./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:33:46,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:33:46,944 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:33:46,948 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:33:46,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:33:46,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:33:46,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:33:46,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:33:46,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:33:46,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:33:46,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:33:46,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:33:46,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:33:46,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:33:46,979 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:33:46,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:33:46,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:33:46,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:33:46,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:33:46,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:33:46,981 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:33:46,983 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:33:46,984 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:33:46,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:33:46,984 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:33:46,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:33:46,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:33:46,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:33:46,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:33:46,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:33:46,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:33:46,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:33:46,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:33:46,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:33:46,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:33:46,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:33:46,986 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:33:46,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:33:46,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:33:46,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:33:46,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:33:46,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:33:46,989 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-11-22 21:33:47,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:33:47,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:33:47,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:33:47,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:33:47,241 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:33:47,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-22 21:33:48,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:33:48,773 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:33:48,775 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-22 21:33:48,810 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2febdff6/c925c6c0c9f74d31b244cd1c1f3523a6/FLAG05bfb33bc [2024-11-22 21:33:49,084 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2febdff6/c925c6c0c9f74d31b244cd1c1f3523a6 [2024-11-22 21:33:49,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:33:49,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:33:49,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:33:49,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:33:49,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:33:49,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:33:49" (1/1) ... [2024-11-22 21:33:49,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374e4eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:49, skipping insertion in model container [2024-11-22 21:33:49,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:33:49" (1/1) ... [2024-11-22 21:33:49,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:33:49,461 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:33:49,472 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:33:49,482 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:33:49,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:33:49,504 ERROR L321 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) [2024-11-22 21:33:49,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6db7e3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:49, skipping insertion in model container [2024-11-22 21:33:49,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:33:49,505 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-22 21:33:49,506 INFO L158 Benchmark]: Toolchain (without parser) took 418.31ms. Allocated memory is still 146.8MB. Free memory was 86.1MB in the beginning and 63.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-22 21:33:49,507 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 146.8MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:33:49,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.55ms. Allocated memory is still 146.8MB. Free memory was 86.1MB in the beginning and 63.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-22 21:33:49,509 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 146.8MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.55ms. Allocated memory is still 146.8MB. Free memory was 86.1MB in the beginning and 63.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3902]: 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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:33:51,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:33:51,198 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-22 21:33:51,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:33:51,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:33:51,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:33:51,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:33:51,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:33:51,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:33:51,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:33:51,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:33:51,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:33:51,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:33:51,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:33:51,239 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:33:51,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:33:51,239 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:33:51,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:33:51,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:33:51,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:33:51,240 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:33:51,243 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:33:51,244 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:33:51,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:33:51,244 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:33:51,244 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-22 21:33:51,244 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:33:51,244 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-22 21:33:51,245 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:33:51,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:33:51,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:33:51,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:33:51,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:33:51,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:33:51,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:33:51,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:33:51,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:33:51,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:33:51,248 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-22 21:33:51,248 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-22 21:33:51,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:33:51,249 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:33:51,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:33:51,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:33:51,249 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-11-22 21:33:51,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:33:51,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:33:51,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:33:51,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:33:51,556 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:33:51,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-22 21:33:52,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:33:53,138 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:33:53,140 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-22 21:33:53,173 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d84191b/cae7097280f34a82914c07ac8ad2f3f4/FLAG44759f085 [2024-11-22 21:33:53,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d84191b/cae7097280f34a82914c07ac8ad2f3f4 [2024-11-22 21:33:53,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:33:53,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:33:53,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:33:53,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:33:53,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:33:53,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4d85b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53, skipping insertion in model container [2024-11-22 21:33:53,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,260 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:33:53,586 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:33:53,603 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:33:53,609 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:33:53,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:33:53,631 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-22 21:33:53,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:33:53,690 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:33:53,693 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:33:53,695 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:33:53,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:33:53,701 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:33:53,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:33:53,824 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:33:53,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53 WrapperNode [2024-11-22 21:33:53,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:33:53,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:33:53,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:33:53,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:33:53,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,881 INFO L138 Inliner]: procedures = 249, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 142 [2024-11-22 21:33:53,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:33:53,882 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:33:53,882 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:33:53,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:33:53,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,894 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,913 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 13, 2]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 6, 2]. [2024-11-22 21:33:53,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,926 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:33:53,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:33:53,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:33:53,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:33:53,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (1/1) ... [2024-11-22 21:33:53,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:33:53,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:33:53,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 21:33:53,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 21:33:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-22 21:33:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-22 21:33:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-22 21:33:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-22 21:33:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-22 21:33:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 21:33:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 21:33:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-22 21:33:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-22 21:33:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-22 21:33:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-22 21:33:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-22 21:33:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-22 21:33:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 21:33:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 21:33:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:33:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 21:33:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 21:33:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 21:33:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:33:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:33:54,027 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:33:54,300 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:33:54,302 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:33:54,753 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:33:54,755 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:33:54,852 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:33:54,853 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 21:33:54,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:33:54 BoogieIcfgContainer [2024-11-22 21:33:54,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:33:54,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:33:54,855 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:33:54,858 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:33:54,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:33:53" (1/3) ... [2024-11-22 21:33:54,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de23f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:33:54, skipping insertion in model container [2024-11-22 21:33:54,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:33:53" (2/3) ... [2024-11-22 21:33:54,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de23f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:33:54, skipping insertion in model container [2024-11-22 21:33:54,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:33:54" (3/3) ... [2024-11-22 21:33:54,861 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2024-11-22 21:33:54,874 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:33:54,874 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-11-22 21:33:54,874 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:33:54,939 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 21:33:54,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 132 transitions, 278 flow [2024-11-22 21:33:55,037 INFO L124 PetriNetUnfolderBase]: 18/165 cut-off events. [2024-11-22 21:33:55,037 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:33:55,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 165 events. 18/165 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 521 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2024-11-22 21:33:55,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 132 transitions, 278 flow [2024-11-22 21:33:55,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 130 transitions, 272 flow [2024-11-22 21:33:55,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:33:55,064 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c1e2b46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:33:55,065 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-22 21:33:55,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:33:55,068 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-22 21:33:55,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:33:55,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:33:55,069 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-22 21:33:55,069 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:33:55,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:33:55,073 INFO L85 PathProgramCache]: Analyzing trace with hash 492833, now seen corresponding path program 1 times [2024-11-22 21:33:55,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:33:55,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091309500] [2024-11-22 21:33:55,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:33:55,086 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 [2024-11-22 21:33:55,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:33:55,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:33:55,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:33:55,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:33:55,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:33:55,253 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:33:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:33:55,265 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:33:55,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:33:55,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091309500] [2024-11-22 21:33:55,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091309500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:33:55,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:33:55,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:33:55,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333766788] [2024-11-22 21:33:55,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:33:55,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:33:55,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:33:55,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:33:55,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:33:55,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-22 21:33:55,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 272 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) [2024-11-22 21:33:55,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:33:55,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-22 21:33:55,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:33:55,928 INFO L124 PetriNetUnfolderBase]: 707/2028 cut-off events. [2024-11-22 21:33:55,929 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-22 21:33:55,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3244 conditions, 2028 events. 707/2028 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15833 event pairs, 95 based on Foata normal form. 156/1875 useless extension candidates. Maximal degree in co-relation 3071. Up to 1002 conditions per place. [2024-11-22 21:33:55,948 INFO L140 encePairwiseOnDemand]: 114/132 looper letters, 54 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-11-22 21:33:55,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 118 transitions, 360 flow [2024-11-22 21:33:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:33:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:33:55,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-22 21:33:55,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-22 21:33:55,961 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 272 flow. Second operand 3 states and 264 transitions. [2024-11-22 21:33:55,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 118 transitions, 360 flow [2024-11-22 21:33:55,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 352 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:33:55,967 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-11-22 21:33:55,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-11-22 21:33:55,971 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -12 predicate places. [2024-11-22 21:33:55,971 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-11-22 21:33:55,972 INFO L472 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) [2024-11-22 21:33:55,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:33:55,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-22 21:33:55,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:56,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:56,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:33:56,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:33:56,178 INFO L85 PathProgramCache]: Analyzing trace with hash 492834, now seen corresponding path program 1 times [2024-11-22 21:33:56,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:33:56,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836174394] [2024-11-22 21:33:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:33:56,179 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 [2024-11-22 21:33:56,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:33:56,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:33:56,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:33:56,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:33:56,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:33:56,297 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 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:33:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:33:56,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:33:56,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:33:56,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836174394] [2024-11-22 21:33:56,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836174394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:33:56,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:33:56,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:33:56,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058069527] [2024-11-22 21:33:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:33:56,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:33:56,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:33:56,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:33:56,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:33:56,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2024-11-22 21:33:56,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:33:56,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:33:56,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2024-11-22 21:33:56,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:33:56,792 INFO L124 PetriNetUnfolderBase]: 707/2024 cut-off events. [2024-11-22 21:33:56,793 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-22 21:33:56,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3261 conditions, 2024 events. 707/2024 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15812 event pairs, 95 based on Foata normal form. 2/1717 useless extension candidates. Maximal degree in co-relation 488. Up to 1002 conditions per place. [2024-11-22 21:33:56,803 INFO L140 encePairwiseOnDemand]: 126/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-11-22 21:33:56,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 114 transitions, 344 flow [2024-11-22 21:33:56,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:33:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:33:56,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2024-11-22 21:33:56,808 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465 [2024-11-22 21:33:56,808 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 256 transitions. [2024-11-22 21:33:56,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 114 transitions, 344 flow [2024-11-22 21:33:56,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 114 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:33:56,812 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 216 flow [2024-11-22 21:33:56,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2024-11-22 21:33:56,813 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-22 21:33:56,813 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 216 flow [2024-11-22 21:33:56,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:33:56,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:33:56,813 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-22 21:33:56,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:57,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:57,018 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:33:57,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:33:57,018 INFO L85 PathProgramCache]: Analyzing trace with hash 15275921, now seen corresponding path program 1 times [2024-11-22 21:33:57,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:33:57,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051483772] [2024-11-22 21:33:57,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:33:57,019 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 [2024-11-22 21:33:57,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:33:57,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:33:57,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:33:57,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:33:57,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:33:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:33:57,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:33:57,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:33:57,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051483772] [2024-11-22 21:33:57,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051483772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:33:57,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:33:57,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:33:57,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677032729] [2024-11-22 21:33:57,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:33:57,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:33:57,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:33:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:33:57,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:33:57,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-22 21:33:57,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:33:57,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:33:57,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-22 21:33:57,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:33:57,319 INFO L124 PetriNetUnfolderBase]: 706/1707 cut-off events. [2024-11-22 21:33:57,319 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-22 21:33:57,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 1707 events. 706/1707 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11757 event pairs, 645 based on Foata normal form. 1/1455 useless extension candidates. Maximal degree in co-relation 1061. Up to 1092 conditions per place. [2024-11-22 21:33:57,328 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-11-22 21:33:57,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 113 transitions, 342 flow [2024-11-22 21:33:57,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:33:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:33:57,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-22 21:33:57,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6616161616161617 [2024-11-22 21:33:57,331 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 216 flow. Second operand 3 states and 262 transitions. [2024-11-22 21:33:57,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 113 transitions, 342 flow [2024-11-22 21:33:57,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 113 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:33:57,335 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 214 flow [2024-11-22 21:33:57,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-11-22 21:33:57,336 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-22 21:33:57,336 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 214 flow [2024-11-22 21:33:57,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:33:57,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:33:57,337 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:33:57,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:57,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:57,541 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:33:57,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:33:57,542 INFO L85 PathProgramCache]: Analyzing trace with hash 918000892, now seen corresponding path program 1 times [2024-11-22 21:33:57,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:33:57,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118918492] [2024-11-22 21:33:57,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:33:57,543 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 [2024-11-22 21:33:57,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:33:57,544 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:33:57,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:33:57,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:33:57,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:33:57,693 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:33:57,694 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:33:57,695 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:33:57,701 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 32 treesize of output 41 [2024-11-22 21:33:57,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:33:57,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 63 [2024-11-22 21:33:57,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:33:57,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 49 [2024-11-22 21:33:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:33:57,847 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:33:57,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:33:57,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118918492] [2024-11-22 21:33:57,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118918492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:33:57,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:33:57,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:33:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681580146] [2024-11-22 21:33:57,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:33:57,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:33:57,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:33:57,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:33:57,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:33:58,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-22 21:33:58,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:33:58,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:33:58,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-22 21:33:58,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:33:58,662 INFO L124 PetriNetUnfolderBase]: 1153/2678 cut-off events. [2024-11-22 21:33:58,663 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-22 21:33:58,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 2678 events. 1153/2678 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 19494 event pairs, 684 based on Foata normal form. 1/2357 useless extension candidates. Maximal degree in co-relation 4313. Up to 1845 conditions per place. [2024-11-22 21:33:58,674 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 52 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2024-11-22 21:33:58,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 110 transitions, 347 flow [2024-11-22 21:33:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:33:58,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:33:58,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 380 transitions. [2024-11-22 21:33:58,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-11-22 21:33:58,676 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 214 flow. Second operand 5 states and 380 transitions. [2024-11-22 21:33:58,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 110 transitions, 347 flow [2024-11-22 21:33:58,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 110 transitions, 343 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:33:58,680 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 236 flow [2024-11-22 21:33:58,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-11-22 21:33:58,681 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-22 21:33:58,681 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 236 flow [2024-11-22 21:33:58,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:33:58,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:33:58,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:33:58,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:58,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:58,882 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:33:58,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:33:58,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2144599793, now seen corresponding path program 1 times [2024-11-22 21:33:58,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:33:58,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253169438] [2024-11-22 21:33:58,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:33:58,883 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 [2024-11-22 21:33:58,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:33:58,886 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:33:58,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:33:59,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 21:33:59,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:33:59,009 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:33:59,009 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:33:59,010 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:33:59,012 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 32 treesize of output 41 [2024-11-22 21:33:59,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:33:59,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-11-22 21:33:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:33:59,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:33:59,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:33:59,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253169438] [2024-11-22 21:33:59,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253169438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:33:59,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:33:59,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:33:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355876854] [2024-11-22 21:33:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:33:59,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:33:59,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:33:59,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:33:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:33:59,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-22 21:33:59,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:33:59,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:33:59,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-22 21:33:59,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:33:59,597 INFO L124 PetriNetUnfolderBase]: 1153/2675 cut-off events. [2024-11-22 21:33:59,597 INFO L125 PetriNetUnfolderBase]: For 221/227 co-relation queries the response was YES. [2024-11-22 21:33:59,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4861 conditions, 2675 events. 1153/2675 cut-off events. For 221/227 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 19524 event pairs, 684 based on Foata normal form. 7/2360 useless extension candidates. Maximal degree in co-relation 1969. Up to 1845 conditions per place. [2024-11-22 21:33:59,624 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 51 selfloop transitions, 6 changer transitions 0/107 dead transitions. [2024-11-22 21:33:59,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 107 transitions, 359 flow [2024-11-22 21:33:59,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:33:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:33:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2024-11-22 21:33:59,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2024-11-22 21:33:59,628 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 236 flow. Second operand 4 states and 318 transitions. [2024-11-22 21:33:59,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 107 transitions, 359 flow [2024-11-22 21:33:59,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 107 transitions, 351 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:33:59,630 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 234 flow [2024-11-22 21:33:59,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-11-22 21:33:59,632 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -19 predicate places. [2024-11-22 21:33:59,632 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 234 flow [2024-11-22 21:33:59,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:33:59,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:33:59,633 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:33:59,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:59,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:59,834 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:33:59,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:33:59,834 INFO L85 PathProgramCache]: Analyzing trace with hash -859869638, now seen corresponding path program 1 times [2024-11-22 21:33:59,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:33:59,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530467273] [2024-11-22 21:33:59,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:33:59,835 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 [2024-11-22 21:33:59,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:33:59,838 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:33:59,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:33:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:33:59,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:33:59,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:33:59,955 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:33:59,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:33:59,981 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:33:59,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:33:59,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530467273] [2024-11-22 21:33:59,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530467273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:33:59,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:33:59,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:33:59,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595676239] [2024-11-22 21:33:59,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:33:59,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:33:59,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:33:59,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:33:59,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:00,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2024-11-22 21:34:00,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:00,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:00,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2024-11-22 21:34:00,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:00,351 INFO L124 PetriNetUnfolderBase]: 977/2250 cut-off events. [2024-11-22 21:34:00,352 INFO L125 PetriNetUnfolderBase]: For 75/78 co-relation queries the response was YES. [2024-11-22 21:34:00,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4003 conditions, 2250 events. 977/2250 cut-off events. For 75/78 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 15591 event pairs, 746 based on Foata normal form. 0/2071 useless extension candidates. Maximal degree in co-relation 1940. Up to 1391 conditions per place. [2024-11-22 21:34:00,361 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 52 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-22 21:34:00,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 105 transitions, 356 flow [2024-11-22 21:34:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:00,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-11-22 21:34:00,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2024-11-22 21:34:00,363 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 234 flow. Second operand 3 states and 246 transitions. [2024-11-22 21:34:00,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 105 transitions, 356 flow [2024-11-22 21:34:00,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 105 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:00,365 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 226 flow [2024-11-22 21:34:00,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-11-22 21:34:00,365 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -24 predicate places. [2024-11-22 21:34:00,366 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 226 flow [2024-11-22 21:34:00,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:00,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:00,366 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:00,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:00,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:00,567 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:00,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:00,567 INFO L85 PathProgramCache]: Analyzing trace with hash -859869637, now seen corresponding path program 1 times [2024-11-22 21:34:00,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:00,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256111853] [2024-11-22 21:34:00,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:00,568 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 [2024-11-22 21:34:00,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:00,569 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:00,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:00,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 21:34:00,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:00,667 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 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:00,733 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:00,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:00,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256111853] [2024-11-22 21:34:00,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256111853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:00,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:00,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:00,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517797759] [2024-11-22 21:34:00,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:00,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:00,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:00,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:00,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:00,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-22 21:34:00,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:00,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:00,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-22 21:34:00,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:01,065 INFO L124 PetriNetUnfolderBase]: 835/1981 cut-off events. [2024-11-22 21:34:01,065 INFO L125 PetriNetUnfolderBase]: For 117/120 co-relation queries the response was YES. [2024-11-22 21:34:01,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3543 conditions, 1981 events. 835/1981 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 13573 event pairs, 538 based on Foata normal form. 86/1876 useless extension candidates. Maximal degree in co-relation 2877. Up to 1012 conditions per place. [2024-11-22 21:34:01,074 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 63 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-11-22 21:34:01,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 112 transitions, 394 flow [2024-11-22 21:34:01,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:01,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:01,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2024-11-22 21:34:01,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-11-22 21:34:01,075 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 226 flow. Second operand 3 states and 261 transitions. [2024-11-22 21:34:01,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 112 transitions, 394 flow [2024-11-22 21:34:01,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 112 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:01,078 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 239 flow [2024-11-22 21:34:01,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-11-22 21:34:01,078 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -23 predicate places. [2024-11-22 21:34:01,078 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 239 flow [2024-11-22 21:34:01,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:01,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:01,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:01,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:01,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:01,279 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:01,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:01,280 INFO L85 PathProgramCache]: Analyzing trace with hash -797998779, now seen corresponding path program 1 times [2024-11-22 21:34:01,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:01,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339263388] [2024-11-22 21:34:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:01,280 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 [2024-11-22 21:34:01,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:01,283 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:01,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:01,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:34:01,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:01,384 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:01,417 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:01,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:01,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339263388] [2024-11-22 21:34:01,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339263388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:01,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:01,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:01,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832766257] [2024-11-22 21:34:01,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:01,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:01,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:01,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:01,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-22 21:34:01,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:01,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:01,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-22 21:34:01,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:02,152 INFO L124 PetriNetUnfolderBase]: 1177/2694 cut-off events. [2024-11-22 21:34:02,152 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2024-11-22 21:34:02,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5052 conditions, 2694 events. 1177/2694 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 19116 event pairs, 145 based on Foata normal form. 62/2638 useless extension candidates. Maximal degree in co-relation 3206. Up to 1078 conditions per place. [2024-11-22 21:34:02,162 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 100 selfloop transitions, 15 changer transitions 1/162 dead transitions. [2024-11-22 21:34:02,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 162 transitions, 628 flow [2024-11-22 21:34:02,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:34:02,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:34:02,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 640 transitions. [2024-11-22 21:34:02,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-22 21:34:02,165 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 239 flow. Second operand 8 states and 640 transitions. [2024-11-22 21:34:02,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 162 transitions, 628 flow [2024-11-22 21:34:02,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 162 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:34:02,170 INFO L231 Difference]: Finished difference. Result has 109 places, 106 transitions, 345 flow [2024-11-22 21:34:02,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=345, PETRI_PLACES=109, PETRI_TRANSITIONS=106} [2024-11-22 21:34:02,172 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -13 predicate places. [2024-11-22 21:34:02,172 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 106 transitions, 345 flow [2024-11-22 21:34:02,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:02,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:02,173 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:02,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:02,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:02,378 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:02,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:02,378 INFO L85 PathProgramCache]: Analyzing trace with hash -797998778, now seen corresponding path program 1 times [2024-11-22 21:34:02,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:02,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848517633] [2024-11-22 21:34:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:02,379 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 [2024-11-22 21:34:02,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:02,380 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:02,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:02,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 21:34:02,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:02,485 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 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:02,552 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:02,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:02,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848517633] [2024-11-22 21:34:02,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848517633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:02,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:02,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:02,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212941639] [2024-11-22 21:34:02,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:02,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:02,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:02,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:02,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:02,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 132 [2024-11-22 21:34:02,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 106 transitions, 345 flow. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:02,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:02,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 132 [2024-11-22 21:34:02,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:03,243 INFO L124 PetriNetUnfolderBase]: 914/2228 cut-off events. [2024-11-22 21:34:03,243 INFO L125 PetriNetUnfolderBase]: For 1017/1103 co-relation queries the response was YES. [2024-11-22 21:34:03,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 2228 events. 914/2228 cut-off events. For 1017/1103 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 15825 event pairs, 148 based on Foata normal form. 257/2410 useless extension candidates. Maximal degree in co-relation 4099. Up to 1074 conditions per place. [2024-11-22 21:34:03,266 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 89 selfloop transitions, 12 changer transitions 2/154 dead transitions. [2024-11-22 21:34:03,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 154 transitions, 659 flow [2024-11-22 21:34:03,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:34:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:34:03,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2024-11-22 21:34:03,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6201298701298701 [2024-11-22 21:34:03,269 INFO L175 Difference]: Start difference. First operand has 109 places, 106 transitions, 345 flow. Second operand 7 states and 573 transitions. [2024-11-22 21:34:03,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 154 transitions, 659 flow [2024-11-22 21:34:03,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 154 transitions, 659 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 21:34:03,273 INFO L231 Difference]: Finished difference. Result has 118 places, 108 transitions, 405 flow [2024-11-22 21:34:03,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=405, PETRI_PLACES=118, PETRI_TRANSITIONS=108} [2024-11-22 21:34:03,274 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -4 predicate places. [2024-11-22 21:34:03,275 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 108 transitions, 405 flow [2024-11-22 21:34:03,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:03,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:03,276 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:03,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:03,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:03,477 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:03,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:03,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1027020276, now seen corresponding path program 1 times [2024-11-22 21:34:03,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:03,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717061145] [2024-11-22 21:34:03,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:03,478 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 [2024-11-22 21:34:03,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:03,480 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:03,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:03,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:34:03,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:03,583 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:03,624 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:03,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:03,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717061145] [2024-11-22 21:34:03,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717061145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:03,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:03,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:03,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360012477] [2024-11-22 21:34:03,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:03,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:03,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:03,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:03,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:03,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-22 21:34:03,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 108 transitions, 405 flow. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:03,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:03,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-22 21:34:03,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:04,321 INFO L124 PetriNetUnfolderBase]: 1336/3053 cut-off events. [2024-11-22 21:34:04,321 INFO L125 PetriNetUnfolderBase]: For 2699/2849 co-relation queries the response was YES. [2024-11-22 21:34:04,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6754 conditions, 3053 events. 1336/3053 cut-off events. For 2699/2849 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 22205 event pairs, 340 based on Foata normal form. 98/3084 useless extension candidates. Maximal degree in co-relation 5927. Up to 1093 conditions per place. [2024-11-22 21:34:04,336 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 111 selfloop transitions, 20 changer transitions 0/179 dead transitions. [2024-11-22 21:34:04,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 179 transitions, 910 flow [2024-11-22 21:34:04,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:34:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:34:04,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 644 transitions. [2024-11-22 21:34:04,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6098484848484849 [2024-11-22 21:34:04,338 INFO L175 Difference]: Start difference. First operand has 118 places, 108 transitions, 405 flow. Second operand 8 states and 644 transitions. [2024-11-22 21:34:04,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 179 transitions, 910 flow [2024-11-22 21:34:04,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 179 transitions, 877 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 21:34:04,345 INFO L231 Difference]: Finished difference. Result has 124 places, 118 transitions, 535 flow [2024-11-22 21:34:04,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=535, PETRI_PLACES=124, PETRI_TRANSITIONS=118} [2024-11-22 21:34:04,347 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 2 predicate places. [2024-11-22 21:34:04,347 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 118 transitions, 535 flow [2024-11-22 21:34:04,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:04,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:04,347 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:04,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:04,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:04,548 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:04,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1027020275, now seen corresponding path program 1 times [2024-11-22 21:34:04,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:04,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520539953] [2024-11-22 21:34:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:04,549 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 [2024-11-22 21:34:04,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:04,550 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:04,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:04,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 21:34:04,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:04,658 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 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:04,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:04,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:04,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:04,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520539953] [2024-11-22 21:34:04,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520539953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:04,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:04,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:04,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656181847] [2024-11-22 21:34:04,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:04,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:04,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:04,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:04,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:04,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 132 [2024-11-22 21:34:04,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 118 transitions, 535 flow. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:04,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:04,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 132 [2024-11-22 21:34:04,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:05,422 INFO L124 PetriNetUnfolderBase]: 1002/2495 cut-off events. [2024-11-22 21:34:05,423 INFO L125 PetriNetUnfolderBase]: For 3013/3221 co-relation queries the response was YES. [2024-11-22 21:34:05,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5953 conditions, 2495 events. 1002/2495 cut-off events. For 3013/3221 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 18509 event pairs, 160 based on Foata normal form. 330/2784 useless extension candidates. Maximal degree in co-relation 5344. Up to 1228 conditions per place. [2024-11-22 21:34:05,432 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 98 selfloop transitions, 17 changer transitions 1/169 dead transitions. [2024-11-22 21:34:05,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 169 transitions, 915 flow [2024-11-22 21:34:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:34:05,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:34:05,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 575 transitions. [2024-11-22 21:34:05,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6222943722943723 [2024-11-22 21:34:05,436 INFO L175 Difference]: Start difference. First operand has 124 places, 118 transitions, 535 flow. Second operand 7 states and 575 transitions. [2024-11-22 21:34:05,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 169 transitions, 915 flow [2024-11-22 21:34:05,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 169 transitions, 912 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:34:05,442 INFO L231 Difference]: Finished difference. Result has 132 places, 121 transitions, 617 flow [2024-11-22 21:34:05,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=617, PETRI_PLACES=132, PETRI_TRANSITIONS=121} [2024-11-22 21:34:05,443 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2024-11-22 21:34:05,443 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 121 transitions, 617 flow [2024-11-22 21:34:05,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:05,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:05,444 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:05,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)] Ended with exit code 0 [2024-11-22 21:34:05,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:05,648 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:05,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2035896848, now seen corresponding path program 1 times [2024-11-22 21:34:05,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:05,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671079277] [2024-11-22 21:34:05,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:05,649 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 [2024-11-22 21:34:05,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:05,651 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:05,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:05,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:34:05,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:05,799 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:05,800 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:05,800 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:05,801 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 32 treesize of output 41 [2024-11-22 21:34:05,832 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:05,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 63 [2024-11-22 21:34:05,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:05,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 53 [2024-11-22 21:34:05,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:05,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:05,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:05,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671079277] [2024-11-22 21:34:05,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671079277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:05,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:05,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:05,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217547974] [2024-11-22 21:34:05,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:05,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:05,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:05,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:05,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:06,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-22 21:34:06,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 121 transitions, 617 flow. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:06,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:06,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-22 21:34:06,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:07,761 INFO L124 PetriNetUnfolderBase]: 1837/3732 cut-off events. [2024-11-22 21:34:07,761 INFO L125 PetriNetUnfolderBase]: For 6542/6818 co-relation queries the response was YES. [2024-11-22 21:34:07,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10096 conditions, 3732 events. 1837/3732 cut-off events. For 6542/6818 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 26467 event pairs, 747 based on Foata normal form. 126/3814 useless extension candidates. Maximal degree in co-relation 9222. Up to 2298 conditions per place. [2024-11-22 21:34:07,776 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 109 selfloop transitions, 23 changer transitions 0/178 dead transitions. [2024-11-22 21:34:07,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 178 transitions, 1123 flow [2024-11-22 21:34:07,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:34:07,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:34:07,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2024-11-22 21:34:07,777 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6174242424242424 [2024-11-22 21:34:07,777 INFO L175 Difference]: Start difference. First operand has 132 places, 121 transitions, 617 flow. Second operand 6 states and 489 transitions. [2024-11-22 21:34:07,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 178 transitions, 1123 flow [2024-11-22 21:34:07,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 178 transitions, 1095 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 21:34:07,787 INFO L231 Difference]: Finished difference. Result has 136 places, 144 transitions, 823 flow [2024-11-22 21:34:07,787 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=823, PETRI_PLACES=136, PETRI_TRANSITIONS=144} [2024-11-22 21:34:07,787 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 14 predicate places. [2024-11-22 21:34:07,787 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 144 transitions, 823 flow [2024-11-22 21:34:07,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:07,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:07,788 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:07,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:07,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:07,989 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:07,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:07,989 INFO L85 PathProgramCache]: Analyzing trace with hash 627256280, now seen corresponding path program 1 times [2024-11-22 21:34:07,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:07,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061824437] [2024-11-22 21:34:07,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:07,990 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 [2024-11-22 21:34:07,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:07,992 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:07,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:08,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-22 21:34:08,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:08,155 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 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:08,164 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:08,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:08,324 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 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-22 21:34:08,334 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:34:08,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-22 21:34:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:08,348 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:08,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:08,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061824437] [2024-11-22 21:34:08,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061824437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:08,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:08,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:08,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802062189] [2024-11-22 21:34:08,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:08,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:34:08,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:08,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:34:08,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:34:08,823 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2024-11-22 21:34:08,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 144 transitions, 823 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:08,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:08,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2024-11-22 21:34:08,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:09,565 INFO L124 PetriNetUnfolderBase]: 2107/4457 cut-off events. [2024-11-22 21:34:09,565 INFO L125 PetriNetUnfolderBase]: For 8936/9181 co-relation queries the response was YES. [2024-11-22 21:34:09,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13281 conditions, 4457 events. 2107/4457 cut-off events. For 8936/9181 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 33978 event pairs, 424 based on Foata normal form. 71/4436 useless extension candidates. Maximal degree in co-relation 12173. Up to 1805 conditions per place. [2024-11-22 21:34:09,585 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 146 selfloop transitions, 24 changer transitions 0/220 dead transitions. [2024-11-22 21:34:09,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 220 transitions, 1448 flow [2024-11-22 21:34:09,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:34:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:34:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 690 transitions. [2024-11-22 21:34:09,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5808080808080808 [2024-11-22 21:34:09,588 INFO L175 Difference]: Start difference. First operand has 136 places, 144 transitions, 823 flow. Second operand 9 states and 690 transitions. [2024-11-22 21:34:09,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 220 transitions, 1448 flow [2024-11-22 21:34:09,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 220 transitions, 1419 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:09,604 INFO L231 Difference]: Finished difference. Result has 140 places, 142 transitions, 842 flow [2024-11-22 21:34:09,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=842, PETRI_PLACES=140, PETRI_TRANSITIONS=142} [2024-11-22 21:34:09,604 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-11-22 21:34:09,604 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 142 transitions, 842 flow [2024-11-22 21:34:09,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:09,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:09,605 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:09,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:09,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:09,810 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:09,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:09,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1670382524, now seen corresponding path program 1 times [2024-11-22 21:34:09,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:09,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260361392] [2024-11-22 21:34:09,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:09,812 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 [2024-11-22 21:34:09,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:09,815 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:09,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:09,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-22 21:34:09,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:09,965 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 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:09,968 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:10,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:10,090 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 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-22 21:34:10,105 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:34:10,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-22 21:34:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:10,121 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:10,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:10,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260361392] [2024-11-22 21:34:10,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260361392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:10,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:10,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666037445] [2024-11-22 21:34:10,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:10,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:34:10,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:10,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:34:10,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:34:10,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2024-11-22 21:34:10,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 142 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:10,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:10,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2024-11-22 21:34:10,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:11,336 INFO L124 PetriNetUnfolderBase]: 2387/5013 cut-off events. [2024-11-22 21:34:11,336 INFO L125 PetriNetUnfolderBase]: For 11207/11550 co-relation queries the response was YES. [2024-11-22 21:34:11,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14950 conditions, 5013 events. 2387/5013 cut-off events. For 11207/11550 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 39251 event pairs, 738 based on Foata normal form. 92/5031 useless extension candidates. Maximal degree in co-relation 13868. Up to 1812 conditions per place. [2024-11-22 21:34:11,355 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 151 selfloop transitions, 24 changer transitions 0/223 dead transitions. [2024-11-22 21:34:11,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 223 transitions, 1503 flow [2024-11-22 21:34:11,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:34:11,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:34:11,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 695 transitions. [2024-11-22 21:34:11,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.585016835016835 [2024-11-22 21:34:11,357 INFO L175 Difference]: Start difference. First operand has 140 places, 142 transitions, 842 flow. Second operand 9 states and 695 transitions. [2024-11-22 21:34:11,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 223 transitions, 1503 flow [2024-11-22 21:34:11,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 223 transitions, 1445 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-22 21:34:11,372 INFO L231 Difference]: Finished difference. Result has 138 places, 140 transitions, 840 flow [2024-11-22 21:34:11,372 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=840, PETRI_PLACES=138, PETRI_TRANSITIONS=140} [2024-11-22 21:34:11,373 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 16 predicate places. [2024-11-22 21:34:11,373 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 140 transitions, 840 flow [2024-11-22 21:34:11,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:11,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:11,374 INFO L204 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] [2024-11-22 21:34:11,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)] Ended with exit code 0 [2024-11-22 21:34:11,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:11,578 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:11,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:11,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2073608629, now seen corresponding path program 1 times [2024-11-22 21:34:11,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:11,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936836957] [2024-11-22 21:34:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:11,579 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 [2024-11-22 21:34:11,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:11,580 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:11,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (16)] Waiting until timeout for monitored process [2024-11-22 21:34:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:11,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 21:34:11,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:11,747 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:11,748 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:11,748 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:11,749 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 32 treesize of output 41 [2024-11-22 21:34:11,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:11,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2024-11-22 21:34:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:11,817 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:11,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:11,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936836957] [2024-11-22 21:34:11,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936836957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:11,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:11,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:11,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997533005] [2024-11-22 21:34:11,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:11,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:11,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:11,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:11,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:11,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-22 21:34:11,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 140 transitions, 840 flow. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:11,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:11,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-22 21:34:11,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:13,188 INFO L124 PetriNetUnfolderBase]: 2542/5265 cut-off events. [2024-11-22 21:34:13,188 INFO L125 PetriNetUnfolderBase]: For 16376/16829 co-relation queries the response was YES. [2024-11-22 21:34:13,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16846 conditions, 5265 events. 2542/5265 cut-off events. For 16376/16829 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 41272 event pairs, 1223 based on Foata normal form. 202/5391 useless extension candidates. Maximal degree in co-relation 15396. Up to 3275 conditions per place. [2024-11-22 21:34:13,213 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 114 selfloop transitions, 35 changer transitions 0/190 dead transitions. [2024-11-22 21:34:13,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 190 transitions, 1454 flow [2024-11-22 21:34:13,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:34:13,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:34:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 416 transitions. [2024-11-22 21:34:13,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-22 21:34:13,218 INFO L175 Difference]: Start difference. First operand has 138 places, 140 transitions, 840 flow. Second operand 5 states and 416 transitions. [2024-11-22 21:34:13,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 190 transitions, 1454 flow [2024-11-22 21:34:13,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 190 transitions, 1403 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-22 21:34:13,300 INFO L231 Difference]: Finished difference. Result has 139 places, 159 transitions, 1127 flow [2024-11-22 21:34:13,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1127, PETRI_PLACES=139, PETRI_TRANSITIONS=159} [2024-11-22 21:34:13,301 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2024-11-22 21:34:13,301 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 159 transitions, 1127 flow [2024-11-22 21:34:13,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:13,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:13,302 INFO L204 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] [2024-11-22 21:34:13,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (16)] Ended with exit code 0 [2024-11-22 21:34:13,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:13,503 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:13,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:13,503 INFO L85 PathProgramCache]: Analyzing trace with hash -142753304, now seen corresponding path program 1 times [2024-11-22 21:34:13,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:13,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289783334] [2024-11-22 21:34:13,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:13,504 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 [2024-11-22 21:34:13,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:13,505 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:13,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (17)] Waiting until timeout for monitored process [2024-11-22 21:34:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:13,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 21:34:13,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:13,753 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_79| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79| (_ bv0 1)) |c_#valid|))) is different from true [2024-11-22 21:34:13,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:13,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:13,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:13,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289783334] [2024-11-22 21:34:13,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289783334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:13,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:13,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:13,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411489883] [2024-11-22 21:34:13,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:13,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:13,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:13,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:13,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-22 21:34:13,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 132 [2024-11-22 21:34:13,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 159 transitions, 1127 flow. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:13,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:13,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 132 [2024-11-22 21:34:13,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:14,910 INFO L124 PetriNetUnfolderBase]: 4002/7518 cut-off events. [2024-11-22 21:34:14,910 INFO L125 PetriNetUnfolderBase]: For 23709/23713 co-relation queries the response was YES. [2024-11-22 21:34:14,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26836 conditions, 7518 events. 4002/7518 cut-off events. For 23709/23713 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 57345 event pairs, 1765 based on Foata normal form. 1/7496 useless extension candidates. Maximal degree in co-relation 24755. Up to 3488 conditions per place. [2024-11-22 21:34:14,938 INFO L140 encePairwiseOnDemand]: 106/132 looper letters, 145 selfloop transitions, 40 changer transitions 4/209 dead transitions. [2024-11-22 21:34:14,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 209 transitions, 1773 flow [2024-11-22 21:34:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:34:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:34:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 310 transitions. [2024-11-22 21:34:14,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2024-11-22 21:34:14,940 INFO L175 Difference]: Start difference. First operand has 139 places, 159 transitions, 1127 flow. Second operand 5 states and 310 transitions. [2024-11-22 21:34:14,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 209 transitions, 1773 flow [2024-11-22 21:34:14,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 209 transitions, 1759 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-22 21:34:14,996 INFO L231 Difference]: Finished difference. Result has 146 places, 177 transitions, 1407 flow [2024-11-22 21:34:14,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1407, PETRI_PLACES=146, PETRI_TRANSITIONS=177} [2024-11-22 21:34:14,996 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 24 predicate places. [2024-11-22 21:34:14,996 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 177 transitions, 1407 flow [2024-11-22 21:34:14,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:14,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:14,997 INFO L204 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] [2024-11-22 21:34:15,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (17)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:15,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:15,197 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:15,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:15,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1370943766, now seen corresponding path program 1 times [2024-11-22 21:34:15,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:15,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420093696] [2024-11-22 21:34:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:15,198 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 [2024-11-22 21:34:15,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:15,199 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:15,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (18)] Waiting until timeout for monitored process [2024-11-22 21:34:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:15,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:34:15,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:15,340 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 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:15,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:15,352 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:15,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:15,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420093696] [2024-11-22 21:34:15,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420093696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:15,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:15,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:15,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317496554] [2024-11-22 21:34:15,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:15,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:15,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:15,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:15,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:15,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-22 21:34:15,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 177 transitions, 1407 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:15,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:15,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-22 21:34:15,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:16,108 INFO L124 PetriNetUnfolderBase]: 2781/5512 cut-off events. [2024-11-22 21:34:16,108 INFO L125 PetriNetUnfolderBase]: For 26396/26865 co-relation queries the response was YES. [2024-11-22 21:34:16,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22840 conditions, 5512 events. 2781/5512 cut-off events. For 26396/26865 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 42810 event pairs, 1436 based on Foata normal form. 109/5439 useless extension candidates. Maximal degree in co-relation 21319. Up to 3831 conditions per place. [2024-11-22 21:34:16,134 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/183 dead transitions. [2024-11-22 21:34:16,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 183 transitions, 1663 flow [2024-11-22 21:34:16,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:16,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-22 21:34:16,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-11-22 21:34:16,135 INFO L175 Difference]: Start difference. First operand has 146 places, 177 transitions, 1407 flow. Second operand 3 states and 257 transitions. [2024-11-22 21:34:16,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 183 transitions, 1663 flow [2024-11-22 21:34:16,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 183 transitions, 1575 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-22 21:34:16,173 INFO L231 Difference]: Finished difference. Result has 142 places, 175 transitions, 1325 flow [2024-11-22 21:34:16,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1315, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1325, PETRI_PLACES=142, PETRI_TRANSITIONS=175} [2024-11-22 21:34:16,173 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 20 predicate places. [2024-11-22 21:34:16,174 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 175 transitions, 1325 flow [2024-11-22 21:34:16,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:16,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:16,174 INFO L204 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] [2024-11-22 21:34:16,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (18)] Ended with exit code 0 [2024-11-22 21:34:16,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:16,375 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:16,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:16,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1265102467, now seen corresponding path program 1 times [2024-11-22 21:34:16,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:16,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913808232] [2024-11-22 21:34:16,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:16,376 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 [2024-11-22 21:34:16,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:16,377 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:16,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (19)] Waiting until timeout for monitored process [2024-11-22 21:34:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:16,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:34:16,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:16,504 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:16,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:16,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:16,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913808232] [2024-11-22 21:34:16,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913808232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:16,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:16,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:16,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784469480] [2024-11-22 21:34:16,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:16,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:16,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-22 21:34:16,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 175 transitions, 1325 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:16,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:16,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-22 21:34:16,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:17,347 INFO L124 PetriNetUnfolderBase]: 2781/5504 cut-off events. [2024-11-22 21:34:17,348 INFO L125 PetriNetUnfolderBase]: For 23965/24434 co-relation queries the response was YES. [2024-11-22 21:34:17,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22446 conditions, 5504 events. 2781/5504 cut-off events. For 23965/24434 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 42687 event pairs, 1436 based on Foata normal form. 109/5431 useless extension candidates. Maximal degree in co-relation 21823. Up to 3831 conditions per place. [2024-11-22 21:34:17,384 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-11-22 21:34:17,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 181 transitions, 1581 flow [2024-11-22 21:34:17,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:17,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:17,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-22 21:34:17,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-11-22 21:34:17,386 INFO L175 Difference]: Start difference. First operand has 142 places, 175 transitions, 1325 flow. Second operand 3 states and 257 transitions. [2024-11-22 21:34:17,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 181 transitions, 1581 flow [2024-11-22 21:34:17,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 181 transitions, 1571 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:17,436 INFO L231 Difference]: Finished difference. Result has 140 places, 173 transitions, 1321 flow [2024-11-22 21:34:17,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1311, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1321, PETRI_PLACES=140, PETRI_TRANSITIONS=173} [2024-11-22 21:34:17,437 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-11-22 21:34:17,437 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 173 transitions, 1321 flow [2024-11-22 21:34:17,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:17,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:17,437 INFO L204 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] [2024-11-22 21:34:17,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (19)] Ended with exit code 0 [2024-11-22 21:34:17,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:17,638 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:17,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:17,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1161263181, now seen corresponding path program 1 times [2024-11-22 21:34:17,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:17,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275839439] [2024-11-22 21:34:17,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:17,639 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 [2024-11-22 21:34:17,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:17,640 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:17,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (20)] Waiting until timeout for monitored process [2024-11-22 21:34:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:17,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:34:17,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:17,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:17,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:17,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:17,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275839439] [2024-11-22 21:34:17,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275839439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:17,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:17,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:17,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260663606] [2024-11-22 21:34:17,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:17,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:17,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:17,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:17,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:17,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-22 21:34:17,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 173 transitions, 1321 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:17,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:17,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-22 21:34:17,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:17,989 INFO L124 PetriNetUnfolderBase]: 266/540 cut-off events. [2024-11-22 21:34:17,989 INFO L125 PetriNetUnfolderBase]: For 1911/1976 co-relation queries the response was YES. [2024-11-22 21:34:17,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2175 conditions, 540 events. 266/540 cut-off events. For 1911/1976 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2136 event pairs, 50 based on Foata normal form. 49/569 useless extension candidates. Maximal degree in co-relation 2147. Up to 269 conditions per place. [2024-11-22 21:34:17,992 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 60 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2024-11-22 21:34:17,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 100 transitions, 670 flow [2024-11-22 21:34:17,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:17,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:17,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2024-11-22 21:34:17,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.634469696969697 [2024-11-22 21:34:17,993 INFO L175 Difference]: Start difference. First operand has 140 places, 173 transitions, 1321 flow. Second operand 4 states and 335 transitions. [2024-11-22 21:34:17,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 100 transitions, 670 flow [2024-11-22 21:34:17,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 100 transitions, 490 flow, removed 33 selfloop flow, removed 30 redundant places. [2024-11-22 21:34:18,012 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 300 flow [2024-11-22 21:34:18,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=300, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2024-11-22 21:34:18,013 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -29 predicate places. [2024-11-22 21:34:18,013 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 300 flow [2024-11-22 21:34:18,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:18,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:18,014 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:18,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (20)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:18,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:18,214 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:18,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:18,215 INFO L85 PathProgramCache]: Analyzing trace with hash -879674172, now seen corresponding path program 1 times [2024-11-22 21:34:18,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:18,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264684264] [2024-11-22 21:34:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:18,215 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 [2024-11-22 21:34:18,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:18,216 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:18,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (21)] Waiting until timeout for monitored process [2024-11-22 21:34:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:18,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 21:34:18,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:18,483 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 11 treesize of output 9 [2024-11-22 21:34:18,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:18,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:18,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:18,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264684264] [2024-11-22 21:34:18,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264684264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:18,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:18,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 21:34:18,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320881296] [2024-11-22 21:34:18,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:18,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 21:34:18,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:18,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 21:34:18,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:34:18,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-22 21:34:18,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 300 flow. Second operand has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:18,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:18,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-22 21:34:18,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:19,196 INFO L124 PetriNetUnfolderBase]: 595/1232 cut-off events. [2024-11-22 21:34:19,196 INFO L125 PetriNetUnfolderBase]: For 1819/1832 co-relation queries the response was YES. [2024-11-22 21:34:19,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3573 conditions, 1232 events. 595/1232 cut-off events. For 1819/1832 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6826 event pairs, 84 based on Foata normal form. 17/1224 useless extension candidates. Maximal degree in co-relation 3561. Up to 384 conditions per place. [2024-11-22 21:34:19,200 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 106 selfloop transitions, 32 changer transitions 0/169 dead transitions. [2024-11-22 21:34:19,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 169 transitions, 957 flow [2024-11-22 21:34:19,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 21:34:19,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-22 21:34:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 889 transitions. [2024-11-22 21:34:19,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6122589531680441 [2024-11-22 21:34:19,202 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 300 flow. Second operand 11 states and 889 transitions. [2024-11-22 21:34:19,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 169 transitions, 957 flow [2024-11-22 21:34:19,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 169 transitions, 909 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:19,205 INFO L231 Difference]: Finished difference. Result has 107 places, 104 transitions, 553 flow [2024-11-22 21:34:19,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=553, PETRI_PLACES=107, PETRI_TRANSITIONS=104} [2024-11-22 21:34:19,205 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -15 predicate places. [2024-11-22 21:34:19,205 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 104 transitions, 553 flow [2024-11-22 21:34:19,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:19,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:19,206 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:19,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (21)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:19,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:19,406 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:19,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:19,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1430119404, now seen corresponding path program 2 times [2024-11-22 21:34:19,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:19,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506203995] [2024-11-22 21:34:19,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:34:19,407 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 [2024-11-22 21:34:19,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:19,409 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:19,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (22)] Waiting until timeout for monitored process [2024-11-22 21:34:19,607 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:34:19,607 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:19,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 21:34:19,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:19,678 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 11 treesize of output 9 [2024-11-22 21:34:19,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:19,704 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:19,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:19,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506203995] [2024-11-22 21:34:19,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506203995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:19,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:19,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 21:34:19,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330293718] [2024-11-22 21:34:19,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:19,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 21:34:19,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:19,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 21:34:19,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:34:19,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-22 21:34:19,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 104 transitions, 553 flow. Second operand has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:19,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:19,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-22 21:34:19,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:20,399 INFO L124 PetriNetUnfolderBase]: 664/1366 cut-off events. [2024-11-22 21:34:20,399 INFO L125 PetriNetUnfolderBase]: For 4020/4045 co-relation queries the response was YES. [2024-11-22 21:34:20,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4803 conditions, 1366 events. 664/1366 cut-off events. For 4020/4045 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7840 event pairs, 38 based on Foata normal form. 29/1374 useless extension candidates. Maximal degree in co-relation 4784. Up to 432 conditions per place. [2024-11-22 21:34:20,405 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 92 selfloop transitions, 52 changer transitions 0/175 dead transitions. [2024-11-22 21:34:20,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 175 transitions, 1318 flow [2024-11-22 21:34:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 21:34:20,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-22 21:34:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 936 transitions. [2024-11-22 21:34:20,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2024-11-22 21:34:20,407 INFO L175 Difference]: Start difference. First operand has 107 places, 104 transitions, 553 flow. Second operand 12 states and 936 transitions. [2024-11-22 21:34:20,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 175 transitions, 1318 flow [2024-11-22 21:34:20,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 175 transitions, 1262 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-22 21:34:20,413 INFO L231 Difference]: Finished difference. Result has 118 places, 127 transitions, 879 flow [2024-11-22 21:34:20,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=879, PETRI_PLACES=118, PETRI_TRANSITIONS=127} [2024-11-22 21:34:20,413 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -4 predicate places. [2024-11-22 21:34:20,414 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 127 transitions, 879 flow [2024-11-22 21:34:20,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:20,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:20,414 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:20,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (22)] Ended with exit code 0 [2024-11-22 21:34:20,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:20,615 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:20,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash 959047492, now seen corresponding path program 3 times [2024-11-22 21:34:20,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:20,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474836576] [2024-11-22 21:34:20,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:34:20,616 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 [2024-11-22 21:34:20,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:20,617 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:20,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (23)] Waiting until timeout for monitored process [2024-11-22 21:34:20,885 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 21:34:20,885 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:20,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:34:20,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:20,906 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:20,958 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-22 21:34:20,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-22 21:34:20,984 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 0 case distinctions, treesize of input 16 treesize of output 13 [2024-11-22 21:34:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:20,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:20,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:20,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474836576] [2024-11-22 21:34:20,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474836576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:20,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:20,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:20,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208091970] [2024-11-22 21:34:20,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:20,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:20,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:20,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:20,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:21,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 132 [2024-11-22 21:34:21,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 127 transitions, 879 flow. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:21,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:21,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 132 [2024-11-22 21:34:21,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:21,389 INFO L124 PetriNetUnfolderBase]: 660/1346 cut-off events. [2024-11-22 21:34:21,389 INFO L125 PetriNetUnfolderBase]: For 5574/5628 co-relation queries the response was YES. [2024-11-22 21:34:21,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5406 conditions, 1346 events. 660/1346 cut-off events. For 5574/5628 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7610 event pairs, 309 based on Foata normal form. 6/1313 useless extension candidates. Maximal degree in co-relation 5383. Up to 772 conditions per place. [2024-11-22 21:34:21,394 INFO L140 encePairwiseOnDemand]: 127/132 looper letters, 107 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-22 21:34:21,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 142 transitions, 1253 flow [2024-11-22 21:34:21,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:21,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 291 transitions. [2024-11-22 21:34:21,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5511363636363636 [2024-11-22 21:34:21,395 INFO L175 Difference]: Start difference. First operand has 118 places, 127 transitions, 879 flow. Second operand 4 states and 291 transitions. [2024-11-22 21:34:21,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 142 transitions, 1253 flow [2024-11-22 21:34:21,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 142 transitions, 1161 flow, removed 21 selfloop flow, removed 6 redundant places. [2024-11-22 21:34:21,400 INFO L231 Difference]: Finished difference. Result has 114 places, 126 transitions, 813 flow [2024-11-22 21:34:21,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=813, PETRI_PLACES=114, PETRI_TRANSITIONS=126} [2024-11-22 21:34:21,401 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -8 predicate places. [2024-11-22 21:34:21,401 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 126 transitions, 813 flow [2024-11-22 21:34:21,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:21,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:21,401 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:21,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (23)] Ended with exit code 0 [2024-11-22 21:34:21,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:21,602 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:21,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:21,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2143376831, now seen corresponding path program 1 times [2024-11-22 21:34:21,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:21,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299930844] [2024-11-22 21:34:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:21,603 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 [2024-11-22 21:34:21,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:21,604 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:21,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (24)] Waiting until timeout for monitored process [2024-11-22 21:34:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:21,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 21:34:21,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:21,899 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 11 treesize of output 9 [2024-11-22 21:34:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:21,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:21,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:21,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299930844] [2024-11-22 21:34:21,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299930844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:21,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:21,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 21:34:21,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315949335] [2024-11-22 21:34:21,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:21,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 21:34:21,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:21,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 21:34:21,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:34:22,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-22 21:34:22,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 126 transitions, 813 flow. Second operand has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:22,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:22,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-22 21:34:22,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:22,698 INFO L124 PetriNetUnfolderBase]: 689/1432 cut-off events. [2024-11-22 21:34:22,698 INFO L125 PetriNetUnfolderBase]: For 4953/4985 co-relation queries the response was YES. [2024-11-22 21:34:22,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5668 conditions, 1432 events. 689/1432 cut-off events. For 4953/4985 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8393 event pairs, 115 based on Foata normal form. 26/1430 useless extension candidates. Maximal degree in co-relation 5645. Up to 446 conditions per place. [2024-11-22 21:34:22,705 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 120 selfloop transitions, 58 changer transitions 0/208 dead transitions. [2024-11-22 21:34:22,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 208 transitions, 1727 flow [2024-11-22 21:34:22,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 21:34:22,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-22 21:34:22,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 955 transitions. [2024-11-22 21:34:22,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6029040404040404 [2024-11-22 21:34:22,706 INFO L175 Difference]: Start difference. First operand has 114 places, 126 transitions, 813 flow. Second operand 12 states and 955 transitions. [2024-11-22 21:34:22,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 208 transitions, 1727 flow [2024-11-22 21:34:22,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 208 transitions, 1699 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:22,716 INFO L231 Difference]: Finished difference. Result has 127 places, 148 transitions, 1232 flow [2024-11-22 21:34:22,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1232, PETRI_PLACES=127, PETRI_TRANSITIONS=148} [2024-11-22 21:34:22,717 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2024-11-22 21:34:22,717 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 148 transitions, 1232 flow [2024-11-22 21:34:22,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:22,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:22,717 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:22,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (24)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:22,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:22,918 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:22,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:22,918 INFO L85 PathProgramCache]: Analyzing trace with hash 746547989, now seen corresponding path program 2 times [2024-11-22 21:34:22,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:22,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173398334] [2024-11-22 21:34:22,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:34:22,919 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 [2024-11-22 21:34:22,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:22,920 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:22,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (25)] Waiting until timeout for monitored process [2024-11-22 21:34:23,179 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:34:23,179 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:23,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:34:23,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:23,197 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 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:23,203 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 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:23,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:23,395 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 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-22 21:34:23,401 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:34:23,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-22 21:34:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:23,419 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:23,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:23,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173398334] [2024-11-22 21:34:23,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173398334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:23,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:23,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:23,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592762795] [2024-11-22 21:34:23,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:23,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:34:23,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:23,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:34:23,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:34:23,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 132 [2024-11-22 21:34:23,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 148 transitions, 1232 flow. Second operand has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:23,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:23,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 132 [2024-11-22 21:34:23,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:23,981 INFO L124 PetriNetUnfolderBase]: 692/1412 cut-off events. [2024-11-22 21:34:23,981 INFO L125 PetriNetUnfolderBase]: For 7355/7388 co-relation queries the response was YES. [2024-11-22 21:34:23,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6197 conditions, 1412 events. 692/1412 cut-off events. For 7355/7388 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8217 event pairs, 233 based on Foata normal form. 8/1377 useless extension candidates. Maximal degree in co-relation 6169. Up to 716 conditions per place. [2024-11-22 21:34:23,986 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 85 selfloop transitions, 40 changer transitions 0/147 dead transitions. [2024-11-22 21:34:23,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 147 transitions, 1510 flow [2024-11-22 21:34:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:34:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:34:23,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2024-11-22 21:34:23,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2024-11-22 21:34:23,987 INFO L175 Difference]: Start difference. First operand has 127 places, 148 transitions, 1232 flow. Second operand 7 states and 448 transitions. [2024-11-22 21:34:23,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 147 transitions, 1510 flow [2024-11-22 21:34:23,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 147 transitions, 1387 flow, removed 37 selfloop flow, removed 5 redundant places. [2024-11-22 21:34:23,998 INFO L231 Difference]: Finished difference. Result has 122 places, 142 transitions, 1177 flow [2024-11-22 21:34:23,999 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1097, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1177, PETRI_PLACES=122, PETRI_TRANSITIONS=142} [2024-11-22 21:34:23,999 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 0 predicate places. [2024-11-22 21:34:23,999 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 142 transitions, 1177 flow [2024-11-22 21:34:23,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:23,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:23,999 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:24,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (25)] Ended with exit code 0 [2024-11-22 21:34:24,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:24,203 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:24,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:24,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1126018674, now seen corresponding path program 1 times [2024-11-22 21:34:24,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:24,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359073725] [2024-11-22 21:34:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:24,204 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 [2024-11-22 21:34:24,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:24,206 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:24,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (26)] Waiting until timeout for monitored process [2024-11-22 21:34:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:24,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 21:34:24,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:24,477 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 11 treesize of output 9 [2024-11-22 21:34:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:24,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:24,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:24,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359073725] [2024-11-22 21:34:24,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359073725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:24,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:24,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 21:34:24,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471117307] [2024-11-22 21:34:24,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:24,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 21:34:24,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:24,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 21:34:24,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:34:24,648 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-22 21:34:24,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 142 transitions, 1177 flow. Second operand has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:24,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:24,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-22 21:34:24,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:25,069 INFO L124 PetriNetUnfolderBase]: 629/1316 cut-off events. [2024-11-22 21:34:25,069 INFO L125 PetriNetUnfolderBase]: For 6411/6441 co-relation queries the response was YES. [2024-11-22 21:34:25,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5541 conditions, 1316 events. 629/1316 cut-off events. For 6411/6441 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 7443 event pairs, 119 based on Foata normal form. 32/1326 useless extension candidates. Maximal degree in co-relation 5515. Up to 673 conditions per place. [2024-11-22 21:34:25,075 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 91 selfloop transitions, 64 changer transitions 0/179 dead transitions. [2024-11-22 21:34:25,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 179 transitions, 1815 flow [2024-11-22 21:34:25,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 21:34:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 21:34:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 786 transitions. [2024-11-22 21:34:25,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2024-11-22 21:34:25,076 INFO L175 Difference]: Start difference. First operand has 122 places, 142 transitions, 1177 flow. Second operand 10 states and 786 transitions. [2024-11-22 21:34:25,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 179 transitions, 1815 flow [2024-11-22 21:34:25,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 179 transitions, 1727 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-22 21:34:25,088 INFO L231 Difference]: Finished difference. Result has 130 places, 154 transitions, 1494 flow [2024-11-22 21:34:25,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1494, PETRI_PLACES=130, PETRI_TRANSITIONS=154} [2024-11-22 21:34:25,089 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 8 predicate places. [2024-11-22 21:34:25,089 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 154 transitions, 1494 flow [2024-11-22 21:34:25,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:25,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:25,089 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:25,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (26)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:25,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:25,290 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:25,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:25,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1812717456, now seen corresponding path program 2 times [2024-11-22 21:34:25,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:25,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120926443] [2024-11-22 21:34:25,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:34:25,291 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 [2024-11-22 21:34:25,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:25,294 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:25,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (27)] Waiting until timeout for monitored process [2024-11-22 21:34:25,573 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:34:25,573 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:25,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-22 21:34:25,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:25,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:25,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:25,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:25,733 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:25,733 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:25,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-22 21:34:25,782 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:25,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 45 [2024-11-22 21:34:25,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:25,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 45 [2024-11-22 21:34:25,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:25,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:25,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:25,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120926443] [2024-11-22 21:34:25,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120926443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:25,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:25,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 21:34:25,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60679678] [2024-11-22 21:34:25,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:25,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 21:34:25,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:25,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 21:34:25,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 21:34:26,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-22 21:34:26,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 154 transitions, 1494 flow. Second operand has 9 states, 9 states have (on average 68.66666666666667) internal successors, (618), 9 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:26,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:26,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-22 21:34:26,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:27,582 INFO L124 PetriNetUnfolderBase]: 929/1872 cut-off events. [2024-11-22 21:34:27,582 INFO L125 PetriNetUnfolderBase]: For 9504/9504 co-relation queries the response was YES. [2024-11-22 21:34:27,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8094 conditions, 1872 events. 929/1872 cut-off events. For 9504/9504 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 11089 event pairs, 85 based on Foata normal form. 2/1870 useless extension candidates. Maximal degree in co-relation 8063. Up to 571 conditions per place. [2024-11-22 21:34:27,593 INFO L140 encePairwiseOnDemand]: 119/132 looper letters, 144 selfloop transitions, 75 changer transitions 0/236 dead transitions. [2024-11-22 21:34:27,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 236 transitions, 2579 flow [2024-11-22 21:34:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 21:34:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-22 21:34:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 826 transitions. [2024-11-22 21:34:27,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.568870523415978 [2024-11-22 21:34:27,595 INFO L175 Difference]: Start difference. First operand has 130 places, 154 transitions, 1494 flow. Second operand 11 states and 826 transitions. [2024-11-22 21:34:27,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 236 transitions, 2579 flow [2024-11-22 21:34:27,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 236 transitions, 2433 flow, removed 66 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:27,616 INFO L231 Difference]: Finished difference. Result has 141 places, 170 transitions, 1720 flow [2024-11-22 21:34:27,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1363, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1720, PETRI_PLACES=141, PETRI_TRANSITIONS=170} [2024-11-22 21:34:27,617 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 19 predicate places. [2024-11-22 21:34:27,617 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 170 transitions, 1720 flow [2024-11-22 21:34:27,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 68.66666666666667) internal successors, (618), 9 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:27,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:27,617 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:27,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (27)] Ended with exit code 0 [2024-11-22 21:34:27,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:27,818 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:27,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:27,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1286103472, now seen corresponding path program 3 times [2024-11-22 21:34:27,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:27,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481906278] [2024-11-22 21:34:27,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:34:27,819 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 [2024-11-22 21:34:27,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:27,820 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:27,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (28)] Waiting until timeout for monitored process [2024-11-22 21:34:28,076 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 21:34:28,076 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:28,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 21:34:28,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:28,172 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 11 treesize of output 9 [2024-11-22 21:34:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:28,183 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:28,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:28,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481906278] [2024-11-22 21:34:28,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481906278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:28,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:28,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 21:34:28,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175506313] [2024-11-22 21:34:28,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:28,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 21:34:28,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:28,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 21:34:28,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:34:28,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-22 21:34:28,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 170 transitions, 1720 flow. Second operand has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:28,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:28,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-22 21:34:28,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:29,031 INFO L124 PetriNetUnfolderBase]: 652/1424 cut-off events. [2024-11-22 21:34:29,031 INFO L125 PetriNetUnfolderBase]: For 8080/8113 co-relation queries the response was YES. [2024-11-22 21:34:29,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6541 conditions, 1424 events. 652/1424 cut-off events. For 8080/8113 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 8305 event pairs, 107 based on Foata normal form. 43/1431 useless extension candidates. Maximal degree in co-relation 6506. Up to 438 conditions per place. [2024-11-22 21:34:29,038 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 133 selfloop transitions, 89 changer transitions 0/250 dead transitions. [2024-11-22 21:34:29,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 250 transitions, 2567 flow [2024-11-22 21:34:29,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 21:34:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 21:34:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1193 transitions. [2024-11-22 21:34:29,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6025252525252526 [2024-11-22 21:34:29,040 INFO L175 Difference]: Start difference. First operand has 141 places, 170 transitions, 1720 flow. Second operand 15 states and 1193 transitions. [2024-11-22 21:34:29,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 250 transitions, 2567 flow [2024-11-22 21:34:29,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 250 transitions, 2465 flow, removed 25 selfloop flow, removed 5 redundant places. [2024-11-22 21:34:29,054 INFO L231 Difference]: Finished difference. Result has 157 places, 178 transitions, 1972 flow [2024-11-22 21:34:29,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1526, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1972, PETRI_PLACES=157, PETRI_TRANSITIONS=178} [2024-11-22 21:34:29,055 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 35 predicate places. [2024-11-22 21:34:29,055 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 178 transitions, 1972 flow [2024-11-22 21:34:29,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:29,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:29,055 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:29,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (28)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:29,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-22 21:34:29,256 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:29,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:29,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1193087418, now seen corresponding path program 4 times [2024-11-22 21:34:29,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:29,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635060197] [2024-11-22 21:34:29,257 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:34:29,257 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 [2024-11-22 21:34:29,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:29,258 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-22 21:34:29,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (29)] Waiting until timeout for monitored process [2024-11-22 21:34:29,600 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:34:29,601 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:29,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-22 21:34:29,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:29,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:29,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:29,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:29,782 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:29,782 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:29,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-22 21:34:29,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:29,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 75 [2024-11-22 21:34:31,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:31,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-22 21:34:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:31,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:31,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:31,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635060197] [2024-11-22 21:34:31,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635060197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:31,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:31,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 21:34:31,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741571778] [2024-11-22 21:34:31,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:31,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 21:34:31,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:31,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 21:34:31,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=69, Unknown=1, NotChecked=0, Total=90 [2024-11-22 21:34:33,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:35,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:37,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:38,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:40,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:42,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:44,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:46,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:47,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:49,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:51,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:53,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:55,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:56,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:59,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:01,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:03,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:05,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:06,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:08,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:10,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:12,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:14,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:15,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:17,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:19,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:19,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 132 [2024-11-22 21:35:19,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 178 transitions, 1972 flow. Second operand has 10 states, 10 states have (on average 41.7) internal successors, (417), 10 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:35:19,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:35:19,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 132 [2024-11-22 21:35:19,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:35:24,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]