./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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_16ff94b2-9dfd-4dbe-838f-9c361529517e/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 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:35:24,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:35:24,273 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-28 20:35:24,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:35:24,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:35:24,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:35:24,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:35:24,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:35:24,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:35:24,306 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:35:24,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:35:24,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:35:24,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:35:24,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:35:24,309 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:35:24,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:35:24,311 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:35:24,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:35:24,312 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:35:24,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:35:24,313 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 20:35:24,317 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 20:35:24,317 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-28 20:35:24,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:35:24,318 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:35:24,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:35:24,319 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:35:24,319 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:35:24,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:35:24,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:35:24,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:35:24,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:35:24,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:35:24,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:35:24,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:35:24,322 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:35:24,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:35:24,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:35:24,323 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:35:24,323 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:35:24,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:35:24,324 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_16ff94b2-9dfd-4dbe-838f-9c361529517e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c [2023-11-28 20:35:24,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:35:24,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:35:24,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:35:24,606 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:35:24,607 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:35:24,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-11-28 20:35:27,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:35:27,700 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:35:27,701 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-11-28 20:35:27,713 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/data/1fd6c7ff5/9f21539435bf43a6bd63bd54a995d13b/FLAG9a79324a4 [2023-11-28 20:35:27,730 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/data/1fd6c7ff5/9f21539435bf43a6bd63bd54a995d13b [2023-11-28 20:35:27,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:35:27,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:35:27,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:35:27,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:35:27,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:35:27,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:35:27" (1/1) ... [2023-11-28 20:35:27,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3430dca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:27, skipping insertion in model container [2023-11-28 20:35:27,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:35:27" (1/1) ... [2023-11-28 20:35:27,776 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:35:27,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:35:27,983 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) [2023-11-28 20:35:27,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c55d728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:27, skipping insertion in model container [2023-11-28 20:35:27,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:35:27,984 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-28 20:35:27,986 INFO L158 Benchmark]: Toolchain (without parser) took 249.96ms. Allocated memory is still 144.7MB. Free memory was 104.6MB in the beginning and 94.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 20:35:27,986 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 144.7MB. Free memory was 118.9MB in the beginning and 118.7MB in the end (delta: 182.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:35:27,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.39ms. Allocated memory is still 144.7MB. Free memory was 104.6MB in the beginning and 94.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 20:35:27,989 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 144.7MB. Free memory was 118.9MB in the beginning and 118.7MB in the end (delta: 182.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.39ms. Allocated memory is still 144.7MB. Free memory was 104.6MB in the beginning and 94.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 183]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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_16ff94b2-9dfd-4dbe-838f-9c361529517e/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 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:35:29,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:35:30,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-28 20:35:30,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:35:30,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:35:30,107 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:35:30,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:35:30,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:35:30,109 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:35:30,110 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:35:30,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:35:30,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:35:30,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:35:30,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:35:30,113 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:35:30,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:35:30,115 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:35:30,115 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:35:30,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:35:30,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:35:30,117 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 20:35:30,119 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 20:35:30,119 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-28 20:35:30,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:35:30,120 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:35:30,121 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 20:35:30,121 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 20:35:30,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:35:30,122 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:35:30,122 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:35:30,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:35:30,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:35:30,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:35:30,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:35:30,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:35:30,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:35:30,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:35:30,125 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 20:35:30,126 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 20:35:30,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:35:30,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:35:30,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:35:30,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:35:30,127 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 20:35:30,127 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_16ff94b2-9dfd-4dbe-838f-9c361529517e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c [2023-11-28 20:35:30,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:35:30,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:35:30,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:35:30,482 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:35:30,483 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:35:30,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-11-28 20:35:33,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:35:33,655 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:35:33,655 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-11-28 20:35:33,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/data/a9281b4f2/f4fbeab7e65d4d1ba39d84b90af702f8/FLAGc95d7f6cd [2023-11-28 20:35:33,682 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/data/a9281b4f2/f4fbeab7e65d4d1ba39d84b90af702f8 [2023-11-28 20:35:33,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:35:33,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:35:33,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:35:33,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:35:33,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:35:33,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:35:33" (1/1) ... [2023-11-28 20:35:33,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fc60d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:33, skipping insertion in model container [2023-11-28 20:35:33,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:35:33" (1/1) ... [2023-11-28 20:35:33,730 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:35:33,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:35:33,978 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-28 20:35:33,986 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:35:34,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:35:34,026 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:35:34,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:35:34,082 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:35:34,083 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:35:34,092 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:35:34,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34 WrapperNode [2023-11-28 20:35:34,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:35:34,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:35:34,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:35:34,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:35:34,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,161 INFO L138 Inliner]: procedures = 31, calls = 96, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 295 [2023-11-28 20:35:34,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:35:34,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:35:34,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:35:34,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:35:34,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,214 INFO L175 MemorySlicer]: Split 19 memory accesses to 8 slices as follows [2, 2, 2, 2, 5, 2, 2, 2]. 26 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [1, 0, 1, 1, 1, 1, 1, 1]. [2023-11-28 20:35:34,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:35:34,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:35:34,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:35:34,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:35:34,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (1/1) ... [2023-11-28 20:35:34,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:35:34,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:34,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:34,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:35:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:35:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 20:35:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-28 20:35:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-28 20:35:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-28 20:35:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-28 20:35:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-28 20:35:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-28 20:35:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-28 20:35:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:35:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-28 20:35:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-28 20:35:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-28 20:35:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-28 20:35:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-28 20:35:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-28 20:35:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-28 20:35:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-11-28 20:35:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-28 20:35:34,355 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-28 20:35:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-28 20:35:34,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-28 20:35:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-28 20:35:34,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-28 20:35:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-28 20:35:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-28 20:35:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-28 20:35:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-28 20:35:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-28 20:35:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-28 20:35:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-28 20:35:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-28 20:35:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:35:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:35:34,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:35:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:35:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-28 20:35:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-28 20:35:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-28 20:35:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-28 20:35:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-28 20:35:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-28 20:35:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-28 20:35:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-11-28 20:35:34,362 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 20:35:34,551 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:35:34,554 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:35:35,498 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:35:35,958 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:35:35,958 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-28 20:35:35,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:35:35 BoogieIcfgContainer [2023-11-28 20:35:35,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:35:35,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:35:35,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:35:35,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:35:35,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:35:33" (1/3) ... [2023-11-28 20:35:35,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239b23f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:35:35, skipping insertion in model container [2023-11-28 20:35:35,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:34" (2/3) ... [2023-11-28 20:35:35,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239b23f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:35:35, skipping insertion in model container [2023-11-28 20:35:35,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:35:35" (3/3) ... [2023-11-28 20:35:35,970 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2023-11-28 20:35:35,993 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:35:35,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-28 20:35:35,994 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 20:35:36,161 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-28 20:35:36,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 144 transitions, 354 flow [2023-11-28 20:35:36,270 INFO L124 PetriNetUnfolderBase]: 13/124 cut-off events. [2023-11-28 20:35:36,270 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-28 20:35:36,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 124 events. 13/124 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 398 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 121. Up to 3 conditions per place. [2023-11-28 20:35:36,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 144 transitions, 354 flow [2023-11-28 20:35:36,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 123 transitions, 294 flow [2023-11-28 20:35:36,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:35:36,305 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;@118a11d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:35:36,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2023-11-28 20:35:36,310 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 20:35:36,310 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-11-28 20:35:36,310 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:35:36,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:35:36,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-28 20:35:36,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-11-28 20:35:36,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:36,317 INFO L85 PathProgramCache]: Analyzing trace with hash 997199, now seen corresponding path program 1 times [2023-11-28 20:35:36,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:35:36,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622571475] [2023-11-28 20:35:36,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:36,331 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 [2023-11-28 20:35:36,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:35:36,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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) [2023-11-28 20:35:36,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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 [2023-11-28 20:35:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:36,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:35:36,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:36,635 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 [2023-11-28 20:35:36,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:35:36,654 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 [2023-11-28 20:35:36,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:35:36,664 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 [2023-11-28 20:35:36,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:35:36,674 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 [2023-11-28 20:35:36,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:35:36,683 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 [2023-11-28 20:35:36,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:35:36,694 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 [2023-11-28 20:35:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:36,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:35:36,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:35:36,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622571475] [2023-11-28 20:35:36,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622571475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:36,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:36,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 20:35:36,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63057720] [2023-11-28 20:35:36,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:36,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:35:36,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:35:36,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:35:36,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:35:36,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 148 [2023-11-28 20:35:36,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 123 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:36,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:35:36,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 148 [2023-11-28 20:35:36,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:36:24,274 INFO L124 PetriNetUnfolderBase]: 361329/481012 cut-off events. [2023-11-28 20:36:24,274 INFO L125 PetriNetUnfolderBase]: For 29304/29370 co-relation queries the response was YES. [2023-11-28 20:36:25,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950352 conditions, 481012 events. 361329/481012 cut-off events. For 29304/29370 co-relation queries the response was YES. Maximal size of possible extension queue 21537. Compared 3554173 event pairs, 292849 based on Foata normal form. 59782/391746 useless extension candidates. Maximal degree in co-relation 947889. Up to 437542 conditions per place. [2023-11-28 20:36:28,951 INFO L140 encePairwiseOnDemand]: 140/148 looper letters, 65 selfloop transitions, 2 changer transitions 0/116 dead transitions. [2023-11-28 20:36:28,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 116 transitions, 414 flow [2023-11-28 20:36:28,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:36:28,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:36:28,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-11-28 20:36:28,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5968468468468469 [2023-11-28 20:36:28,966 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-11-28 20:36:28,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-11-28 20:36:28,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:36:28,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-11-28 20:36:28,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:28,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:28,980 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:28,982 INFO L175 Difference]: Start difference. First operand has 129 places, 123 transitions, 294 flow. Second operand 3 states and 265 transitions. [2023-11-28 20:36:28,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 116 transitions, 414 flow [2023-11-28 20:36:30,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 116 transitions, 382 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-28 20:36:30,714 INFO L231 Difference]: Finished difference. Result has 116 places, 116 transitions, 252 flow [2023-11-28 20:36:30,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=116, PETRI_TRANSITIONS=116} [2023-11-28 20:36:30,720 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -13 predicate places. [2023-11-28 20:36:30,720 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 116 transitions, 252 flow [2023-11-28 20:36:30,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:30,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:36:30,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-28 20:36:30,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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 [2023-11-28 20:36:30,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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 [2023-11-28 20:36:30,922 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-11-28 20:36:30,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:30,923 INFO L85 PathProgramCache]: Analyzing trace with hash 997200, now seen corresponding path program 1 times [2023-11-28 20:36:30,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:36:30,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432255196] [2023-11-28 20:36:30,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:30,924 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 [2023-11-28 20:36:30,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:36:30,926 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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) [2023-11-28 20:36:30,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ff94b2-9dfd-4dbe-838f-9c361529517e/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 [2023-11-28 20:36:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:31,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:36:31,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:31,049 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 13 treesize of output 7 [2023-11-28 20:36:31,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:36:31,077 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 18 treesize of output 1 [2023-11-28 20:36:31,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:36:31,089 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 8 treesize of output 1 [2023-11-28 20:36:31,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:36:31,102 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 13 treesize of output 1 [2023-11-28 20:36:31,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:36:31,117 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 13 treesize of output 1 [2023-11-28 20:36:31,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:36:31,126 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 8 treesize of output 1 [2023-11-28 20:36:31,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:31,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:36:31,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:36:31,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432255196] [2023-11-28 20:36:31,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432255196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:36:31,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:36:31,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:36:31,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319480705] [2023-11-28 20:36:31,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:36:31,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:36:31,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:36:31,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:36:31,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:36:31,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 148 [2023-11-28 20:36:31,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 116 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:31,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:36:31,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 148 [2023-11-28 20:36:31,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand