:38,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:38,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:38,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445289284] [2024-10-31 22:12:38,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445289284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:38,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:38,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714923692] [2024-10-31 22:12:38,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:38,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:12:38,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:38,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:12:38,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:12:38,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 319 [2024-10-31 22:12:38,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 319 transitions, 645 flow. Second operand has 2 states, 2 states have (on average 109.5) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:38,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:38,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 319 [2024-10-31 22:12:38,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:40,321 INFO L124 PetriNetUnfolderBase]: 2857/7220 cut-off events. [2024-10-31 22:12:40,346 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:12:40,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12582 conditions, 7220 events. 2857/7220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 56284 event pairs, 2276 based on Foata normal form. 792/5197 useless extension candidates. Maximal degree in co-relation 12246. Up to 5357 conditions per place. [2024-10-31 22:12:40,393 INFO L140 encePairwiseOnDemand]: 263/319 looper letters, 148 selfloop transitions, 0 changer transitions 0/256 dead transitions. [2024-10-31 22:12:40,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 256 transitions, 815 flow [2024-10-31 22:12:40,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:12:40,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:12:40,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 420 transitions. [2024-10-31 22:12:40,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.658307210031348 [2024-10-31 22:12:40,415 INFO L175 Difference]: Start difference. First operand has 261 places, 319 transitions, 645 flow. Second operand 2 states and 420 transitions. [2024-10-31 22:12:40,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 256 transitions, 815 flow [2024-10-31 22:12:40,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 256 transitions, 815 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:40,430 INFO L231 Difference]: Finished difference. Result has 247 places, 256 transitions, 519 flow [2024-10-31 22:12:40,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=519, PETRI_PLACES=247, PETRI_TRANSITIONS=256} [2024-10-31 22:12:40,438 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -14 predicate places. [2024-10-31 22:12:40,438 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 256 transitions, 519 flow [2024-10-31 22:12:40,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 109.5) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:40,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:40,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:12:40,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:12:40,440 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:40,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:40,442 INFO L85 PathProgramCache]: Analyzing trace with hash 69386158, now seen corresponding path program 1 times [2024-10-31 22:12:40,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:40,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041802447] [2024-10-31 22:12:40,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:40,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:40,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:40,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041802447] [2024-10-31 22:12:40,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041802447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:40,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:40,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:40,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005500777] [2024-10-31 22:12:40,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:40,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:40,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:40,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:40,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:40,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 319 [2024-10-31 22:12:40,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 256 transitions, 519 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:40,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:40,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 319 [2024-10-31 22:12:40,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:42,275 INFO L124 PetriNetUnfolderBase]: 2857/7217 cut-off events. [2024-10-31 22:12:42,275 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:12:42,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12579 conditions, 7217 events. 2857/7217 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 56285 event pairs, 2276 based on Foata normal form. 1/4403 useless extension candidates. Maximal degree in co-relation 12575. Up to 5338 conditions per place. [2024-10-31 22:12:42,324 INFO L140 encePairwiseOnDemand]: 316/319 looper letters, 145 selfloop transitions, 2 changer transitions 0/253 dead transitions. [2024-10-31 22:12:42,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 253 transitions, 807 flow [2024-10-31 22:12:42,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:42,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:42,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 472 transitions. [2024-10-31 22:12:42,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49320794148380354 [2024-10-31 22:12:42,327 INFO L175 Difference]: Start difference. First operand has 247 places, 256 transitions, 519 flow. Second operand 3 states and 472 transitions. [2024-10-31 22:12:42,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 253 transitions, 807 flow [2024-10-31 22:12:42,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 253 transitions, 807 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:12:42,340 INFO L231 Difference]: Finished difference. Result has 246 places, 253 transitions, 517 flow [2024-10-31 22:12:42,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=246, PETRI_TRANSITIONS=253} [2024-10-31 22:12:42,342 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -15 predicate places. [2024-10-31 22:12:42,344 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 253 transitions, 517 flow [2024-10-31 22:12:42,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:42,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:42,345 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:12:42,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:12:42,345 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:42,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:42,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2032966479, now seen corresponding path program 1 times [2024-10-31 22:12:42,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:42,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328891777] [2024-10-31 22:12:42,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:42,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:42,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:42,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328891777] [2024-10-31 22:12:42,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328891777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:42,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:42,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:12:42,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706280038] [2024-10-31 22:12:42,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:42,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:42,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:42,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:42,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:42,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 319 [2024-10-31 22:12:42,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 253 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:42,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:42,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 319 [2024-10-31 22:12:42,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:44,269 INFO L124 PetriNetUnfolderBase]: 2857/7215 cut-off events. [2024-10-31 22:12:44,269 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:12:44,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12580 conditions, 7215 events. 2857/7215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 56280 event pairs, 2276 based on Foata normal form. 1/4403 useless extension candidates. Maximal degree in co-relation 12575. Up to 5338 conditions per place. [2024-10-31 22:12:44,316 INFO L140 encePairwiseOnDemand]: 315/319 looper letters, 145 selfloop transitions, 2 changer transitions 0/251 dead transitions. [2024-10-31 22:12:44,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 251 transitions, 807 flow [2024-10-31 22:12:44,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:44,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions. [2024-10-31 22:12:44,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48798328108672934 [2024-10-31 22:12:44,320 INFO L175 Difference]: Start difference. First operand has 246 places, 253 transitions, 517 flow. Second operand 3 states and 467 transitions. [2024-10-31 22:12:44,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 251 transitions, 807 flow [2024-10-31 22:12:44,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 251 transitions, 803 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:44,327 INFO L231 Difference]: Finished difference. Result has 244 places, 251 transitions, 513 flow [2024-10-31 22:12:44,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=244, PETRI_TRANSITIONS=251} [2024-10-31 22:12:44,329 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -17 predicate places. [2024-10-31 22:12:44,329 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 251 transitions, 513 flow [2024-10-31 22:12:44,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:44,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:44,330 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:12:44,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:12:44,331 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:44,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:44,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2032966478, now seen corresponding path program 1 times [2024-10-31 22:12:44,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:44,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009908323] [2024-10-31 22:12:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:44,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:44,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:44,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009908323] [2024-10-31 22:12:44,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009908323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:44,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:44,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:12:44,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025391928] [2024-10-31 22:12:44,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:44,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:44,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:44,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:44,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:44,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 319 [2024-10-31 22:12:44,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 251 transitions, 513 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:44,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:44,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 319 [2024-10-31 22:12:44,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:46,076 INFO L124 PetriNetUnfolderBase]: 2857/7213 cut-off events. [2024-10-31 22:12:46,076 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:12:46,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12578 conditions, 7213 events. 2857/7213 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 56277 event pairs, 2276 based on Foata normal form. 1/4402 useless extension candidates. Maximal degree in co-relation 12573. Up to 5338 conditions per place. [2024-10-31 22:12:46,115 INFO L140 encePairwiseOnDemand]: 315/319 looper letters, 145 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2024-10-31 22:12:46,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 249 transitions, 803 flow [2024-10-31 22:12:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:46,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions. [2024-10-31 22:12:46,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48798328108672934 [2024-10-31 22:12:46,118 INFO L175 Difference]: Start difference. First operand has 244 places, 251 transitions, 513 flow. Second operand 3 states and 467 transitions. [2024-10-31 22:12:46,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 249 transitions, 803 flow [2024-10-31 22:12:46,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 249 transitions, 799 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:46,124 INFO L231 Difference]: Finished difference. Result has 242 places, 249 transitions, 509 flow [2024-10-31 22:12:46,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=509, PETRI_PLACES=242, PETRI_TRANSITIONS=249} [2024-10-31 22:12:46,125 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -19 predicate places. [2024-10-31 22:12:46,125 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 249 transitions, 509 flow [2024-10-31 22:12:46,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:46,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:46,126 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:12:46,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:12:46,127 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:46,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:46,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2032968655, now seen corresponding path program 1 times [2024-10-31 22:12:46,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:46,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310385012] [2024-10-31 22:12:46,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:46,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:46,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:46,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310385012] [2024-10-31 22:12:46,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310385012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:46,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:46,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:46,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792602325] [2024-10-31 22:12:46,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:46,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:46,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:46,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:46,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:46,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 319 [2024-10-31 22:12:46,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 249 transitions, 509 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:46,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:46,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 319 [2024-10-31 22:12:46,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:47,464 INFO L124 PetriNetUnfolderBase]: 2857/7210 cut-off events. [2024-10-31 22:12:47,464 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:12:47,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12574 conditions, 7210 events. 2857/7210 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 56287 event pairs, 2276 based on Foata normal form. 1/4399 useless extension candidates. Maximal degree in co-relation 12569. Up to 5338 conditions per place. [2024-10-31 22:12:47,503 INFO L140 encePairwiseOnDemand]: 316/319 looper letters, 144 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2024-10-31 22:12:47,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 246 transitions, 795 flow [2024-10-31 22:12:47,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:47,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:12:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2024-10-31 22:12:47,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49216300940438873 [2024-10-31 22:12:47,506 INFO L175 Difference]: Start difference. First operand has 242 places, 249 transitions, 509 flow. Second operand 3 states and 471 transitions. [2024-10-31 22:12:47,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 246 transitions, 795 flow [2024-10-31 22:12:47,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 246 transitions, 791 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:47,511 INFO L231 Difference]: Finished difference. Result has 239 places, 246 transitions, 503 flow [2024-10-31 22:12:47,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=503, PETRI_PLACES=239, PETRI_TRANSITIONS=246} [2024-10-31 22:12:47,512 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -22 predicate places. [2024-10-31 22:12:47,513 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 246 transitions, 503 flow [2024-10-31 22:12:47,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:47,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:47,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:47,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:12:47,514 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:47,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:47,515 INFO L85 PathProgramCache]: Analyzing trace with hash 529406375, now seen corresponding path program 1 times [2024-10-31 22:12:47,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:47,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492561987] [2024-10-31 22:12:47,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:47,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:47,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:47,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492561987] [2024-10-31 22:12:47,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492561987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:47,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:47,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:12:47,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124318900] [2024-10-31 22:12:47,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:47,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:47,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:47,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:47,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:47,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 319 [2024-10-31 22:12:47,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 246 transitions, 503 flow. Second operand has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:47,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:47,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 319 [2024-10-31 22:12:47,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:49,496 INFO L124 PetriNetUnfolderBase]: 2857/7209 cut-off events. [2024-10-31 22:12:49,496 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:12:49,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12573 conditions, 7209 events. 2857/7209 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 56333 event pairs, 2198 based on Foata normal form. 0/4401 useless extension candidates. Maximal degree in co-relation 12568. Up to 5170 conditions per place. [2024-10-31 22:12:49,541 INFO L140 encePairwiseOnDemand]: 305/319 looper letters, 165 selfloop transitions, 10 changer transitions 0/274 dead transitions. [2024-10-31 22:12:49,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 274 transitions, 909 flow [2024-10-31 22:12:49,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:12:49,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:12:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 704 transitions. [2024-10-31 22:12:49,545 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4413793103448276 [2024-10-31 22:12:49,545 INFO L175 Difference]: Start difference. First operand has 239 places, 246 transitions, 503 flow. Second operand 5 states and 704 transitions. [2024-10-31 22:12:49,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 274 transitions, 909 flow [2024-10-31 22:12:49,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 274 transitions, 905 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:12:49,554 INFO L231 Difference]: Finished difference. Result has 238 places, 246 transitions, 534 flow [2024-10-31 22:12:49,554 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=534, PETRI_PLACES=238, PETRI_TRANSITIONS=246} [2024-10-31 22:12:49,555 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -23 predicate places. [2024-10-31 22:12:49,555 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 246 transitions, 534 flow [2024-10-31 22:12:49,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:49,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:49,556 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:49,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:12:49,557 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:49,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:49,557 INFO L85 PathProgramCache]: Analyzing trace with hash 529406376, now seen corresponding path program 1 times [2024-10-31 22:12:49,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:49,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498391595] [2024-10-31 22:12:49,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:49,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:49,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:49,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:49,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498391595] [2024-10-31 22:12:49,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498391595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:49,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:49,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:49,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138818275] [2024-10-31 22:12:49,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:49,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:49,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:49,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:49,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:49,949 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 319 [2024-10-31 22:12:49,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 246 transitions, 534 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:49,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:49,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 319 [2024-10-31 22:12:49,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:51,659 INFO L124 PetriNetUnfolderBase]: 2857/7208 cut-off events. [2024-10-31 22:12:51,659 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2024-10-31 22:12:51,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12919 conditions, 7208 events. 2857/7208 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 56315 event pairs, 2273 based on Foata normal form. 0/4574 useless extension candidates. Maximal degree in co-relation 12913. Up to 5341 conditions per place. [2024-10-31 22:12:51,717 INFO L140 encePairwiseOnDemand]: 314/319 looper letters, 141 selfloop transitions, 4 changer transitions 0/245 dead transitions. [2024-10-31 22:12:51,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 245 transitions, 822 flow [2024-10-31 22:12:51,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:51,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:12:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 566 transitions. [2024-10-31 22:12:51,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44357366771159873 [2024-10-31 22:12:51,721 INFO L175 Difference]: Start difference. First operand has 238 places, 246 transitions, 534 flow. Second operand 4 states and 566 transitions. [2024-10-31 22:12:51,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 245 transitions, 822 flow [2024-10-31 22:12:51,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 245 transitions, 809 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:12:51,744 INFO L231 Difference]: Finished difference. Result has 237 places, 245 transitions, 527 flow [2024-10-31 22:12:51,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=527, PETRI_PLACES=237, PETRI_TRANSITIONS=245} [2024-10-31 22:12:51,745 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -24 predicate places. [2024-10-31 22:12:51,746 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 245 transitions, 527 flow [2024-10-31 22:12:51,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:51,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:51,747 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:51,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:12:51,747 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:51,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:51,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1953455503, now seen corresponding path program 1 times [2024-10-31 22:12:51,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:51,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425981062] [2024-10-31 22:12:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:51,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:52,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:52,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425981062] [2024-10-31 22:12:52,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425981062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:52,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:52,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:52,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106080096] [2024-10-31 22:12:52,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:52,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:52,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:52,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:52,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:52,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 319 [2024-10-31 22:12:52,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 245 transitions, 527 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:52,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:52,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 319 [2024-10-31 22:12:52,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:53,445 INFO L124 PetriNetUnfolderBase]: 2857/7207 cut-off events. [2024-10-31 22:12:53,445 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-10-31 22:12:53,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12831 conditions, 7207 events. 2857/7207 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 56358 event pairs, 2273 based on Foata normal form. 0/4574 useless extension candidates. Maximal degree in co-relation 12825. Up to 5341 conditions per place. [2024-10-31 22:12:53,482 INFO L140 encePairwiseOnDemand]: 314/319 looper letters, 140 selfloop transitions, 4 changer transitions 0/244 dead transitions. [2024-10-31 22:12:53,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 244 transitions, 813 flow [2024-10-31 22:12:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:12:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 565 transitions. [2024-10-31 22:12:53,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4427899686520376 [2024-10-31 22:12:53,485 INFO L175 Difference]: Start difference. First operand has 237 places, 245 transitions, 527 flow. Second operand 4 states and 565 transitions. [2024-10-31 22:12:53,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 244 transitions, 813 flow [2024-10-31 22:12:53,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 244 transitions, 805 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:12:53,493 INFO L231 Difference]: Finished difference. Result has 236 places, 244 transitions, 525 flow [2024-10-31 22:12:53,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=525, PETRI_PLACES=236, PETRI_TRANSITIONS=244} [2024-10-31 22:12:53,494 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -25 predicate places. [2024-10-31 22:12:53,494 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 244 transitions, 525 flow [2024-10-31 22:12:53,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:53,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:53,495 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:53,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:12:53,495 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:53,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:53,496 INFO L85 PathProgramCache]: Analyzing trace with hash 370100778, now seen corresponding path program 1 times [2024-10-31 22:12:53,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:53,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063681672] [2024-10-31 22:12:53,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:53,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:53,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:53,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063681672] [2024-10-31 22:12:53,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063681672] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:53,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:53,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:53,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695901068] [2024-10-31 22:12:53,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:53,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:53,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:53,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:53,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:54,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 319 [2024-10-31 22:12:54,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 244 transitions, 525 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:54,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:54,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 319 [2024-10-31 22:12:54,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:55,058 INFO L124 PetriNetUnfolderBase]: 2857/7206 cut-off events. [2024-10-31 22:12:55,058 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-10-31 22:12:55,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12829 conditions, 7206 events. 2857/7206 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 56345 event pairs, 2273 based on Foata normal form. 0/4574 useless extension candidates. Maximal degree in co-relation 12823. Up to 5341 conditions per place. [2024-10-31 22:12:55,094 INFO L140 encePairwiseOnDemand]: 314/319 looper letters, 139 selfloop transitions, 4 changer transitions 0/243 dead transitions. [2024-10-31 22:12:55,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 243 transitions, 809 flow [2024-10-31 22:12:55,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:55,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:12:55,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 564 transitions. [2024-10-31 22:12:55,097 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44200626959247646 [2024-10-31 22:12:55,097 INFO L175 Difference]: Start difference. First operand has 236 places, 244 transitions, 525 flow. Second operand 4 states and 564 transitions. [2024-10-31 22:12:55,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 243 transitions, 809 flow [2024-10-31 22:12:55,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 243 transitions, 801 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:12:55,106 INFO L231 Difference]: Finished difference. Result has 235 places, 243 transitions, 523 flow [2024-10-31 22:12:55,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=523, PETRI_PLACES=235, PETRI_TRANSITIONS=243} [2024-10-31 22:12:55,107 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -26 predicate places. [2024-10-31 22:12:55,107 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 243 transitions, 523 flow [2024-10-31 22:12:55,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:55,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:55,108 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:55,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:12:55,109 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:55,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:55,109 INFO L85 PathProgramCache]: Analyzing trace with hash -815361946, now seen corresponding path program 1 times [2024-10-31 22:12:55,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:55,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281427058] [2024-10-31 22:12:55,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:55,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:55,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:55,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281427058] [2024-10-31 22:12:55,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281427058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:55,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:55,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:55,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691336775] [2024-10-31 22:12:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:55,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:55,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:55,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:55,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:55,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 319 [2024-10-31 22:12:55,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 243 transitions, 523 flow. Second operand has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:55,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:12:55,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 319 [2024-10-31 22:12:55,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:12:56,705 INFO L124 PetriNetUnfolderBase]: 2857/7205 cut-off events. [2024-10-31 22:12:56,705 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-10-31 22:12:56,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12827 conditions, 7205 events. 2857/7205 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 56312 event pairs, 2273 based on Foata normal form. 0/4574 useless extension candidates. Maximal degree in co-relation 12821. Up to 5341 conditions per place. [2024-10-31 22:12:56,743 INFO L140 encePairwiseOnDemand]: 315/319 looper letters, 139 selfloop transitions, 3 changer transitions 0/242 dead transitions. [2024-10-31 22:12:56,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 242 transitions, 805 flow [2024-10-31 22:12:56,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:12:56,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 563 transitions. [2024-10-31 22:12:56,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44122257053291536 [2024-10-31 22:12:56,745 INFO L175 Difference]: Start difference. First operand has 235 places, 243 transitions, 523 flow. Second operand 4 states and 563 transitions. [2024-10-31 22:12:56,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 242 transitions, 805 flow [2024-10-31 22:12:56,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 242 transitions, 797 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:12:56,753 INFO L231 Difference]: Finished difference. Result has 234 places, 242 transitions, 519 flow [2024-10-31 22:12:56,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=519, PETRI_PLACES=234, PETRI_TRANSITIONS=242} [2024-10-31 22:12:56,754 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -27 predicate places. [2024-10-31 22:12:56,755 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 242 transitions, 519 flow [2024-10-31 22:12:56,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:56,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:12:56,755 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:56,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:12:56,756 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 122 more)] === [2024-10-31 22:12:56,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:56,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1889529234, now seen corresponding path program 1 times [2024-10-31 22:12:56,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:56,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082985050] [2024-10-31 22:12:56,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:56,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat