./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya --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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:34:39,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:34:39,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-29 00:34:39,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:34:39,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:34:39,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:34:39,278 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:34:39,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:34:39,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:34:39,280 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:34:39,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:34:39,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:34:39,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:34:39,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:34:39,283 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:34:39,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:34:39,284 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:34:39,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:34:39,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:34:39,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:34:39,286 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 00:34:39,286 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 00:34:39,287 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 00:34:39,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:34:39,288 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:34:39,288 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:34:39,289 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:34:39,289 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:34:39,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:34:39,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:34:39,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:34:39,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:34:39,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:34:39,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:34:39,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:34:39,292 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:34:39,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:34:39,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:34:39,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:34:39,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:34:39,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:34:39,293 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_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2023-11-29 00:34:39,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:34:39,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:34:39,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:34:39,598 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:34:39,598 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:34:39,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-29 00:34:42,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:34:43,026 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:34:43,026 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-29 00:34:43,051 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/data/09ae3061c/f49da5da5dd14f4382ce45aa585a8ec1/FLAG3c583ac26 [2023-11-29 00:34:43,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/data/09ae3061c/f49da5da5dd14f4382ce45aa585a8ec1 [2023-11-29 00:34:43,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:34:43,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:34:43,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:34:43,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:34:43,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:34:43,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:34:43" (1/1) ... [2023-11-29 00:34:43,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce3397a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:43, skipping insertion in model container [2023-11-29 00:34:43,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:34:43" (1/1) ... [2023-11-29 00:34:43,155 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:34:43,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:34:43,832 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 00:34:43,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c2e76ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:43, skipping insertion in model container [2023-11-29 00:34:43,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:34:43,833 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 00:34:43,835 INFO L158 Benchmark]: Toolchain (without parser) took 763.00ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 85.7MB in the end (delta: 21.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 00:34:43,836 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 116.7MB in the end (delta: 139.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:34:43,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 760.43ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 85.7MB in the end (delta: 20.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 00:34:43,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 116.7MB in the end (delta: 139.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 760.43ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 85.7MB in the end (delta: 20.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1514]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya --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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:34:45,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:34:45,781 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-29 00:34:45,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:34:45,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:34:45,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:34:45,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:34:45,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:34:45,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:34:45,825 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:34:45,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:34:45,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:34:45,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:34:45,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:34:45,829 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:34:45,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:34:45,830 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:34:45,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:34:45,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:34:45,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:34:45,833 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 00:34:45,836 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 00:34:45,836 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 00:34:45,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:34:45,837 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:34:45,838 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 00:34:45,838 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 00:34:45,839 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:34:45,839 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:34:45,839 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:34:45,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:34:45,840 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:34:45,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:34:45,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:34:45,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:34:45,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:34:45,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:34:45,842 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 00:34:45,842 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 00:34:45,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:34:45,843 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:34:45,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:34:45,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:34:45,843 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 00:34:45,843 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_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2023-11-29 00:34:46,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:34:46,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:34:46,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:34:46,269 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:34:46,270 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:34:46,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-29 00:34:49,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:34:49,488 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:34:49,488 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-29 00:34:49,512 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/data/51bc1ced6/2d11c686c292444bae2366dcaae81443/FLAG4c75f788f [2023-11-29 00:34:49,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/data/51bc1ced6/2d11c686c292444bae2366dcaae81443 [2023-11-29 00:34:49,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:34:49,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:34:49,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:34:49,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:34:49,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:34:49,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:34:49" (1/1) ... [2023-11-29 00:34:49,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11fa3828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:49, skipping insertion in model container [2023-11-29 00:34:49,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:34:49" (1/1) ... [2023-11-29 00:34:49,598 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:34:50,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:34:50,320 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 00:34:50,340 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:34:50,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:34:50,413 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:34:50,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:34:50,561 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:34:50,568 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:34:50,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50 WrapperNode [2023-11-29 00:34:50,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:34:50,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:34:50,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:34:50,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:34:50,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,662 INFO L138 Inliner]: procedures = 432, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 485 [2023-11-29 00:34:50,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:34:50,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:34:50,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:34:50,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:34:50,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,684 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,712 INFO L175 MemorySlicer]: Split 78 memory accesses to 6 slices as follows [2, 2, 6, 5, 5, 58]. 74 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 26 writes are split as follows [0, 1, 2, 3, 3, 17]. [2023-11-29 00:34:50,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:34:50,771 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:34:50,771 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:34:50,771 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:34:50,772 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (1/1) ... [2023-11-29 00:34:50,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:34:50,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:34:50,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:34:50,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:34:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2023-11-29 00:34:50,838 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2023-11-29 00:34:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:34:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 00:34:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 00:34:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 00:34:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 00:34:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 00:34:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-29 00:34:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 00:34:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:34:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-29 00:34:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:34:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:34:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:34:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 00:34:50,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 00:34:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 00:34:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 00:34:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:34:50,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:34:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 00:34:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 00:34:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 00:34:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 00:34:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2023-11-29 00:34:50,842 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2023-11-29 00:34:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 00:34:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 00:34:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 00:34:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 00:34:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-29 00:34:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-29 00:34:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 00:34:50,844 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 00:34:51,054 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:34:51,056 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:34:53,047 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:34:53,328 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:34:53,328 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-29 00:34:53,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:34:53 BoogieIcfgContainer [2023-11-29 00:34:53,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:34:53,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:34:53,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:34:53,335 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:34:53,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:34:49" (1/3) ... [2023-11-29 00:34:53,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7e03ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:34:53, skipping insertion in model container [2023-11-29 00:34:53,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:34:50" (2/3) ... [2023-11-29 00:34:53,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7e03ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:34:53, skipping insertion in model container [2023-11-29 00:34:53,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:34:53" (3/3) ... [2023-11-29 00:34:53,338 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2023-11-29 00:34:53,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:34:53,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 164 error locations. [2023-11-29 00:34:53,358 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 00:34:53,573 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-29 00:34:53,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 338 places, 374 transitions, 768 flow [2023-11-29 00:34:53,914 INFO L124 PetriNetUnfolderBase]: 90/859 cut-off events. [2023-11-29 00:34:53,914 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-29 00:34:53,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 859 events. 90/859 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6244 event pairs, 0 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 449. Up to 16 conditions per place. [2023-11-29 00:34:53,934 INFO L82 GeneralOperation]: Start removeDead. Operand has 338 places, 374 transitions, 768 flow [2023-11-29 00:34:53,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 338 places, 374 transitions, 768 flow [2023-11-29 00:34:53,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:34:53,984 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@566b118, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:34:53,984 INFO L358 AbstractCegarLoop]: Starting to check reachability of 247 error locations. [2023-11-29 00:34:53,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:34:53,987 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-29 00:34:53,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:34:53,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:34:53,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-29 00:34:53,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:34:53,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:53,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1424561, now seen corresponding path program 1 times [2023-11-29 00:34:54,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:34:54,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454691000] [2023-11-29 00:34:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:54,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:34:54,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:34:54,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:34:54,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 00:34:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:34:54,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:34:54,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:34:54,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 00:34:54,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:34:54,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-29 00:34:54,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:34:54,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-29 00:34:54,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:34:54,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-29 00:34:54,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:34:54,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-29 00:34:54,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:34:54,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-29 00:34:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:34:54,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:34:54,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:34:54,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454691000] [2023-11-29 00:34:54,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454691000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:34:54,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:34:54,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 00:34:54,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572786559] [2023-11-29 00:34:54,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:34:54,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:34:54,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:34:54,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:34:54,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:34:55,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 374 [2023-11-29 00:34:55,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 374 transitions, 768 flow. Second operand has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:34:55,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:34:55,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 374 [2023-11-29 00:34:55,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:35:07,848 INFO L124 PetriNetUnfolderBase]: 56669/126981 cut-off events. [2023-11-29 00:35:07,848 INFO L125 PetriNetUnfolderBase]: For 314/318 co-relation queries the response was YES. [2023-11-29 00:35:08,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200719 conditions, 126981 events. 56669/126981 cut-off events. For 314/318 co-relation queries the response was YES. Maximal size of possible extension queue 3175. Compared 1565974 event pairs, 35591 based on Foata normal form. 5538/87290 useless extension candidates. Maximal degree in co-relation 193859. Up to 73561 conditions per place. [2023-11-29 00:35:08,737 INFO L140 encePairwiseOnDemand]: 354/374 looper letters, 122 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2023-11-29 00:35:08,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 355 transitions, 978 flow [2023-11-29 00:35:08,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:35:08,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:35:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 835 transitions. [2023-11-29 00:35:08,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7442067736185384 [2023-11-29 00:35:08,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 835 transitions. [2023-11-29 00:35:08,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 835 transitions. [2023-11-29 00:35:08,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:35:08,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 835 transitions. [2023-11-29 00:35:08,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:08,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:08,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:08,779 INFO L175 Difference]: Start difference. First operand has 338 places, 374 transitions, 768 flow. Second operand 3 states and 835 transitions. [2023-11-29 00:35:08,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 355 transitions, 978 flow [2023-11-29 00:35:08,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 355 transitions, 978 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:35:08,794 INFO L231 Difference]: Finished difference. Result has 328 places, 355 transitions, 734 flow [2023-11-29 00:35:08,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=328, PETRI_TRANSITIONS=355} [2023-11-29 00:35:08,800 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -10 predicate places. [2023-11-29 00:35:08,800 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 355 transitions, 734 flow [2023-11-29 00:35:08,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:08,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:35:08,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-29 00:35:08,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:35:09,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:09,004 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:35:09,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:09,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1424562, now seen corresponding path program 1 times [2023-11-29 00:35:09,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:35:09,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374948953] [2023-11-29 00:35:09,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:09,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:09,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:35:09,007 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:35:09,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 00:35:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:09,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:35:09,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:09,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-29 00:35:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:35:09,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-29 00:35:09,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:35:09,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-29 00:35:09,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:35:09,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-29 00:35:09,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:35:09,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-29 00:35:09,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:35:09,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-29 00:35:09,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:09,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:35:09,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:35:09,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374948953] [2023-11-29 00:35:09,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374948953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:09,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:35:09,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 00:35:09,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943357421] [2023-11-29 00:35:09,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:35:09,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:35:09,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:35:09,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:35:09,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:35:09,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 374 [2023-11-29 00:35:09,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 355 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:09,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:35:09,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 374 [2023-11-29 00:35:09,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:35:22,214 INFO L124 PetriNetUnfolderBase]: 56669/126970 cut-off events. [2023-11-29 00:35:22,214 INFO L125 PetriNetUnfolderBase]: For 310/314 co-relation queries the response was YES. [2023-11-29 00:35:22,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200703 conditions, 126970 events. 56669/126970 cut-off events. For 310/314 co-relation queries the response was YES. Maximal size of possible extension queue 3168. Compared 1565809 event pairs, 35591 based on Foata normal form. 8/81749 useless extension candidates. Maximal degree in co-relation 200660. Up to 73561 conditions per place. [2023-11-29 00:35:23,351 INFO L140 encePairwiseOnDemand]: 361/374 looper letters, 114 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2023-11-29 00:35:23,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 344 transitions, 944 flow [2023-11-29 00:35:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:35:23,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:35:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 844 transitions. [2023-11-29 00:35:23,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7522281639928698 [2023-11-29 00:35:23,355 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 844 transitions. [2023-11-29 00:35:23,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 844 transitions. [2023-11-29 00:35:23,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:35:23,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 844 transitions. [2023-11-29 00:35:23,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:23,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:23,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:23,362 INFO L175 Difference]: Start difference. First operand has 328 places, 355 transitions, 734 flow. Second operand 3 states and 844 transitions. [2023-11-29 00:35:23,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 344 transitions, 944 flow [2023-11-29 00:35:23,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 344 transitions, 940 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:35:23,370 INFO L231 Difference]: Finished difference. Result has 317 places, 344 transitions, 712 flow [2023-11-29 00:35:23,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=317, PETRI_TRANSITIONS=344} [2023-11-29 00:35:23,372 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -21 predicate places. [2023-11-29 00:35:23,372 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 344 transitions, 712 flow [2023-11-29 00:35:23,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:23,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:35:23,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 00:35:23,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-29 00:35:23,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:23,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:35:23,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:23,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1369099069, now seen corresponding path program 1 times [2023-11-29 00:35:23,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:35:23,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202998336] [2023-11-29 00:35:23,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:23,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:23,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:35:23,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:35:23,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 00:35:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:23,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:35:23,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:23,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:35:23,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:35:23,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202998336] [2023-11-29 00:35:23,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202998336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:23,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:35:23,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:35:23,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402020583] [2023-11-29 00:35:23,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:35:23,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:35:23,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:35:23,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:35:23,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:35:23,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 374 [2023-11-29 00:35:23,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 344 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:23,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:35:23,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 374 [2023-11-29 00:35:23,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:35:35,581 INFO L124 PetriNetUnfolderBase]: 56668/126969 cut-off events. [2023-11-29 00:35:35,582 INFO L125 PetriNetUnfolderBase]: For 310/314 co-relation queries the response was YES. [2023-11-29 00:35:35,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200701 conditions, 126969 events. 56668/126969 cut-off events. For 310/314 co-relation queries the response was YES. Maximal size of possible extension queue 3168. Compared 1565671 event pairs, 35591 based on Foata normal form. 1/81741 useless extension candidates. Maximal degree in co-relation 200660. Up to 73561 conditions per place. [2023-11-29 00:35:36,336 INFO L140 encePairwiseOnDemand]: 371/374 looper letters, 113 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2023-11-29 00:35:36,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 343 transitions, 940 flow [2023-11-29 00:35:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:35:36,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:35:36,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 866 transitions. [2023-11-29 00:35:36,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7718360071301248 [2023-11-29 00:35:36,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 866 transitions. [2023-11-29 00:35:36,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 866 transitions. [2023-11-29 00:35:36,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:35:36,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 866 transitions. [2023-11-29 00:35:36,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.6666666666667) internal successors, (866), 3 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:36,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:36,349 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:36,349 INFO L175 Difference]: Start difference. First operand has 317 places, 344 transitions, 712 flow. Second operand 3 states and 866 transitions. [2023-11-29 00:35:36,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 343 transitions, 940 flow [2023-11-29 00:35:36,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 343 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:35:36,359 INFO L231 Difference]: Finished difference. Result has 317 places, 343 transitions, 710 flow [2023-11-29 00:35:36,360 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=317, PETRI_TRANSITIONS=343} [2023-11-29 00:35:36,360 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -21 predicate places. [2023-11-29 00:35:36,360 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 343 transitions, 710 flow [2023-11-29 00:35:36,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:36,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:35:36,361 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:35:36,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 00:35:36,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:36,562 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:35:36,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:36,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1401424056, now seen corresponding path program 1 times [2023-11-29 00:35:36,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:35:36,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988773785] [2023-11-29 00:35:36,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:36,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:36,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:35:36,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:35:36,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 00:35:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:36,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:35:36,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:36,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:35:36,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:35:36,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988773785] [2023-11-29 00:35:36,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988773785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:36,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:35:36,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:35:36,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299257286] [2023-11-29 00:35:36,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:35:36,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:35:36,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:35:36,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:35:36,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:35:36,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 374 [2023-11-29 00:35:36,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 343 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:36,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:35:36,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 374 [2023-11-29 00:35:36,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:35:48,238 INFO L124 PetriNetUnfolderBase]: 56665/126966 cut-off events. [2023-11-29 00:35:48,238 INFO L125 PetriNetUnfolderBase]: For 310/314 co-relation queries the response was YES. [2023-11-29 00:35:48,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200696 conditions, 126966 events. 56665/126966 cut-off events. For 310/314 co-relation queries the response was YES. Maximal size of possible extension queue 3168. Compared 1565889 event pairs, 35591 based on Foata normal form. 0/81739 useless extension candidates. Maximal degree in co-relation 200660. Up to 73561 conditions per place. [2023-11-29 00:35:49,155 INFO L140 encePairwiseOnDemand]: 369/374 looper letters, 111 selfloop transitions, 2 changer transitions 0/340 dead transitions. [2023-11-29 00:35:49,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 340 transitions, 930 flow [2023-11-29 00:35:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:35:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:35:49,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 863 transitions. [2023-11-29 00:35:49,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7691622103386809 [2023-11-29 00:35:49,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 863 transitions. [2023-11-29 00:35:49,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 863 transitions. [2023-11-29 00:35:49,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:35:49,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 863 transitions. [2023-11-29 00:35:49,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:49,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:49,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:49,168 INFO L175 Difference]: Start difference. First operand has 317 places, 343 transitions, 710 flow. Second operand 3 states and 863 transitions. [2023-11-29 00:35:49,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 340 transitions, 930 flow [2023-11-29 00:35:49,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 340 transitions, 926 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:35:49,177 INFO L231 Difference]: Finished difference. Result has 317 places, 340 transitions, 704 flow [2023-11-29 00:35:49,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=317, PETRI_TRANSITIONS=340} [2023-11-29 00:35:49,179 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -21 predicate places. [2023-11-29 00:35:49,179 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 340 transitions, 704 flow [2023-11-29 00:35:49,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:49,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:35:49,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:35:49,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 00:35:49,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:49,381 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:35:49,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash -378162743, now seen corresponding path program 1 times [2023-11-29 00:35:49,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:35:49,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498042294] [2023-11-29 00:35:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:49,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:49,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:35:49,384 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:35:49,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 00:35:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:49,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:35:49,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:49,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 00:35:49,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2023-11-29 00:35:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:49,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:35:49,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:35:49,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498042294] [2023-11-29 00:35:49,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498042294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:49,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:35:49,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:35:49,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114699279] [2023-11-29 00:35:49,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:35:49,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:35:49,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:35:49,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:35:49,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:35:50,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 374 [2023-11-29 00:35:50,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 340 transitions, 704 flow. Second operand has 5 states, 5 states have (on average 248.8) internal successors, (1244), 5 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:50,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:35:50,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 374 [2023-11-29 00:35:50,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:36:03,367 INFO L124 PetriNetUnfolderBase]: 58583/131162 cut-off events. [2023-11-29 00:36:03,367 INFO L125 PetriNetUnfolderBase]: For 310/314 co-relation queries the response was YES. [2023-11-29 00:36:03,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207457 conditions, 131162 events. 58583/131162 cut-off events. For 310/314 co-relation queries the response was YES. Maximal size of possible extension queue 3263. Compared 1622383 event pairs, 36988 based on Foata normal form. 0/84744 useless extension candidates. Maximal degree in co-relation 207422. Up to 76130 conditions per place. [2023-11-29 00:36:04,211 INFO L140 encePairwiseOnDemand]: 368/374 looper letters, 109 selfloop transitions, 5 changer transitions 0/339 dead transitions. [2023-11-29 00:36:04,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 339 transitions, 930 flow [2023-11-29 00:36:04,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:36:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 00:36:04,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1350 transitions. [2023-11-29 00:36:04,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7219251336898396 [2023-11-29 00:36:04,217 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1350 transitions. [2023-11-29 00:36:04,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1350 transitions. [2023-11-29 00:36:04,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:36:04,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1350 transitions. [2023-11-29 00:36:04,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 270.0) internal successors, (1350), 5 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:04,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 374.0) internal successors, (2244), 6 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:04,228 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 374.0) internal successors, (2244), 6 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:04,228 INFO L175 Difference]: Start difference. First operand has 317 places, 340 transitions, 704 flow. Second operand 5 states and 1350 transitions. [2023-11-29 00:36:04,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 339 transitions, 930 flow [2023-11-29 00:36:04,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 339 transitions, 926 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:36:04,238 INFO L231 Difference]: Finished difference. Result has 319 places, 339 transitions, 708 flow [2023-11-29 00:36:04,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=708, PETRI_PLACES=319, PETRI_TRANSITIONS=339} [2023-11-29 00:36:04,239 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -19 predicate places. [2023-11-29 00:36:04,240 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 339 transitions, 708 flow [2023-11-29 00:36:04,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 248.8) internal successors, (1244), 5 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:04,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:36:04,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:36:04,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 00:36:04,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:04,442 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:36:04,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:04,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1859934157, now seen corresponding path program 1 times [2023-11-29 00:36:04,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:36:04,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689975030] [2023-11-29 00:36:04,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:04,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:04,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:36:04,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:36:04,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 00:36:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:36:04,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:36:04,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:04,821 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2023-11-29 00:36:04,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2023-11-29 00:36:04,871 INFO L349 Elim1Store]: treesize reduction 43, result has 6.5 percent of original size [2023-11-29 00:36:04,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 11 [2023-11-29 00:36:04,968 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-29 00:36:04,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2023-11-29 00:36:05,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:36:05,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:36:05,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:36:05,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689975030] [2023-11-29 00:36:05,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689975030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:36:05,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:36:05,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:36:05,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791123642] [2023-11-29 00:36:05,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:36:05,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:36:05,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:36:05,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:36:05,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:36:07,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 374 [2023-11-29 00:36:07,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 339 transitions, 708 flow. Second operand has 5 states, 5 states have (on average 201.4) internal successors, (1007), 5 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:07,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:36:07,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 374 [2023-11-29 00:36:07,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:36:54,091 INFO L124 PetriNetUnfolderBase]: 224981/463322 cut-off events. [2023-11-29 00:36:54,091 INFO L125 PetriNetUnfolderBase]: For 429/429 co-relation queries the response was YES. [2023-11-29 00:36:55,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 772335 conditions, 463322 events. 224981/463322 cut-off events. For 429/429 co-relation queries the response was YES. Maximal size of possible extension queue 7802. Compared 5943540 event pairs, 107380 based on Foata normal form. 0/354205 useless extension candidates. Maximal degree in co-relation 772291. Up to 194719 conditions per place. [2023-11-29 00:36:56,876 INFO L140 encePairwiseOnDemand]: 362/374 looper letters, 287 selfloop transitions, 8 changer transitions 0/471 dead transitions. [2023-11-29 00:36:56,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 471 transitions, 1574 flow [2023-11-29 00:36:56,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:36:56,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:36:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 893 transitions. [2023-11-29 00:36:56,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7959001782531194 [2023-11-29 00:36:56,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 893 transitions. [2023-11-29 00:36:56,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 893 transitions. [2023-11-29 00:36:56,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:36:56,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 893 transitions. [2023-11-29 00:36:56,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:56,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:56,885 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:56,885 INFO L175 Difference]: Start difference. First operand has 319 places, 339 transitions, 708 flow. Second operand 3 states and 893 transitions. [2023-11-29 00:36:56,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 471 transitions, 1574 flow [2023-11-29 00:36:56,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 471 transitions, 1564 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 00:36:56,896 INFO L231 Difference]: Finished difference. Result has 316 places, 343 transitions, 754 flow [2023-11-29 00:36:56,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=316, PETRI_TRANSITIONS=343} [2023-11-29 00:36:56,897 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -22 predicate places. [2023-11-29 00:36:56,897 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 343 transitions, 754 flow [2023-11-29 00:36:56,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.4) internal successors, (1007), 5 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:56,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:36:56,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:36:56,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 00:36:57,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:57,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:36:57,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:57,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1859934156, now seen corresponding path program 1 times [2023-11-29 00:36:57,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:36:57,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233464078] [2023-11-29 00:36:57,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:57,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:57,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:36:57,101 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:36:57,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 00:36:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:36:57,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 00:36:57,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:57,407 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 00:36:57,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 9 [2023-11-29 00:36:57,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-29 00:36:57,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:36:57,471 INFO L349 Elim1Store]: treesize reduction 19, result has 13.6 percent of original size [2023-11-29 00:36:57,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 3 [2023-11-29 00:36:57,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:36:57,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-29 00:36:57,728 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-29 00:36:57,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2023-11-29 00:36:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:36:58,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:36:58,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:36:58,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233464078] [2023-11-29 00:36:58,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233464078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:36:58,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:36:58,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:36:58,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547717906] [2023-11-29 00:36:58,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:36:58,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:36:58,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:36:58,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:36:58,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:37:06,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:37:08,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 374 [2023-11-29 00:37:08,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 343 transitions, 754 flow. Second operand has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:08,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:37:08,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 374 [2023-11-29 00:37:08,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:37:27,735 INFO L124 PetriNetUnfolderBase]: 71931/197009 cut-off events. [2023-11-29 00:37:27,736 INFO L125 PetriNetUnfolderBase]: For 16269/16284 co-relation queries the response was YES. [2023-11-29 00:37:28,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306308 conditions, 197009 events. 71931/197009 cut-off events. For 16269/16284 co-relation queries the response was YES. Maximal size of possible extension queue 4946. Compared 2898486 event pairs, 22604 based on Foata normal form. 79/122630 useless extension candidates. Maximal degree in co-relation 296297. Up to 95570 conditions per place. [2023-11-29 00:37:28,922 INFO L140 encePairwiseOnDemand]: 358/374 looper letters, 176 selfloop transitions, 12 changer transitions 0/407 dead transitions. [2023-11-29 00:37:28,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 407 transitions, 1261 flow [2023-11-29 00:37:28,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:37:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 00:37:28,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1891 transitions. [2023-11-29 00:37:28,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7223071046600459 [2023-11-29 00:37:28,928 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1891 transitions. [2023-11-29 00:37:28,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1891 transitions. [2023-11-29 00:37:28,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:37:28,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1891 transitions. [2023-11-29 00:37:28,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 270.14285714285717) internal successors, (1891), 7 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:28,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 374.0) internal successors, (2992), 8 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:28,941 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 374.0) internal successors, (2992), 8 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:28,941 INFO L175 Difference]: Start difference. First operand has 316 places, 343 transitions, 754 flow. Second operand 7 states and 1891 transitions. [2023-11-29 00:37:28,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 407 transitions, 1261 flow [2023-11-29 00:37:28,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 407 transitions, 1245 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:37:28,990 INFO L231 Difference]: Finished difference. Result has 322 places, 348 transitions, 809 flow [2023-11-29 00:37:28,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=809, PETRI_PLACES=322, PETRI_TRANSITIONS=348} [2023-11-29 00:37:28,991 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -16 predicate places. [2023-11-29 00:37:28,991 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 348 transitions, 809 flow [2023-11-29 00:37:28,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:28,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:37:28,992 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:37:28,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 00:37:29,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:37:29,193 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:37:29,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:37:29,193 INFO L85 PathProgramCache]: Analyzing trace with hash -223790116, now seen corresponding path program 1 times [2023-11-29 00:37:29,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:37:29,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003707760] [2023-11-29 00:37:29,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:37:29,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:37:29,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:37:29,195 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:37:29,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 00:37:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:37:29,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 00:37:29,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:37:29,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-29 00:37:29,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2023-11-29 00:37:29,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:37:29,683 INFO L349 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2023-11-29 00:37:29,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 00:37:29,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:37:29,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-29 00:37:30,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:37:30,100 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-29 00:37:30,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 30 [2023-11-29 00:37:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:37:31,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:37:36,290 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd |c_ULTIMATE.start_bounded_buf_init_~bbuf#1.offset| (_ bv152 32))) (.cse1 (bvadd |c_ULTIMATE.start_main_~#producers~0#1.offset| (_ bv20 32)))) (and (or (forall ((v_ArrVal_646 (_ BitVec 32)) (|v_ULTIMATE.start_bounded_buf_init_#t~malloc31#1.base_33| (_ BitVec 32))) (or (not (bvule .cse0 (select (store |c_#length| |v_ULTIMATE.start_bounded_buf_init_#t~malloc31#1.base_33| v_ArrVal_646) |c_ULTIMATE.start_bounded_buf_init_~bbuf#1.base|))) (= |v_ULTIMATE.start_bounded_buf_init_#t~malloc31#1.base_33| (_ bv0 32)) (not (bvult |v_ULTIMATE.start_bounded_buf_init_#t~malloc31#1.base_33| |c_#StackHeapBarrier|)))) (bvule (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~#producers~0#1.offset|) .cse1)) (forall ((|v_ULTIMATE.start_bounded_buf_init_#t~malloc31#1.base_33| (_ BitVec 32))) (or (= |v_ULTIMATE.start_bounded_buf_init_#t~malloc31#1.base_33| (_ bv0 32)) (not (bvult |v_ULTIMATE.start_bounded_buf_init_#t~malloc31#1.base_33| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_646 (_ BitVec 32))) (let ((.cse2 (store |c_#length| |v_ULTIMATE.start_bounded_buf_init_#t~malloc31#1.base_33| v_ArrVal_646))) (or (not (bvule .cse0 (select .cse2 |c_ULTIMATE.start_bounded_buf_init_~bbuf#1.base|))) (bvule .cse1 (select .cse2 |c_ULTIMATE.start_main_~#producers~0#1.base|))))))))) is different from false [2023-11-29 00:37:36,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:37:36,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:37:36,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003707760] [2023-11-29 00:37:36,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003707760] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:37:36,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:37:36,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2023-11-29 00:37:36,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64576644] [2023-11-29 00:37:36,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:37:36,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:37:36,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:37:36,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:37:36,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=76, Unknown=1, NotChecked=18, Total=132 [2023-11-29 00:37:41,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 374 [2023-11-29 00:37:41,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 348 transitions, 809 flow. Second operand has 12 states, 12 states have (on average 103.16666666666667) internal successors, (1238), 12 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:41,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:37:41,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 374 [2023-11-29 00:37:41,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:37:45,830 INFO L124 PetriNetUnfolderBase]: 307/765 cut-off events. [2023-11-29 00:37:45,830 INFO L125 PetriNetUnfolderBase]: For 398/398 co-relation queries the response was YES. [2023-11-29 00:37:45,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 765 events. 307/765 cut-off events. For 398/398 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3853 event pairs, 164 based on Foata normal form. 208/817 useless extension candidates. Maximal degree in co-relation 1501. Up to 549 conditions per place. [2023-11-29 00:37:45,833 INFO L140 encePairwiseOnDemand]: 367/374 looper letters, 136 selfloop transitions, 3 changer transitions 0/167 dead transitions. [2023-11-29 00:37:45,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 167 transitions, 631 flow [2023-11-29 00:37:45,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:37:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 00:37:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 638 transitions. [2023-11-29 00:37:45,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3411764705882353 [2023-11-29 00:37:45,837 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 638 transitions. [2023-11-29 00:37:45,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 638 transitions. [2023-11-29 00:37:45,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:37:45,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 638 transitions. [2023-11-29 00:37:45,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:45,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 374.0) internal successors, (2244), 6 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:45,843 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 374.0) internal successors, (2244), 6 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:45,843 INFO L175 Difference]: Start difference. First operand has 322 places, 348 transitions, 809 flow. Second operand 5 states and 638 transitions. [2023-11-29 00:37:45,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 167 transitions, 631 flow [2023-11-29 00:37:45,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 167 transitions, 618 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-29 00:37:45,847 INFO L231 Difference]: Finished difference. Result has 109 places, 107 transitions, 226 flow [2023-11-29 00:37:45,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=109, PETRI_TRANSITIONS=107} [2023-11-29 00:37:45,848 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -229 predicate places. [2023-11-29 00:37:45,848 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 107 transitions, 226 flow [2023-11-29 00:37:45,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 103.16666666666667) internal successors, (1238), 12 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:45,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:37:45,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:37:45,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 00:37:46,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:37:46,050 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting producer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:37:46,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:37:46,050 INFO L85 PathProgramCache]: Analyzing trace with hash -223604097, now seen corresponding path program 1 times [2023-11-29 00:37:46,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:37:46,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113676805] [2023-11-29 00:37:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:37:46,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:37:46,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:37:46,052 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:37:46,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 00:37:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:37:46,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:37:46,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:37:46,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:37:46,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:37:46,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:37:46,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113676805] [2023-11-29 00:37:46,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113676805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:37:46,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:37:46,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:37:46,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793809561] [2023-11-29 00:37:46,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:37:46,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:37:46,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:37:46,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:37:46,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:37:47,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 374 [2023-11-29 00:37:47,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:47,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:37:47,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 374 [2023-11-29 00:37:47,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:37:48,008 INFO L124 PetriNetUnfolderBase]: 124/518 cut-off events. [2023-11-29 00:37:48,008 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-29 00:37:48,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 807 conditions, 518 events. 124/518 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2956 event pairs, 0 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 802. Up to 219 conditions per place. [2023-11-29 00:37:48,010 INFO L140 encePairwiseOnDemand]: 370/374 looper letters, 44 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2023-11-29 00:37:48,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 113 transitions, 335 flow [2023-11-29 00:37:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:37:48,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 00:37:48,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1258 transitions. [2023-11-29 00:37:48,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727 [2023-11-29 00:37:48,014 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1258 transitions. [2023-11-29 00:37:48,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1258 transitions. [2023-11-29 00:37:48,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:37:48,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1258 transitions. [2023-11-29 00:37:48,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 251.6) internal successors, (1258), 5 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:48,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 374.0) internal successors, (2244), 6 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:48,020 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 374.0) internal successors, (2244), 6 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:48,021 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 226 flow. Second operand 5 states and 1258 transitions. [2023-11-29 00:37:48,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 113 transitions, 335 flow [2023-11-29 00:37:48,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 113 transitions, 329 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 00:37:48,023 INFO L231 Difference]: Finished difference. Result has 109 places, 106 transitions, 225 flow [2023-11-29 00:37:48,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=109, PETRI_TRANSITIONS=106} [2023-11-29 00:37:48,024 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -229 predicate places. [2023-11-29 00:37:48,024 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 106 transitions, 225 flow [2023-11-29 00:37:48,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:48,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:37:48,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:37:48,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 00:37:48,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:37:48,225 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting producer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:37:48,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:37:48,225 INFO L85 PathProgramCache]: Analyzing trace with hash -223604096, now seen corresponding path program 1 times [2023-11-29 00:37:48,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:37:48,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624076688] [2023-11-29 00:37:48,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:37:48,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:37:48,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:37:48,227 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:37:48,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 00:37:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:37:48,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:37:48,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:37:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:37:48,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:37:48,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:37:48,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624076688] [2023-11-29 00:37:48,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624076688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:37:48,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:37:48,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:37:48,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865068427] [2023-11-29 00:37:48,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:37:48,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:37:48,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:37:48,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:37:48,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:37:52,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 374 [2023-11-29 00:37:52,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 106 transitions, 225 flow. Second operand has 8 states, 8 states have (on average 245.75) internal successors, (1966), 8 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:52,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:37:52,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 374 [2023-11-29 00:37:52,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:37:53,070 INFO L124 PetriNetUnfolderBase]: 95/412 cut-off events. [2023-11-29 00:37:53,070 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 00:37:53,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 412 events. 95/412 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2181 event pairs, 0 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 650. Up to 144 conditions per place. [2023-11-29 00:37:53,072 INFO L140 encePairwiseOnDemand]: 366/374 looper letters, 62 selfloop transitions, 9 changer transitions 0/137 dead transitions. [2023-11-29 00:37:53,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 137 transitions, 433 flow [2023-11-29 00:37:53,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:37:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 00:37:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2513 transitions. [2023-11-29 00:37:53,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6719251336898395 [2023-11-29 00:37:53,078 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2513 transitions. [2023-11-29 00:37:53,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2513 transitions. [2023-11-29 00:37:53,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:37:53,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2513 transitions. [2023-11-29 00:37:53,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 251.3) internal successors, (2513), 10 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:53,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 374.0) internal successors, (4114), 11 states have internal predecessors, (4114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:53,090 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 374.0) internal successors, (4114), 11 states have internal predecessors, (4114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:53,091 INFO L175 Difference]: Start difference. First operand has 109 places, 106 transitions, 225 flow. Second operand 10 states and 2513 transitions. [2023-11-29 00:37:53,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 137 transitions, 433 flow [2023-11-29 00:37:53,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 137 transitions, 428 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 00:37:53,093 INFO L231 Difference]: Finished difference. Result has 116 places, 109 transitions, 256 flow [2023-11-29 00:37:53,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=256, PETRI_PLACES=116, PETRI_TRANSITIONS=109} [2023-11-29 00:37:53,094 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -222 predicate places. [2023-11-29 00:37:53,094 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 109 transitions, 256 flow [2023-11-29 00:37:53,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 245.75) internal successors, (1966), 8 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:37:53,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:37:53,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:37:53,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 00:37:53,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:37:53,296 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting producer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:37:53,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:37:53,296 INFO L85 PathProgramCache]: Analyzing trace with hash -135117052, now seen corresponding path program 1 times [2023-11-29 00:37:53,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:37:53,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363255352] [2023-11-29 00:37:53,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:37:53,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:37:53,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:37:53,297 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:37:53,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 00:37:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:37:53,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 00:37:53,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:37:53,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-29 00:37:53,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 20 [2023-11-29 00:37:53,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 00:37:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:37:53,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:37:53,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:37:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363255352] [2023-11-29 00:37:53,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363255352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:37:53,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:37:53,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:37:53,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035817353] [2023-11-29 00:37:53,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:37:53,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:37:53,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:37:53,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:37:53,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:38:01,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 374 [2023-11-29 00:38:01,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 109 transitions, 256 flow. Second operand has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:01,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:38:01,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 374 [2023-11-29 00:38:01,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:38:04,361 INFO L124 PetriNetUnfolderBase]: 192/523 cut-off events. [2023-11-29 00:38:04,361 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2023-11-29 00:38:04,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 523 events. 192/523 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2417 event pairs, 6 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 1097. Up to 130 conditions per place. [2023-11-29 00:38:04,363 INFO L140 encePairwiseOnDemand]: 346/374 looper letters, 173 selfloop transitions, 24 changer transitions 0/227 dead transitions. [2023-11-29 00:38:04,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 227 transitions, 902 flow [2023-11-29 00:38:04,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:38:04,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 00:38:04,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3033 transitions. [2023-11-29 00:38:04,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6238173591114767 [2023-11-29 00:38:04,371 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3033 transitions. [2023-11-29 00:38:04,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3033 transitions. [2023-11-29 00:38:04,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:38:04,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3033 transitions. [2023-11-29 00:38:04,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:04,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 374.0) internal successors, (5236), 14 states have internal predecessors, (5236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:04,384 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 374.0) internal successors, (5236), 14 states have internal predecessors, (5236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:04,384 INFO L175 Difference]: Start difference. First operand has 116 places, 109 transitions, 256 flow. Second operand 13 states and 3033 transitions. [2023-11-29 00:38:04,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 227 transitions, 902 flow [2023-11-29 00:38:04,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 227 transitions, 888 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 00:38:04,388 INFO L231 Difference]: Finished difference. Result has 117 places, 110 transitions, 382 flow [2023-11-29 00:38:04,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=382, PETRI_PLACES=117, PETRI_TRANSITIONS=110} [2023-11-29 00:38:04,389 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -221 predicate places. [2023-11-29 00:38:04,389 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 110 transitions, 382 flow [2023-11-29 00:38:04,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:04,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:38:04,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:38:04,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-29 00:38:04,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:38:04,590 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting producer_routineErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:38:04,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:38:04,590 INFO L85 PathProgramCache]: Analyzing trace with hash -135117051, now seen corresponding path program 1 times [2023-11-29 00:38:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:38:04,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137803511] [2023-11-29 00:38:04,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:38:04,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:38:04,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:38:04,592 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:38:04,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 00:38:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:38:04,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 00:38:04,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:38:05,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-29 00:38:05,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 00:38:05,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 18 [2023-11-29 00:38:05,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 16 [2023-11-29 00:38:05,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-29 00:38:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:38:05,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:38:05,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:38:05,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137803511] [2023-11-29 00:38:05,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137803511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:38:05,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:38:05,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:38:05,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335296691] [2023-11-29 00:38:05,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:38:05,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:38:05,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:38:05,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:38:05,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:38:13,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 374 [2023-11-29 00:38:13,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 110 transitions, 382 flow. Second operand has 8 states, 8 states have (on average 231.25) internal successors, (1850), 8 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:13,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:38:13,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 374 [2023-11-29 00:38:13,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:38:17,610 INFO L124 PetriNetUnfolderBase]: 239/629 cut-off events. [2023-11-29 00:38:17,610 INFO L125 PetriNetUnfolderBase]: For 601/606 co-relation queries the response was YES. [2023-11-29 00:38:17,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 629 events. 239/629 cut-off events. For 601/606 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3180 event pairs, 35 based on Foata normal form. 58/601 useless extension candidates. Maximal degree in co-relation 1572. Up to 202 conditions per place. [2023-11-29 00:38:17,613 INFO L140 encePairwiseOnDemand]: 348/374 looper letters, 193 selfloop transitions, 21 changer transitions 0/247 dead transitions. [2023-11-29 00:38:17,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 247 transitions, 1118 flow [2023-11-29 00:38:17,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:38:17,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 00:38:17,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3255 transitions. [2023-11-29 00:38:17,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6694775812422872 [2023-11-29 00:38:17,621 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3255 transitions. [2023-11-29 00:38:17,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3255 transitions. [2023-11-29 00:38:17,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:38:17,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3255 transitions. [2023-11-29 00:38:17,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 250.3846153846154) internal successors, (3255), 13 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:17,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 374.0) internal successors, (5236), 14 states have internal predecessors, (5236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:17,633 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 374.0) internal successors, (5236), 14 states have internal predecessors, (5236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:17,633 INFO L175 Difference]: Start difference. First operand has 117 places, 110 transitions, 382 flow. Second operand 13 states and 3255 transitions. [2023-11-29 00:38:17,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 247 transitions, 1118 flow [2023-11-29 00:38:17,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 247 transitions, 1097 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-29 00:38:17,639 INFO L231 Difference]: Finished difference. Result has 128 places, 113 transitions, 575 flow [2023-11-29 00:38:17,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=575, PETRI_PLACES=128, PETRI_TRANSITIONS=113} [2023-11-29 00:38:17,640 INFO L281 CegarLoopForPetriNet]: 338 programPoint places, -210 predicate places. [2023-11-29 00:38:17,640 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 113 transitions, 575 flow [2023-11-29 00:38:17,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 231.25) internal successors, (1850), 8 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:17,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:38:17,640 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:38:17,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-29 00:38:17,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:38:17,841 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 244 more)] === [2023-11-29 00:38:17,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:38:17,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1140632487, now seen corresponding path program 1 times [2023-11-29 00:38:17,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:38:17,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700371241] [2023-11-29 00:38:17,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:38:17,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:38:17,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:38:17,843 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:38:17,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 00:38:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:38:18,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:38:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:38:18,970 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 00:38:18,970 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:38:18,971 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (246 of 247 remaining) [2023-11-29 00:38:18,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (245 of 247 remaining) [2023-11-29 00:38:18,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (244 of 247 remaining) [2023-11-29 00:38:18,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (243 of 247 remaining) [2023-11-29 00:38:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (242 of 247 remaining) [2023-11-29 00:38:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (241 of 247 remaining) [2023-11-29 00:38:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (240 of 247 remaining) [2023-11-29 00:38:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (239 of 247 remaining) [2023-11-29 00:38:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (238 of 247 remaining) [2023-11-29 00:38:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (237 of 247 remaining) [2023-11-29 00:38:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (236 of 247 remaining) [2023-11-29 00:38:18,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (235 of 247 remaining) [2023-11-29 00:38:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (234 of 247 remaining) [2023-11-29 00:38:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (233 of 247 remaining) [2023-11-29 00:38:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (232 of 247 remaining) [2023-11-29 00:38:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (231 of 247 remaining) [2023-11-29 00:38:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (230 of 247 remaining) [2023-11-29 00:38:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (229 of 247 remaining) [2023-11-29 00:38:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (228 of 247 remaining) [2023-11-29 00:38:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (227 of 247 remaining) [2023-11-29 00:38:18,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (226 of 247 remaining) [2023-11-29 00:38:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (225 of 247 remaining) [2023-11-29 00:38:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (224 of 247 remaining) [2023-11-29 00:38:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (223 of 247 remaining) [2023-11-29 00:38:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (222 of 247 remaining) [2023-11-29 00:38:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (221 of 247 remaining) [2023-11-29 00:38:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (220 of 247 remaining) [2023-11-29 00:38:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (219 of 247 remaining) [2023-11-29 00:38:18,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (218 of 247 remaining) [2023-11-29 00:38:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (217 of 247 remaining) [2023-11-29 00:38:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (216 of 247 remaining) [2023-11-29 00:38:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr24ASSERT_VIOLATIONMEMORY_LEAK (215 of 247 remaining) [2023-11-29 00:38:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (214 of 247 remaining) [2023-11-29 00:38:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (213 of 247 remaining) [2023-11-29 00:38:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (212 of 247 remaining) [2023-11-29 00:38:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (211 of 247 remaining) [2023-11-29 00:38:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (210 of 247 remaining) [2023-11-29 00:38:18,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (209 of 247 remaining) [2023-11-29 00:38:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (208 of 247 remaining) [2023-11-29 00:38:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (207 of 247 remaining) [2023-11-29 00:38:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (206 of 247 remaining) [2023-11-29 00:38:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (205 of 247 remaining) [2023-11-29 00:38:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (204 of 247 remaining) [2023-11-29 00:38:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (203 of 247 remaining) [2023-11-29 00:38:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (202 of 247 remaining) [2023-11-29 00:38:18,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (201 of 247 remaining) [2023-11-29 00:38:18,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (200 of 247 remaining) [2023-11-29 00:38:18,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (199 of 247 remaining) [2023-11-29 00:38:18,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (198 of 247 remaining) [2023-11-29 00:38:18,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (197 of 247 remaining) [2023-11-29 00:38:18,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (196 of 247 remaining) [2023-11-29 00:38:18,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (195 of 247 remaining) [2023-11-29 00:38:18,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (194 of 247 remaining) [2023-11-29 00:38:18,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (193 of 247 remaining) [2023-11-29 00:38:18,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (192 of 247 remaining) [2023-11-29 00:38:18,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (191 of 247 remaining) [2023-11-29 00:38:18,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (190 of 247 remaining) [2023-11-29 00:38:18,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (189 of 247 remaining) [2023-11-29 00:38:18,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (188 of 247 remaining) [2023-11-29 00:38:18,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (187 of 247 remaining) [2023-11-29 00:38:18,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (186 of 247 remaining) [2023-11-29 00:38:18,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (185 of 247 remaining) [2023-11-29 00:38:18,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (184 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (183 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (182 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (181 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (180 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (179 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (178 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (177 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (176 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (175 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (174 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (173 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_LEAK (172 of 247 remaining) [2023-11-29 00:38:18,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (171 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (170 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (169 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (168 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (167 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (166 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (165 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (164 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (163 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (162 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (161 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (160 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (159 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (158 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (157 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (156 of 247 remaining) [2023-11-29 00:38:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (155 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE (154 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (153 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (152 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (151 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (150 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (149 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (148 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE (147 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE (146 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE (145 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE (144 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATIONMEMORY_DEREFERENCE (143 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68REQUIRES_VIOLATIONMEMORY_DEREFERENCE (142 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69REQUIRES_VIOLATIONMEMORY_DEREFERENCE (141 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (140 of 247 remaining) [2023-11-29 00:38:18,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (139 of 247 remaining) [2023-11-29 00:38:18,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE (138 of 247 remaining) [2023-11-29 00:38:18,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (137 of 247 remaining) [2023-11-29 00:38:18,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (136 of 247 remaining) [2023-11-29 00:38:18,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (135 of 247 remaining) [2023-11-29 00:38:18,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (134 of 247 remaining) [2023-11-29 00:38:18,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE (133 of 247 remaining) [2023-11-29 00:38:18,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE (132 of 247 remaining) [2023-11-29 00:38:18,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE (131 of 247 remaining) [2023-11-29 00:38:18,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE (130 of 247 remaining) [2023-11-29 00:38:18,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE (129 of 247 remaining) [2023-11-29 00:38:18,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE (128 of 247 remaining) [2023-11-29 00:38:18,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72REQUIRES_VIOLATIONMEMORY_DEREFERENCE (127 of 247 remaining) [2023-11-29 00:38:18,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE (126 of 247 remaining) [2023-11-29 00:38:18,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE (125 of 247 remaining) [2023-11-29 00:38:18,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE (124 of 247 remaining) [2023-11-29 00:38:18,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE (123 of 247 remaining) [2023-11-29 00:38:18,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE (122 of 247 remaining) [2023-11-29 00:38:18,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE (121 of 247 remaining) [2023-11-29 00:38:18,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE (120 of 247 remaining) [2023-11-29 00:38:18,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (119 of 247 remaining) [2023-11-29 00:38:18,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (118 of 247 remaining) [2023-11-29 00:38:18,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (117 of 247 remaining) [2023-11-29 00:38:18,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (116 of 247 remaining) [2023-11-29 00:38:18,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (115 of 247 remaining) [2023-11-29 00:38:18,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 247 remaining) [2023-11-29 00:38:18,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 247 remaining) [2023-11-29 00:38:18,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 247 remaining) [2023-11-29 00:38:18,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 247 remaining) [2023-11-29 00:38:18,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (110 of 247 remaining) [2023-11-29 00:38:18,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 247 remaining) [2023-11-29 00:38:18,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (108 of 247 remaining) [2023-11-29 00:38:18,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (107 of 247 remaining) [2023-11-29 00:38:18,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 247 remaining) [2023-11-29 00:38:18,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 247 remaining) [2023-11-29 00:38:18,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (104 of 247 remaining) [2023-11-29 00:38:18,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 247 remaining) [2023-11-29 00:38:18,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 247 remaining) [2023-11-29 00:38:18,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 247 remaining) [2023-11-29 00:38:18,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 247 remaining) [2023-11-29 00:38:18,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 247 remaining) [2023-11-29 00:38:18,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 247 remaining) [2023-11-29 00:38:18,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 247 remaining) [2023-11-29 00:38:18,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 247 remaining) [2023-11-29 00:38:18,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (95 of 247 remaining) [2023-11-29 00:38:18,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 247 remaining) [2023-11-29 00:38:18,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 247 remaining) [2023-11-29 00:38:18,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 247 remaining) [2023-11-29 00:38:18,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 247 remaining) [2023-11-29 00:38:18,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (90 of 247 remaining) [2023-11-29 00:38:18,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 247 remaining) [2023-11-29 00:38:18,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 247 remaining) [2023-11-29 00:38:18,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 247 remaining) [2023-11-29 00:38:18,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 247 remaining) [2023-11-29 00:38:18,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 247 remaining) [2023-11-29 00:38:18,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 247 remaining) [2023-11-29 00:38:18,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 247 remaining) [2023-11-29 00:38:18,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 247 remaining) [2023-11-29 00:38:18,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 247 remaining) [2023-11-29 00:38:18,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 247 remaining) [2023-11-29 00:38:18,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 247 remaining) [2023-11-29 00:38:18,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 247 remaining) [2023-11-29 00:38:18,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 247 remaining) [2023-11-29 00:38:18,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 247 remaining) [2023-11-29 00:38:18,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 247 remaining) [2023-11-29 00:38:18,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 247 remaining) [2023-11-29 00:38:18,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 247 remaining) [2023-11-29 00:38:18,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 247 remaining) [2023-11-29 00:38:18,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 247 remaining) [2023-11-29 00:38:18,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 247 remaining) [2023-11-29 00:38:18,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 247 remaining) [2023-11-29 00:38:18,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 247 remaining) [2023-11-29 00:38:18,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 247 remaining) [2023-11-29 00:38:18,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 247 remaining) [2023-11-29 00:38:18,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 247 remaining) [2023-11-29 00:38:18,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 247 remaining) [2023-11-29 00:38:18,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 247 remaining) [2023-11-29 00:38:18,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 247 remaining) [2023-11-29 00:38:18,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 247 remaining) [2023-11-29 00:38:18,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 247 remaining) [2023-11-29 00:38:18,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 247 remaining) [2023-11-29 00:38:18,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 247 remaining) [2023-11-29 00:38:18,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 247 remaining) [2023-11-29 00:38:18,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 247 remaining) [2023-11-29 00:38:18,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 247 remaining) [2023-11-29 00:38:18,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 247 remaining) [2023-11-29 00:38:18,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 247 remaining) [2023-11-29 00:38:18,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 247 remaining) [2023-11-29 00:38:18,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 247 remaining) [2023-11-29 00:38:18,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr24ASSERT_VIOLATIONMEMORY_LEAK (50 of 247 remaining) [2023-11-29 00:38:18,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 247 remaining) [2023-11-29 00:38:18,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 247 remaining) [2023-11-29 00:38:18,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 247 remaining) [2023-11-29 00:38:18,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 247 remaining) [2023-11-29 00:38:18,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 247 remaining) [2023-11-29 00:38:18,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 247 remaining) [2023-11-29 00:38:18,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 247 remaining) [2023-11-29 00:38:18,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 247 remaining) [2023-11-29 00:38:18,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 247 remaining) [2023-11-29 00:38:18,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 247 remaining) [2023-11-29 00:38:18,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 247 remaining) [2023-11-29 00:38:18,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 247 remaining) [2023-11-29 00:38:18,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 247 remaining) [2023-11-29 00:38:18,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 247 remaining) [2023-11-29 00:38:18,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 247 remaining) [2023-11-29 00:38:18,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 247 remaining) [2023-11-29 00:38:18,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 247 remaining) [2023-11-29 00:38:18,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 247 remaining) [2023-11-29 00:38:19,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 00:38:19,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:38:19,198 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:38:19,200 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 00:38:19,200 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 00:38:19,365 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-29 00:38:19,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 509 places, 566 transitions, 1176 flow [2023-11-29 00:38:19,994 INFO L124 PetriNetUnfolderBase]: 328/2819 cut-off events. [2023-11-29 00:38:19,994 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-29 00:38:20,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2908 conditions, 2819 events. 328/2819 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 26231 event pairs, 1 based on Foata normal form. 0/1292 useless extension candidates. Maximal degree in co-relation 1586. Up to 64 conditions per place. [2023-11-29 00:38:20,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 509 places, 566 transitions, 1176 flow [2023-11-29 00:38:20,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 509 places, 566 transitions, 1176 flow [2023-11-29 00:38:20,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:38:20,098 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@566b118, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:38:20,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 328 error locations. [2023-11-29 00:38:20,099 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:38:20,099 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-29 00:38:20,099 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:38:20,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:38:20,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-29 00:38:20,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [consumer_routineErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, consumer_routineErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 325 more)] === [2023-11-29 00:38:20,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:38:20,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1984613, now seen corresponding path program 1 times [2023-11-29 00:38:20,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:38:20,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110992337] [2023-11-29 00:38:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:38:20,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:38:20,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:38:20,102 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:38:20,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e449e67d-bf00-40a4-83ae-15bb63673820/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 00:38:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:38:20,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:38:20,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:38:20,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2023-11-29 00:38:20,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:38:20,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-29 00:38:20,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:38:20,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-29 00:38:20,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:38:20,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-29 00:38:20,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:38:20,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-29 00:38:20,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 00:38:20,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-29 00:38:20,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:38:20,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:38:20,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:38:20,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110992337] [2023-11-29 00:38:20,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110992337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:38:20,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:38:20,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 00:38:20,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92050208] [2023-11-29 00:38:20,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:38:20,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:38:20,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:38:20,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:38:20,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:38:21,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 566 [2023-11-29 00:38:21,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 566 transitions, 1176 flow. Second operand has 3 states, 3 states have (on average 351.6666666666667) internal successors, (1055), 3 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:38:21,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:38:21,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 566 [2023-11-29 00:38:21,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand