./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/libvsync/bounded_mpmc_check_empty.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/libvsync/bounded_mpmc_check_empty.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d32fe1c21688ba35bf4df709c44c653627e880728901b145cb85c74d8074e0d5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:09:02,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:09:02,587 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 01:09:02,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:09:02,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:09:02,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:09:02,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:09:02,646 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:09:02,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:09:02,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:09:02,649 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:09:02,651 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:09:02,651 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:09:02,652 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:09:02,652 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:09:02,659 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:09:02,660 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:09:02,660 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:09:02,661 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:09:02,661 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:09:02,661 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:09:02,665 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:09:02,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:09:02,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:09:02,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:09:02,667 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:09:02,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:09:02,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:09:02,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:09:02,668 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 01:09:02,669 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 01:09:02,669 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 01:09:02,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:09:02,669 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:09:02,674 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:09:02,674 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:09:02,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:09:02,676 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:09:02,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:09:02,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:09:02,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:09:02,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:09:02,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:09:02,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:09:02,679 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:09:02,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:09:02,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:09:02,680 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:09:02,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:09:02,685 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d32fe1c21688ba35bf4df709c44c653627e880728901b145cb85c74d8074e0d5 [2024-11-09 01:09:03,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:09:03,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:09:03,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:09:03,100 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:09:03,100 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:09:03,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/libvsync/bounded_mpmc_check_empty.i Unable to find full path for "g++" [2024-11-09 01:09:05,190 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:09:05,655 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:09:05,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/sv-benchmarks/c/libvsync/bounded_mpmc_check_empty.i [2024-11-09 01:09:05,704 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/data/64b065f81/4d2362bf672948a9aeb35fc4b2858f42/FLAG656fdc641 [2024-11-09 01:09:05,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/data/64b065f81/4d2362bf672948a9aeb35fc4b2858f42 [2024-11-09 01:09:05,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:09:05,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:09:05,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:09:05,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:09:05,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:09:05,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:09:05" (1/1) ... [2024-11-09 01:09:05,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9374d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:05, skipping insertion in model container [2024-11-09 01:09:05,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:09:05" (1/1) ... [2024-11-09 01:09:05,939 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:09:09,076 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:09:09,084 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:09:09,085 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:09:09,093 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:09:09,094 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:09:09,360 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:09:09,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:09:09,384 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:09:09,543 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4308] [2024-11-09 01:09:09,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4310] [2024-11-09 01:09:09,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4315] [2024-11-09 01:09:09,546 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4317] [2024-11-09 01:09:09,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4323] [2024-11-09 01:09:09,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4325] [2024-11-09 01:09:09,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4331] [2024-11-09 01:09:09,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4333] [2024-11-09 01:09:09,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4339] [2024-11-09 01:09:09,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4341] [2024-11-09 01:09:09,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4347] [2024-11-09 01:09:09,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4349] [2024-11-09 01:09:09,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4355] [2024-11-09 01:09:09,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4357] [2024-11-09 01:09:09,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4363] [2024-11-09 01:09:09,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4365] [2024-11-09 01:09:09,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4370] [2024-11-09 01:09:09,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4372] [2024-11-09 01:09:09,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4377] [2024-11-09 01:09:09,556 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4379] [2024-11-09 01:09:09,556 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4384] [2024-11-09 01:09:09,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4386] [2024-11-09 01:09:09,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4391] [2024-11-09 01:09:09,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4393] [2024-11-09 01:09:09,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4398] [2024-11-09 01:09:09,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4400] [2024-11-09 01:09:09,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4405] [2024-11-09 01:09:09,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4408] [2024-11-09 01:09:09,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4414] [2024-11-09 01:09:09,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4417] [2024-11-09 01:09:09,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4423] [2024-11-09 01:09:09,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4426] [2024-11-09 01:09:09,563 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4432] [2024-11-09 01:09:09,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4435] [2024-11-09 01:09:09,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4441] [2024-11-09 01:09:09,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4444] [2024-11-09 01:09:09,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4450] [2024-11-09 01:09:09,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4453] [2024-11-09 01:09:09,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4460] [2024-11-09 01:09:09,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4463] [2024-11-09 01:09:09,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4470] [2024-11-09 01:09:09,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4473] [2024-11-09 01:09:09,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4480] [2024-11-09 01:09:09,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4483] [2024-11-09 01:09:09,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4490] [2024-11-09 01:09:09,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4493] [2024-11-09 01:09:09,573 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4500] [2024-11-09 01:09:09,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4503] [2024-11-09 01:09:09,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4510] [2024-11-09 01:09:09,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4513] [2024-11-09 01:09:09,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4519] [2024-11-09 01:09:09,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4522] [2024-11-09 01:09:09,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4528] [2024-11-09 01:09:09,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4531] [2024-11-09 01:09:09,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4537] [2024-11-09 01:09:09,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4540] [2024-11-09 01:09:09,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4546] [2024-11-09 01:09:09,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4549] [2024-11-09 01:09:09,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4555] [2024-11-09 01:09:09,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4558] [2024-11-09 01:09:09,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4564] [2024-11-09 01:09:09,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4567] [2024-11-09 01:09:09,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4573] [2024-11-09 01:09:09,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4576] [2024-11-09 01:09:09,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4582] [2024-11-09 01:09:09,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4585] [2024-11-09 01:09:09,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4591] [2024-11-09 01:09:09,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4594] [2024-11-09 01:09:09,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4600] [2024-11-09 01:09:09,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4603] [2024-11-09 01:09:09,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4609] [2024-11-09 01:09:09,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4612] [2024-11-09 01:09:09,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4618] [2024-11-09 01:09:09,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4621] [2024-11-09 01:09:09,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4627] [2024-11-09 01:09:09,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4630] [2024-11-09 01:09:09,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4636] [2024-11-09 01:09:09,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4639] [2024-11-09 01:09:09,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4645] [2024-11-09 01:09:09,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4648] [2024-11-09 01:09:09,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4654] [2024-11-09 01:09:09,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4656] [2024-11-09 01:09:09,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4662] [2024-11-09 01:09:09,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4664] [2024-11-09 01:09:09,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4670] [2024-11-09 01:09:09,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4672] [2024-11-09 01:09:09,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4678] [2024-11-09 01:09:09,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4680] [2024-11-09 01:09:09,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4686] [2024-11-09 01:09:09,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4688] [2024-11-09 01:09:09,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4694] [2024-11-09 01:09:09,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4696] [2024-11-09 01:09:09,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4702] [2024-11-09 01:09:09,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4704] [2024-11-09 01:09:09,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4710] [2024-11-09 01:09:09,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4712] [2024-11-09 01:09:09,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4718] [2024-11-09 01:09:09,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4720] [2024-11-09 01:09:09,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4726] [2024-11-09 01:09:09,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4728] [2024-11-09 01:09:09,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:09:10,076 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:09:10,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10 WrapperNode [2024-11-09 01:09:10,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:09:10,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:09:10,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:09:10,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:09:10,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,293 INFO L138 Inliner]: procedures = 915, calls = 983, calls flagged for inlining = 827, calls inlined = 71, statements flattened = 763 [2024-11-09 01:09:10,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:09:10,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:09:10,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:09:10,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:09:10,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,314 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:09:10,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:09:10,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:09:10,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:09:10,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (1/1) ... [2024-11-09 01:09:10,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:09:10,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:09:10,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:09:10,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6f47922-d71c-4d88-a940-3309453e8ff1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:09:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-11-09 01:09:10,458 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-11-09 01:09:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:09:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:09:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:09:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:09:10,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:09:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:09:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:09:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:09:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:09:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-11-09 01:09:10,462 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-11-09 01:09:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 01:09:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:09:10,464 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 01:09:10,745 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:09:10,749 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:09:12,193 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 01:09:12,194 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:09:12,961 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:09:12,965 INFO L316 CfgBuilder]: Removed 62 assume(true) statements. [2024-11-09 01:09:12,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:09:12 BoogieIcfgContainer [2024-11-09 01:09:12,965 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:09:12,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:09:12,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:09:12,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:09:12,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:09:05" (1/3) ... [2024-11-09 01:09:12,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac8d932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:09:12, skipping insertion in model container [2024-11-09 01:09:12,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:10" (2/3) ... [2024-11-09 01:09:12,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac8d932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:09:12, skipping insertion in model container [2024-11-09 01:09:12,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:09:12" (3/3) ... [2024-11-09 01:09:12,980 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_mpmc_check_empty.i [2024-11-09 01:09:13,003 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:09:13,003 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 110 error locations. [2024-11-09 01:09:13,004 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 01:09:13,249 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 01:09:13,295 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 320 places, 408 transitions, 830 flow [2024-11-09 01:09:31,826 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 579869 states, 545596 states have (on average 3.957041473911099) internal successors, (2158946), 579868 states have internal predecessors, (2158946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:09:31,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:09:31,916 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=FINITE_AUTOMATA, 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;@12166144, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:09:31,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 168 error locations. [2024-11-09 01:09:32,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 579869 states, 545596 states have (on average 3.957041473911099) internal successors, (2158946), 579868 states have internal predecessors, (2158946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:09:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 01:09:32,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:32,812 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 01:09:32,813 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 165 more)] === [2024-11-09 01:09:32,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:32,823 INFO L85 PathProgramCache]: Analyzing trace with hash 80055258, now seen corresponding path program 1 times [2024-11-09 01:09:32,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:32,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949872608] [2024-11-09 01:09:32,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:32,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:33,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:09:33,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:33,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949872608] [2024-11-09 01:09:33,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949872608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:33,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:09:33,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:09:33,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047441970] [2024-11-09 01:09:33,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:33,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:09:33,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:33,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:09:33,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:09:34,169 INFO L87 Difference]: Start difference. First operand has 579869 states, 545596 states have (on average 3.957041473911099) internal successors, (2158946), 579868 states have internal predecessors, (2158946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:09:55,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:55,475 INFO L93 Difference]: Finished difference Result 1080858 states and 4094708 transitions. [2024-11-09 01:09:55,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:09:55,477 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 01:09:55,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted.