./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.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 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:31:05,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:31:05,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:31:05,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:31:05,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:31:05,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:31:05,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:31:05,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:31:05,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:31:05,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:31:05,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:31:05,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:31:05,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:31:05,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:31:05,312 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:31:05,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:31:05,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:31:05,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:31:05,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:31:05,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:31:05,315 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:31:05,316 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:31:05,316 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:31:05,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:31:05,317 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:31:05,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:31:05,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:31:05,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:31:05,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:31:05,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:31:05,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:31:05,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:31:05,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:31:05,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:31:05,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:31:05,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:31:05,322 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:31:05,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:31:05,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:31:05,322 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:31:05,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:31:05,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:31:05,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-11-20 17:31:05,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:31:05,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:31:05,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:31:05,661 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:31:05,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:31:05,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-20 17:31:07,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:31:07,374 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:31:07,375 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-20 17:31:07,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022742c3a/1492d9b8918d45128eee9cab267f23b7/FLAGcbd3397e3 [2024-11-20 17:31:07,670 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022742c3a/1492d9b8918d45128eee9cab267f23b7 [2024-11-20 17:31:07,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:31:07,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:31:07,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:31:07,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:31:07,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:31:07,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:07" (1/1) ... [2024-11-20 17:31:07,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e24c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:07, skipping insertion in model container [2024-11-20 17:31:07,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:07" (1/1) ... [2024-11-20 17:31:07,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:31:08,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:31:08,251 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) [2024-11-20 17:31:08,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77b2dae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:08, skipping insertion in model container [2024-11-20 17:31:08,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:31:08,252 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-20 17:31:08,254 INFO L158 Benchmark]: Toolchain (without parser) took 580.15ms. Allocated memory is still 169.9MB. Free memory was 134.2MB in the beginning and 110.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-20 17:31:08,255 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:31:08,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.26ms. Allocated memory is still 169.9MB. Free memory was 134.2MB in the beginning and 110.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-20 17:31:08,257 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.26ms. Allocated memory is still 169.9MB. Free memory was 134.2MB in the beginning and 110.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.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 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:31:10,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:31:10,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-20 17:31:10,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:31:10,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:31:10,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:31:10,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:31:10,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:31:10,434 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:31:10,435 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:31:10,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:31:10,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:31:10,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:31:10,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:31:10,436 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:31:10,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:31:10,438 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:31:10,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:31:10,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:31:10,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:31:10,441 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:31:10,442 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:31:10,442 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:31:10,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:31:10,443 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:31:10,444 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 17:31:10,444 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:31:10,444 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 17:31:10,445 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:31:10,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:31:10,445 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:31:10,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:31:10,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:31:10,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:31:10,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:31:10,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:31:10,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:31:10,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:31:10,447 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 17:31:10,448 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 17:31:10,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:31:10,449 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:31:10,449 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:31:10,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:31:10,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-11-20 17:31:10,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:31:10,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:31:10,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:31:10,782 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:31:10,783 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:31:10,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-20 17:31:12,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:31:12,666 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:31:12,667 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-20 17:31:12,705 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308f0bbd7/0940b9ec565d41d287bcdbc4fff3f7ff/FLAG6c88f91e0 [2024-11-20 17:31:12,927 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308f0bbd7/0940b9ec565d41d287bcdbc4fff3f7ff [2024-11-20 17:31:12,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:31:12,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:31:12,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:31:12,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:31:12,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:31:12,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:12" (1/1) ... [2024-11-20 17:31:12,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb8b389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:12, skipping insertion in model container [2024-11-20 17:31:12,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:12" (1/1) ... [2024-11-20 17:31:13,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:31:13,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:31:13,532 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-20 17:31:13,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:31:13,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:31:13,599 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:31:13,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:31:13,697 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:31:13,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13 WrapperNode [2024-11-20 17:31:13,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:31:13,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:31:13,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:31:13,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:31:13,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,764 INFO L138 Inliner]: procedures = 249, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 143 [2024-11-20 17:31:13,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:31:13,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:31:13,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:31:13,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:31:13,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,806 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 2, 13]. 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, 2, 6]. [2024-11-20 17:31:13,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:31:13,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:31:13,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:31:13,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:31:13,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (1/1) ... [2024-11-20 17:31:13,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:31:13,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:31:13,894 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) [2024-11-20 17:31:13,897 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 [2024-11-20 17:31:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-20 17:31:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-20 17:31:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-20 17:31:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-20 17:31:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-20 17:31:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 17:31:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 17:31:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-20 17:31:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-20 17:31:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-20 17:31:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 17:31:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-20 17:31:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-20 17:31:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 17:31:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 17:31:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:31:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 17:31:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 17:31:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 17:31:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:31:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:31:13,952 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:31:14,276 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:31:14,278 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:31:14,763 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:31:14,763 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:31:14,898 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:31:14,900 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:31:14,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:14 BoogieIcfgContainer [2024-11-20 17:31:14,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:31:14,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:31:14,904 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:31:14,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:31:14,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:31:12" (1/3) ... [2024-11-20 17:31:14,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b00b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:31:14, skipping insertion in model container [2024-11-20 17:31:14,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:13" (2/3) ... [2024-11-20 17:31:14,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b00b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:31:14, skipping insertion in model container [2024-11-20 17:31:14,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:14" (3/3) ... [2024-11-20 17:31:14,911 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-11-20 17:31:14,927 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:31:14,927 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-11-20 17:31:14,927 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:31:15,004 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 17:31:15,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 132 transitions, 278 flow [2024-11-20 17:31:15,096 INFO L124 PetriNetUnfolderBase]: 18/165 cut-off events. [2024-11-20 17:31:15,096 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 17:31:15,100 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 528 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. [2024-11-20 17:31:15,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 132 transitions, 278 flow [2024-11-20 17:31:15,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 130 transitions, 272 flow [2024-11-20 17:31:15,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:31:15,121 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;@2ea8b503, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:31:15,121 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-20 17:31:15,127 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:31:15,127 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-20 17:31:15,127 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:31:15,128 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:15,128 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 17:31:15,129 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)] === [2024-11-20 17:31:15,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:15,134 INFO L85 PathProgramCache]: Analyzing trace with hash 495006, now seen corresponding path program 1 times [2024-11-20 17:31:15,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:15,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769832389] [2024-11-20 17:31:15,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:15,159 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 [2024-11-20 17:31:15,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:15,160 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) [2024-11-20 17:31:15,162 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 [2024-11-20 17:31:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:15,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:31:15,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:15,369 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 [2024-11-20 17:31:15,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:15,383 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:15,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:15,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769832389] [2024-11-20 17:31:15,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769832389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:15,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:15,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:31:15,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71656297] [2024-11-20 17:31:15,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:15,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:31:15,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:15,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:31:15,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:31:15,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-20 17:31:15,592 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) [2024-11-20 17:31:15,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:15,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-20 17:31:15,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:16,143 INFO L124 PetriNetUnfolderBase]: 707/2019 cut-off events. [2024-11-20 17:31:16,144 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-20 17:31:16,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3235 conditions, 2019 events. 707/2019 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15812 event pairs, 95 based on Foata normal form. 156/1873 useless extension candidates. Maximal degree in co-relation 3062. Up to 1002 conditions per place. [2024-11-20 17:31:16,165 INFO L140 encePairwiseOnDemand]: 114/132 looper letters, 54 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-11-20 17:31:16,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 118 transitions, 360 flow [2024-11-20 17:31:16,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:31:16,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:31:16,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-20 17:31:16,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-20 17:31:16,178 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 272 flow. Second operand 3 states and 264 transitions. [2024-11-20 17:31:16,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 118 transitions, 360 flow [2024-11-20 17:31:16,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 352 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:31:16,187 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-11-20 17:31:16,189 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} [2024-11-20 17:31:16,194 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -12 predicate places. [2024-11-20 17:31:16,194 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-11-20 17:31:16,195 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) [2024-11-20 17:31:16,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:16,195 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 17:31:16,202 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 [2024-11-20 17:31:16,396 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 [2024-11-20 17:31:16,397 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)] === [2024-11-20 17:31:16,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash 495007, now seen corresponding path program 1 times [2024-11-20 17:31:16,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:16,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400362666] [2024-11-20 17:31:16,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:16,399 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 [2024-11-20 17:31:16,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:16,400 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) [2024-11-20 17:31:16,402 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 [2024-11-20 17:31:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:16,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 17:31:16,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:16,540 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 [2024-11-20 17:31:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:16,551 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:16,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:16,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400362666] [2024-11-20 17:31:16,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400362666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:16,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:16,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:31:16,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48703018] [2024-11-20 17:31:16,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:16,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:31:16,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:16,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:31:16,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:31:16,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2024-11-20 17:31:16,733 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) [2024-11-20 17:31:16,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:16,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2024-11-20 17:31:16,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:17,133 INFO L124 PetriNetUnfolderBase]: 707/2015 cut-off events. [2024-11-20 17:31:17,135 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-20 17:31:17,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 2015 events. 707/2015 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15782 event pairs, 95 based on Foata normal form. 2/1715 useless extension candidates. Maximal degree in co-relation 479. Up to 1002 conditions per place. [2024-11-20 17:31:17,149 INFO L140 encePairwiseOnDemand]: 126/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-11-20 17:31:17,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 114 transitions, 344 flow [2024-11-20 17:31:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:31:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:31:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2024-11-20 17:31:17,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465 [2024-11-20 17:31:17,153 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 256 transitions. [2024-11-20 17:31:17,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 114 transitions, 344 flow [2024-11-20 17:31:17,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 114 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:31:17,160 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 216 flow [2024-11-20 17:31:17,162 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} [2024-11-20 17:31:17,162 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-20 17:31:17,163 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 216 flow [2024-11-20 17:31:17,163 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) [2024-11-20 17:31:17,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:17,163 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:31:17,170 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 (3)] Ended with exit code 0 [2024-11-20 17:31:17,367 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 [2024-11-20 17:31:17,368 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)] === [2024-11-20 17:31:17,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:17,369 INFO L85 PathProgramCache]: Analyzing trace with hash 15345152, now seen corresponding path program 1 times [2024-11-20 17:31:17,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:17,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23947869] [2024-11-20 17:31:17,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:17,370 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 [2024-11-20 17:31:17,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:17,373 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) [2024-11-20 17:31:17,374 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 [2024-11-20 17:31:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:17,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:31:17,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:17,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:17,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:17,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23947869] [2024-11-20 17:31:17,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23947869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:17,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:17,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:31:17,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660298873] [2024-11-20 17:31:17,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:17,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:31:17,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:17,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:31:17,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:31:17,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-20 17:31:17,470 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) [2024-11-20 17:31:17,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:17,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-20 17:31:17,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:17,768 INFO L124 PetriNetUnfolderBase]: 706/1746 cut-off events. [2024-11-20 17:31:17,768 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-20 17:31:17,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2983 conditions, 1746 events. 706/1746 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 12301 event pairs, 645 based on Foata normal form. 1/1476 useless extension candidates. Maximal degree in co-relation 883. Up to 1092 conditions per place. [2024-11-20 17:31:17,780 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-11-20 17:31:17,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 113 transitions, 342 flow [2024-11-20 17:31:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:31:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:31:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-20 17:31:17,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6616161616161617 [2024-11-20 17:31:17,787 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 216 flow. Second operand 3 states and 262 transitions. [2024-11-20 17:31:17,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 113 transitions, 342 flow [2024-11-20 17:31:17,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 113 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:31:17,793 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 214 flow [2024-11-20 17:31:17,794 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} [2024-11-20 17:31:17,795 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-20 17:31:17,795 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 214 flow [2024-11-20 17:31:17,796 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) [2024-11-20 17:31:17,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:17,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:31:17,802 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 [2024-11-20 17:31:17,997 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 [2024-11-20 17:31:17,997 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)] === [2024-11-20 17:31:17,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:17,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1320838570, now seen corresponding path program 1 times [2024-11-20 17:31:17,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:17,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217364107] [2024-11-20 17:31:17,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:17,999 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 [2024-11-20 17:31:17,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:18,002 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) [2024-11-20 17:31:18,003 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 [2024-11-20 17:31:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:18,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 17:31:18,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:18,172 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:18,173 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:18,173 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:18,177 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 [2024-11-20 17:31:18,226 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:18,227 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:18,227 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:18,249 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 17:31:18,250 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 73 treesize of output 93 [2024-11-20 17:31:18,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 17:31:18,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 157 treesize of output 61 [2024-11-20 17:31:18,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:18,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:18,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:18,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217364107] [2024-11-20 17:31:18,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217364107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:18,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:18,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:31:18,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704802457] [2024-11-20 17:31:18,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:18,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:31:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:31:18,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:31:18,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-20 17:31:18,847 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) [2024-11-20 17:31:18,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:18,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-20 17:31:18,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:19,644 INFO L124 PetriNetUnfolderBase]: 1153/2722 cut-off events. [2024-11-20 17:31:19,644 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-20 17:31:19,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4680 conditions, 2722 events. 1153/2722 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 20109 event pairs, 684 based on Foata normal form. 2/2374 useless extension candidates. Maximal degree in co-relation 4356. Up to 1845 conditions per place. [2024-11-20 17:31:19,662 INFO L140 encePairwiseOnDemand]: 121/132 looper letters, 49 selfloop transitions, 9 changer transitions 0/107 dead transitions. [2024-11-20 17:31:19,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 107 transitions, 339 flow [2024-11-20 17:31:19,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:31:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:31:19,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 380 transitions. [2024-11-20 17:31:19,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-11-20 17:31:19,665 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 214 flow. Second operand 5 states and 380 transitions. [2024-11-20 17:31:19,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 107 transitions, 339 flow [2024-11-20 17:31:19,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 107 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:31:19,673 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 236 flow [2024-11-20 17:31:19,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-11-20 17:31:19,674 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -19 predicate places. [2024-11-20 17:31:19,675 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 236 flow [2024-11-20 17:31:19,675 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) [2024-11-20 17:31:19,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:19,675 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:31:19,685 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 [2024-11-20 17:31:19,875 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 [2024-11-20 17:31:19,876 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:19,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:19,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1081930850, now seen corresponding path program 1 times [2024-11-20 17:31:19,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:19,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643414674] [2024-11-20 17:31:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:19,878 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 [2024-11-20 17:31:19,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:19,881 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) [2024-11-20 17:31:19,882 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 [2024-11-20 17:31:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:20,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:31:20,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:20,008 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 [2024-11-20 17:31:20,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:20,041 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:20,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:20,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643414674] [2024-11-20 17:31:20,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643414674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:20,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:20,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:31:20,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209787898] [2024-11-20 17:31:20,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:20,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:31:20,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:20,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:31:20,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:31:20,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2024-11-20 17:31:20,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 236 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) [2024-11-20 17:31:20,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:20,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2024-11-20 17:31:20,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:20,515 INFO L124 PetriNetUnfolderBase]: 954/2206 cut-off events. [2024-11-20 17:31:20,516 INFO L125 PetriNetUnfolderBase]: For 49/52 co-relation queries the response was YES. [2024-11-20 17:31:20,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3925 conditions, 2206 events. 954/2206 cut-off events. For 49/52 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 15292 event pairs, 736 based on Foata normal form. 0/2028 useless extension candidates. Maximal degree in co-relation 1642. Up to 1362 conditions per place. [2024-11-20 17:31:20,530 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 52 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-20 17:31:20,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 105 transitions, 358 flow [2024-11-20 17:31:20,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:31:20,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:31:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-11-20 17:31:20,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2024-11-20 17:31:20,532 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 236 flow. Second operand 3 states and 246 transitions. [2024-11-20 17:31:20,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 105 transitions, 358 flow [2024-11-20 17:31:20,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 105 transitions, 348 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:31:20,538 INFO L231 Difference]: Finished difference. Result has 97 places, 95 transitions, 224 flow [2024-11-20 17:31:20,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=95, 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=224, PETRI_PLACES=97, PETRI_TRANSITIONS=95} [2024-11-20 17:31:20,539 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -25 predicate places. [2024-11-20 17:31:20,539 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 224 flow [2024-11-20 17:31:20,539 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) [2024-11-20 17:31:20,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:20,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:31:20,547 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 [2024-11-20 17:31:20,741 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 [2024-11-20 17:31:20,741 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:20,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:20,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1081930849, now seen corresponding path program 1 times [2024-11-20 17:31:20,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:20,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379381497] [2024-11-20 17:31:20,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:20,743 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 [2024-11-20 17:31:20,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:20,746 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) [2024-11-20 17:31:20,748 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 [2024-11-20 17:31:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:20,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:31:20,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:20,889 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 [2024-11-20 17:31:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:20,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:20,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:20,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379381497] [2024-11-20 17:31:20,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379381497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:20,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:20,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:31:20,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363875278] [2024-11-20 17:31:20,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:20,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:31:20,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:20,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:31:20,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:31:21,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-20 17:31:21,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 224 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) [2024-11-20 17:31:21,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:21,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-20 17:31:21,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:21,431 INFO L124 PetriNetUnfolderBase]: 816/1953 cut-off events. [2024-11-20 17:31:21,431 INFO L125 PetriNetUnfolderBase]: For 87/90 co-relation queries the response was YES. [2024-11-20 17:31:21,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3485 conditions, 1953 events. 816/1953 cut-off events. For 87/90 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 13390 event pairs, 531 based on Foata normal form. 88/1857 useless extension candidates. Maximal degree in co-relation 2834. Up to 992 conditions per place. [2024-11-20 17:31:21,442 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 63 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-11-20 17:31:21,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 392 flow [2024-11-20 17:31:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:31:21,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:31:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2024-11-20 17:31:21,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-11-20 17:31:21,444 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 224 flow. Second operand 3 states and 261 transitions. [2024-11-20 17:31:21,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 392 flow [2024-11-20 17:31:21,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:31:21,447 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 237 flow [2024-11-20 17:31:21,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=95, 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=237, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2024-11-20 17:31:21,448 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -24 predicate places. [2024-11-20 17:31:21,448 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 237 flow [2024-11-20 17:31:21,448 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) [2024-11-20 17:31:21,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:21,448 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:31:21,455 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 (7)] Forceful destruction successful, exit code 0 [2024-11-20 17:31:21,649 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 [2024-11-20 17:31:21,650 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:21,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:21,650 INFO L85 PathProgramCache]: Analyzing trace with hash 899898881, now seen corresponding path program 1 times [2024-11-20 17:31:21,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:21,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184733800] [2024-11-20 17:31:21,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:21,652 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 [2024-11-20 17:31:21,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:21,655 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) [2024-11-20 17:31:21,656 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 [2024-11-20 17:31:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:21,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 17:31:21,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:21,792 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 [2024-11-20 17:31:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:21,841 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:21,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:21,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184733800] [2024-11-20 17:31:21,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184733800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:21,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:21,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:31:21,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466233440] [2024-11-20 17:31:21,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:21,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:31:21,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:21,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:31:21,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:31:22,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2024-11-20 17:31:22,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 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) [2024-11-20 17:31:22,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:22,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2024-11-20 17:31:22,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:22,870 INFO L124 PetriNetUnfolderBase]: 1177/2702 cut-off events. [2024-11-20 17:31:22,870 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2024-11-20 17:31:22,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5062 conditions, 2702 events. 1177/2702 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 19274 event pairs, 139 based on Foata normal form. 62/2644 useless extension candidates. Maximal degree in co-relation 3216. Up to 1078 conditions per place. [2024-11-20 17:31:22,890 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 102 selfloop transitions, 15 changer transitions 1/162 dead transitions. [2024-11-20 17:31:22,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 162 transitions, 628 flow [2024-11-20 17:31:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:31:22,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:31:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 594 transitions. [2024-11-20 17:31:22,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-11-20 17:31:22,893 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 237 flow. Second operand 8 states and 594 transitions. [2024-11-20 17:31:22,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 162 transitions, 628 flow [2024-11-20 17:31:22,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 162 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:31:22,899 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 341 flow [2024-11-20 17:31:22,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=97, 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=341, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2024-11-20 17:31:22,901 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -14 predicate places. [2024-11-20 17:31:22,901 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 341 flow [2024-11-20 17:31:22,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 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) [2024-11-20 17:31:22,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:22,902 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:31:22,909 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 [2024-11-20 17:31:23,103 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 [2024-11-20 17:31:23,104 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:23,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash 899898882, now seen corresponding path program 1 times [2024-11-20 17:31:23,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:23,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299705148] [2024-11-20 17:31:23,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:23,105 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 [2024-11-20 17:31:23,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:23,108 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) [2024-11-20 17:31:23,111 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 [2024-11-20 17:31:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:23,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 17:31:23,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:23,249 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 [2024-11-20 17:31:23,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:23,347 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:23,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:23,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299705148] [2024-11-20 17:31:23,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299705148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:23,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:23,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:31:23,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844534059] [2024-11-20 17:31:23,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:23,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:31:23,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:23,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:31:23,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:31:23,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2024-11-20 17:31:23,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 341 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) [2024-11-20 17:31:23,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:23,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2024-11-20 17:31:23,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:24,364 INFO L124 PetriNetUnfolderBase]: 910/2220 cut-off events. [2024-11-20 17:31:24,364 INFO L125 PetriNetUnfolderBase]: For 978/1064 co-relation queries the response was YES. [2024-11-20 17:31:24,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4479 conditions, 2220 events. 910/2220 cut-off events. For 978/1064 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 15779 event pairs, 154 based on Foata normal form. 257/2403 useless extension candidates. Maximal degree in co-relation 4083. Up to 1074 conditions per place. [2024-11-20 17:31:24,375 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 89 selfloop transitions, 12 changer transitions 2/154 dead transitions. [2024-11-20 17:31:24,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 154 transitions, 655 flow [2024-11-20 17:31:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:31:24,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:31:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 545 transitions. [2024-11-20 17:31:24,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5898268398268398 [2024-11-20 17:31:24,378 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 341 flow. Second operand 7 states and 545 transitions. [2024-11-20 17:31:24,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 154 transitions, 655 flow [2024-11-20 17:31:24,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 154 transitions, 655 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 17:31:24,386 INFO L231 Difference]: Finished difference. Result has 117 places, 108 transitions, 401 flow [2024-11-20 17:31:24,387 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=108, 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=401, PETRI_PLACES=117, PETRI_TRANSITIONS=108} [2024-11-20 17:31:24,387 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -5 predicate places. [2024-11-20 17:31:24,387 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 108 transitions, 401 flow [2024-11-20 17:31:24,388 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) [2024-11-20 17:31:24,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:24,388 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:31:24,396 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 [2024-11-20 17:31:24,588 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 [2024-11-20 17:31:24,589 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)] === [2024-11-20 17:31:24,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:24,589 INFO L85 PathProgramCache]: Analyzing trace with hash -60742247, now seen corresponding path program 1 times [2024-11-20 17:31:24,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:24,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244325856] [2024-11-20 17:31:24,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:24,590 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 [2024-11-20 17:31:24,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:24,591 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) [2024-11-20 17:31:24,592 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 [2024-11-20 17:31:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:24,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 17:31:24,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:24,725 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 [2024-11-20 17:31:24,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:24,830 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:24,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:24,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244325856] [2024-11-20 17:31:24,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244325856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:24,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:24,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:31:24,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355436765] [2024-11-20 17:31:24,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:24,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:31:24,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:24,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:31:24,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:31:25,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2024-11-20 17:31:25,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 108 transitions, 401 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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) [2024-11-20 17:31:25,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:25,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2024-11-20 17:31:25,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:25,843 INFO L124 PetriNetUnfolderBase]: 894/2266 cut-off events. [2024-11-20 17:31:25,843 INFO L125 PetriNetUnfolderBase]: For 1910/2000 co-relation queries the response was YES. [2024-11-20 17:31:25,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4878 conditions, 2266 events. 894/2266 cut-off events. For 1910/2000 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 16472 event pairs, 125 based on Foata normal form. 174/2382 useless extension candidates. Maximal degree in co-relation 4476. Up to 1036 conditions per place. [2024-11-20 17:31:25,851 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 92 selfloop transitions, 16 changer transitions 1/160 dead transitions. [2024-11-20 17:31:25,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 160 transitions, 802 flow [2024-11-20 17:31:25,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:31:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:31:25,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 542 transitions. [2024-11-20 17:31:25,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5865800865800865 [2024-11-20 17:31:25,854 INFO L175 Difference]: Start difference. First operand has 117 places, 108 transitions, 401 flow. Second operand 7 states and 542 transitions. [2024-11-20 17:31:25,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 160 transitions, 802 flow [2024-11-20 17:31:25,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 160 transitions, 781 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:31:25,860 INFO L231 Difference]: Finished difference. Result has 121 places, 115 transitions, 491 flow [2024-11-20 17:31:25,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=491, PETRI_PLACES=121, PETRI_TRANSITIONS=115} [2024-11-20 17:31:25,861 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -1 predicate places. [2024-11-20 17:31:25,861 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 115 transitions, 491 flow [2024-11-20 17:31:25,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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) [2024-11-20 17:31:25,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:25,862 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:31:25,867 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 [2024-11-20 17:31:26,062 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 [2024-11-20 17:31:26,063 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)] === [2024-11-20 17:31:26,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:26,063 INFO L85 PathProgramCache]: Analyzing trace with hash -60742248, now seen corresponding path program 1 times [2024-11-20 17:31:26,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:26,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296517445] [2024-11-20 17:31:26,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:26,064 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 [2024-11-20 17:31:26,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:26,065 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) [2024-11-20 17:31:26,068 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 [2024-11-20 17:31:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:26,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 17:31:26,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:26,190 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 [2024-11-20 17:31:26,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:26,230 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:26,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:26,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296517445] [2024-11-20 17:31:26,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296517445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:26,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:26,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:31:26,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261700502] [2024-11-20 17:31:26,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:26,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:31:26,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:26,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:31:26,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:31:26,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2024-11-20 17:31:26,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 115 transitions, 491 flow. Second operand has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 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) [2024-11-20 17:31:26,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:26,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2024-11-20 17:31:26,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:27,163 INFO L124 PetriNetUnfolderBase]: 1336/2918 cut-off events. [2024-11-20 17:31:27,164 INFO L125 PetriNetUnfolderBase]: For 3191/3346 co-relation queries the response was YES. [2024-11-20 17:31:27,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6893 conditions, 2918 events. 1336/2918 cut-off events. For 3191/3346 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 20396 event pairs, 350 based on Foata normal form. 100/2951 useless extension candidates. Maximal degree in co-relation 6072. Up to 1093 conditions per place. [2024-11-20 17:31:27,177 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 108 selfloop transitions, 21 changer transitions 0/175 dead transitions. [2024-11-20 17:31:27,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 175 transitions, 924 flow [2024-11-20 17:31:27,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:31:27,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:31:27,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 593 transitions. [2024-11-20 17:31:27,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5615530303030303 [2024-11-20 17:31:27,180 INFO L175 Difference]: Start difference. First operand has 121 places, 115 transitions, 491 flow. Second operand 8 states and 593 transitions. [2024-11-20 17:31:27,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 175 transitions, 924 flow [2024-11-20 17:31:27,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 175 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:31:27,189 INFO L231 Difference]: Finished difference. Result has 132 places, 121 transitions, 616 flow [2024-11-20 17:31:27,189 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=616, PETRI_PLACES=132, PETRI_TRANSITIONS=121} [2024-11-20 17:31:27,190 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2024-11-20 17:31:27,190 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 121 transitions, 616 flow [2024-11-20 17:31:27,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 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) [2024-11-20 17:31:27,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:27,191 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] [2024-11-20 17:31:27,197 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 [2024-11-20 17:31:27,391 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 [2024-11-20 17:31:27,392 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:27,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:27,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1770422097, now seen corresponding path program 1 times [2024-11-20 17:31:27,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:27,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116936816] [2024-11-20 17:31:27,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:27,394 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 [2024-11-20 17:31:27,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:27,397 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) [2024-11-20 17:31:27,398 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 [2024-11-20 17:31:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:27,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 17:31:27,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:27,589 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:27,589 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:27,590 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:27,593 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 [2024-11-20 17:31:27,630 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:27,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 17:31:27,638 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 83 treesize of output 73 [2024-11-20 17:31:27,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 17:31:27,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 57 [2024-11-20 17:31:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:27,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:27,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:27,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116936816] [2024-11-20 17:31:27,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116936816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:27,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:27,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:31:27,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716098754] [2024-11-20 17:31:27,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:27,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:31:27,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:27,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:31:27,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:31:27,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-20 17:31:27,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 121 transitions, 616 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) [2024-11-20 17:31:27,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:27,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-20 17:31:27,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:29,642 INFO L124 PetriNetUnfolderBase]: 1837/3730 cut-off events. [2024-11-20 17:31:29,643 INFO L125 PetriNetUnfolderBase]: For 6896/7188 co-relation queries the response was YES. [2024-11-20 17:31:29,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10073 conditions, 3730 events. 1837/3730 cut-off events. For 6896/7188 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 26572 event pairs, 747 based on Foata normal form. 126/3813 useless extension candidates. Maximal degree in co-relation 9207. Up to 2298 conditions per place. [2024-11-20 17:31:29,660 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 109 selfloop transitions, 23 changer transitions 0/178 dead transitions. [2024-11-20 17:31:29,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 178 transitions, 1127 flow [2024-11-20 17:31:29,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:31:29,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:31:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2024-11-20 17:31:29,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6174242424242424 [2024-11-20 17:31:29,663 INFO L175 Difference]: Start difference. First operand has 132 places, 121 transitions, 616 flow. Second operand 6 states and 489 transitions. [2024-11-20 17:31:29,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 178 transitions, 1127 flow [2024-11-20 17:31:29,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 178 transitions, 1114 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:31:29,675 INFO L231 Difference]: Finished difference. Result has 138 places, 144 transitions, 834 flow [2024-11-20 17:31:29,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=129, 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=834, PETRI_PLACES=138, PETRI_TRANSITIONS=144} [2024-11-20 17:31:29,676 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 16 predicate places. [2024-11-20 17:31:29,676 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 144 transitions, 834 flow [2024-11-20 17:31:29,677 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) [2024-11-20 17:31:29,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:29,677 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] [2024-11-20 17:31:29,686 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 [2024-11-20 17:31:29,877 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 [2024-11-20 17:31:29,878 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:29,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:29,878 INFO L85 PathProgramCache]: Analyzing trace with hash 925744658, now seen corresponding path program 1 times [2024-11-20 17:31:29,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:29,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217278298] [2024-11-20 17:31:29,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:29,879 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 [2024-11-20 17:31:29,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:29,881 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) [2024-11-20 17:31:29,882 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 [2024-11-20 17:31:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:30,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 17:31:30,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:30,043 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 [2024-11-20 17:31:30,047 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 [2024-11-20 17:31:30,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 17:31:30,208 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 [2024-11-20 17:31:30,217 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-20 17:31:30,217 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 [2024-11-20 17:31:30,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:30,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:30,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:30,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217278298] [2024-11-20 17:31:30,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217278298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:30,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:30,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:31:30,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332060219] [2024-11-20 17:31:30,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:30,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:31:30,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:30,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:31:30,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:31:30,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 132 [2024-11-20 17:31:30,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 144 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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) [2024-11-20 17:31:30,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:30,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 132 [2024-11-20 17:31:30,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:31,514 INFO L124 PetriNetUnfolderBase]: 2107/4457 cut-off events. [2024-11-20 17:31:31,514 INFO L125 PetriNetUnfolderBase]: For 9447/9725 co-relation queries the response was YES. [2024-11-20 17:31:31,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13302 conditions, 4457 events. 2107/4457 cut-off events. For 9447/9725 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 33906 event pairs, 424 based on Foata normal form. 71/4437 useless extension candidates. Maximal degree in co-relation 12193. Up to 1805 conditions per place. [2024-11-20 17:31:31,538 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 146 selfloop transitions, 24 changer transitions 0/220 dead transitions. [2024-11-20 17:31:31,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 220 transitions, 1463 flow [2024-11-20 17:31:31,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:31:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:31:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 618 transitions. [2024-11-20 17:31:31,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5202020202020202 [2024-11-20 17:31:31,542 INFO L175 Difference]: Start difference. First operand has 138 places, 144 transitions, 834 flow. Second operand 9 states and 618 transitions. [2024-11-20 17:31:31,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 220 transitions, 1463 flow [2024-11-20 17:31:31,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 220 transitions, 1434 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-20 17:31:31,563 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 853 flow [2024-11-20 17:31:31,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=133, 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=853, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2024-11-20 17:31:31,564 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 20 predicate places. [2024-11-20 17:31:31,564 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 853 flow [2024-11-20 17:31:31,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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) [2024-11-20 17:31:31,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:31,565 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] [2024-11-20 17:31:31,574 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 (13)] Ended with exit code 0 [2024-11-20 17:31:31,765 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 [2024-11-20 17:31:31,766 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)] === [2024-11-20 17:31:31,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:31,766 INFO L85 PathProgramCache]: Analyzing trace with hash 560549730, now seen corresponding path program 1 times [2024-11-20 17:31:31,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:31,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074053525] [2024-11-20 17:31:31,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:31,767 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 [2024-11-20 17:31:31,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:31,768 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) [2024-11-20 17:31:31,769 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 [2024-11-20 17:31:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:31,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 17:31:31,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:31,923 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 [2024-11-20 17:31:31,927 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 [2024-11-20 17:31:32,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 17:31:32,054 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 [2024-11-20 17:31:32,062 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-20 17:31:32,063 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 [2024-11-20 17:31:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:32,082 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:32,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:32,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074053525] [2024-11-20 17:31:32,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074053525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:32,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:32,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:31:32,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350353252] [2024-11-20 17:31:32,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:32,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:31:32,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:32,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:31:32,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:31:32,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 132 [2024-11-20 17:31:32,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 853 flow. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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) [2024-11-20 17:31:32,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:32,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 132 [2024-11-20 17:31:32,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:33,416 INFO L124 PetriNetUnfolderBase]: 2387/5014 cut-off events. [2024-11-20 17:31:33,417 INFO L125 PetriNetUnfolderBase]: For 12020/12358 co-relation queries the response was YES. [2024-11-20 17:31:33,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14996 conditions, 5014 events. 2387/5014 cut-off events. For 12020/12358 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 39261 event pairs, 748 based on Foata normal form. 89/5029 useless extension candidates. Maximal degree in co-relation 13913. Up to 1812 conditions per place. [2024-11-20 17:31:33,446 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 146 selfloop transitions, 24 changer transitions 0/218 dead transitions. [2024-11-20 17:31:33,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 218 transitions, 1491 flow [2024-11-20 17:31:33,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:31:33,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:31:33,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 618 transitions. [2024-11-20 17:31:33,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5202020202020202 [2024-11-20 17:31:33,450 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 853 flow. Second operand 9 states and 618 transitions. [2024-11-20 17:31:33,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 218 transitions, 1491 flow [2024-11-20 17:31:33,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 218 transitions, 1435 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-20 17:31:33,473 INFO L231 Difference]: Finished difference. Result has 140 places, 140 transitions, 851 flow [2024-11-20 17:31:33,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=131, 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=851, PETRI_PLACES=140, PETRI_TRANSITIONS=140} [2024-11-20 17:31:33,475 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-11-20 17:31:33,475 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 140 transitions, 851 flow [2024-11-20 17:31:33,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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) [2024-11-20 17:31:33,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:33,477 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] [2024-11-20 17:31:33,486 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 [2024-11-20 17:31:33,677 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 [2024-11-20 17:31:33,677 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:33,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:33,678 INFO L85 PathProgramCache]: Analyzing trace with hash 386742127, now seen corresponding path program 1 times [2024-11-20 17:31:33,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493906414] [2024-11-20 17:31:33,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:33,679 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 [2024-11-20 17:31:33,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:33,681 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) [2024-11-20 17:31:33,682 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 [2024-11-20 17:31:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:33,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 17:31:33,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:33,892 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:33,893 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:33,893 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:33,895 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 [2024-11-20 17:31:33,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 17:31:33,999 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 [2024-11-20 17:31:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:34,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:34,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:34,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493906414] [2024-11-20 17:31:34,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493906414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:34,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:34,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:31:34,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983381649] [2024-11-20 17:31:34,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:34,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:31:34,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:34,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:31:34,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:31:34,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-20 17:31:34,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 140 transitions, 851 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) [2024-11-20 17:31:34,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:34,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-20 17:31:34,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:35,450 INFO L124 PetriNetUnfolderBase]: 2542/5263 cut-off events. [2024-11-20 17:31:35,450 INFO L125 PetriNetUnfolderBase]: For 17229/17709 co-relation queries the response was YES. [2024-11-20 17:31:35,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16879 conditions, 5263 events. 2542/5263 cut-off events. For 17229/17709 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 41299 event pairs, 1223 based on Foata normal form. 202/5390 useless extension candidates. Maximal degree in co-relation 15428. Up to 3275 conditions per place. [2024-11-20 17:31:35,470 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 114 selfloop transitions, 35 changer transitions 0/190 dead transitions. [2024-11-20 17:31:35,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 190 transitions, 1473 flow [2024-11-20 17:31:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:31:35,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:31:35,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 416 transitions. [2024-11-20 17:31:35,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-20 17:31:35,472 INFO L175 Difference]: Start difference. First operand has 140 places, 140 transitions, 851 flow. Second operand 5 states and 416 transitions. [2024-11-20 17:31:35,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 190 transitions, 1473 flow [2024-11-20 17:31:35,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 190 transitions, 1422 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-20 17:31:35,510 INFO L231 Difference]: Finished difference. Result has 141 places, 159 transitions, 1140 flow [2024-11-20 17:31:35,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=134, 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=1140, PETRI_PLACES=141, PETRI_TRANSITIONS=159} [2024-11-20 17:31:35,511 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 19 predicate places. [2024-11-20 17:31:35,511 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 159 transitions, 1140 flow [2024-11-20 17:31:35,512 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) [2024-11-20 17:31:35,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:35,512 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] [2024-11-20 17:31:35,521 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 [2024-11-20 17:31:35,712 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 [2024-11-20 17:31:35,713 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:35,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:35,713 INFO L85 PathProgramCache]: Analyzing trace with hash -896002718, now seen corresponding path program 1 times [2024-11-20 17:31:35,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:35,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800720915] [2024-11-20 17:31:35,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:35,714 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 [2024-11-20 17:31:35,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:35,715 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) [2024-11-20 17:31:35,716 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 [2024-11-20 17:31:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:35,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 17:31:35,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:36,004 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_81| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_81| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_81|)))) is different from true [2024-11-20 17:31:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:36,016 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:36,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:36,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800720915] [2024-11-20 17:31:36,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800720915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:36,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:36,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:31:36,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133592179] [2024-11-20 17:31:36,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:36,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:31:36,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:36,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:31:36,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-20 17:31:36,019 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 132 [2024-11-20 17:31:36,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 159 transitions, 1140 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) [2024-11-20 17:31:36,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:36,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 132 [2024-11-20 17:31:36,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:37,390 INFO L124 PetriNetUnfolderBase]: 4002/7517 cut-off events. [2024-11-20 17:31:37,390 INFO L125 PetriNetUnfolderBase]: For 24649/24653 co-relation queries the response was YES. [2024-11-20 17:31:37,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26878 conditions, 7517 events. 4002/7517 cut-off events. For 24649/24653 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 57397 event pairs, 1765 based on Foata normal form. 1/7495 useless extension candidates. Maximal degree in co-relation 24791. Up to 3488 conditions per place. [2024-11-20 17:31:37,440 INFO L140 encePairwiseOnDemand]: 106/132 looper letters, 145 selfloop transitions, 40 changer transitions 4/209 dead transitions. [2024-11-20 17:31:37,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 209 transitions, 1787 flow [2024-11-20 17:31:37,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:31:37,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:31:37,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 310 transitions. [2024-11-20 17:31:37,442 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2024-11-20 17:31:37,442 INFO L175 Difference]: Start difference. First operand has 141 places, 159 transitions, 1140 flow. Second operand 5 states and 310 transitions. [2024-11-20 17:31:37,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 209 transitions, 1787 flow [2024-11-20 17:31:37,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 209 transitions, 1773 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-20 17:31:37,514 INFO L231 Difference]: Finished difference. Result has 148 places, 177 transitions, 1421 flow [2024-11-20 17:31:37,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=141, 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=1421, PETRI_PLACES=148, PETRI_TRANSITIONS=177} [2024-11-20 17:31:37,515 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 26 predicate places. [2024-11-20 17:31:37,515 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 177 transitions, 1421 flow [2024-11-20 17:31:37,515 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) [2024-11-20 17:31:37,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:37,516 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] [2024-11-20 17:31:37,525 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 (16)] Forceful destruction successful, exit code 0 [2024-11-20 17:31:37,716 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 [2024-11-20 17:31:37,716 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:37,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:37,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1625776092, now seen corresponding path program 1 times [2024-11-20 17:31:37,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:37,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083818230] [2024-11-20 17:31:37,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:37,718 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 [2024-11-20 17:31:37,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:37,719 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) [2024-11-20 17:31:37,721 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 [2024-11-20 17:31:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:37,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:31:37,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:37,904 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 [2024-11-20 17:31:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:37,916 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:37,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:37,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083818230] [2024-11-20 17:31:37,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083818230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:37,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:37,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:31:37,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185495082] [2024-11-20 17:31:37,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:37,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:31:37,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:37,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:31:37,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:31:38,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-20 17:31:38,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 177 transitions, 1421 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) [2024-11-20 17:31:38,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:38,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-20 17:31:38,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:38,783 INFO L124 PetriNetUnfolderBase]: 2778/5523 cut-off events. [2024-11-20 17:31:38,783 INFO L125 PetriNetUnfolderBase]: For 27318/27748 co-relation queries the response was YES. [2024-11-20 17:31:38,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22888 conditions, 5523 events. 2778/5523 cut-off events. For 27318/27748 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 43037 event pairs, 1433 based on Foata normal form. 88/5424 useless extension candidates. Maximal degree in co-relation 21366. Up to 3825 conditions per place. [2024-11-20 17:31:38,808 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/183 dead transitions. [2024-11-20 17:31:38,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 183 transitions, 1677 flow [2024-11-20 17:31:38,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:31:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:31:38,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-20 17:31:38,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-11-20 17:31:38,810 INFO L175 Difference]: Start difference. First operand has 148 places, 177 transitions, 1421 flow. Second operand 3 states and 257 transitions. [2024-11-20 17:31:38,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 183 transitions, 1677 flow [2024-11-20 17:31:38,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 183 transitions, 1589 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-20 17:31:38,858 INFO L231 Difference]: Finished difference. Result has 144 places, 175 transitions, 1339 flow [2024-11-20 17:31:38,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1329, PETRI_DIFFERENCE_MINUEND_PLACES=142, 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=1339, PETRI_PLACES=144, PETRI_TRANSITIONS=175} [2024-11-20 17:31:38,859 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 22 predicate places. [2024-11-20 17:31:38,859 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 175 transitions, 1339 flow [2024-11-20 17:31:38,860 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) [2024-11-20 17:31:38,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:38,860 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] [2024-11-20 17:31:38,867 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 [2024-11-20 17:31:39,060 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 [2024-11-20 17:31:39,060 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:39,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:39,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1330151493, now seen corresponding path program 1 times [2024-11-20 17:31:39,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:39,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229748055] [2024-11-20 17:31:39,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:39,062 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 [2024-11-20 17:31:39,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:39,063 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) [2024-11-20 17:31:39,064 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 [2024-11-20 17:31:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:39,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:31:39,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:39,218 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 [2024-11-20 17:31:39,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:39,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:39,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:39,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229748055] [2024-11-20 17:31:39,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229748055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:39,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:39,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:31:39,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237562567] [2024-11-20 17:31:39,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:39,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:31:39,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:39,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:31:39,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:31:39,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-20 17:31:39,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 175 transitions, 1339 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) [2024-11-20 17:31:39,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:39,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-20 17:31:39,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:40,089 INFO L124 PetriNetUnfolderBase]: 2778/5515 cut-off events. [2024-11-20 17:31:40,089 INFO L125 PetriNetUnfolderBase]: For 24731/25161 co-relation queries the response was YES. [2024-11-20 17:31:40,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22494 conditions, 5515 events. 2778/5515 cut-off events. For 24731/25161 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 42879 event pairs, 1433 based on Foata normal form. 88/5416 useless extension candidates. Maximal degree in co-relation 21822. Up to 3825 conditions per place. [2024-11-20 17:31:40,129 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-11-20 17:31:40,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 181 transitions, 1595 flow [2024-11-20 17:31:40,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:31:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:31:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-20 17:31:40,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-11-20 17:31:40,131 INFO L175 Difference]: Start difference. First operand has 144 places, 175 transitions, 1339 flow. Second operand 3 states and 257 transitions. [2024-11-20 17:31:40,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 181 transitions, 1595 flow [2024-11-20 17:31:40,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 181 transitions, 1585 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:31:40,189 INFO L231 Difference]: Finished difference. Result has 142 places, 173 transitions, 1335 flow [2024-11-20 17:31:40,189 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1325, PETRI_DIFFERENCE_MINUEND_PLACES=140, 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=1335, PETRI_PLACES=142, PETRI_TRANSITIONS=173} [2024-11-20 17:31:40,190 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 20 predicate places. [2024-11-20 17:31:40,190 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 173 transitions, 1335 flow [2024-11-20 17:31:40,190 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) [2024-11-20 17:31:40,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:40,191 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] [2024-11-20 17:31:40,198 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 (18)] Forceful destruction successful, exit code 0 [2024-11-20 17:31:40,391 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 [2024-11-20 17:31:40,391 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:40,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:40,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1245600125, now seen corresponding path program 1 times [2024-11-20 17:31:40,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:40,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299260690] [2024-11-20 17:31:40,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:40,392 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 [2024-11-20 17:31:40,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:40,394 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) [2024-11-20 17:31:40,395 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 [2024-11-20 17:31:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:40,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:31:40,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:40,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:40,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:40,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:40,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299260690] [2024-11-20 17:31:40,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299260690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:40,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:40,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:31:40,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251796494] [2024-11-20 17:31:40,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:40,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:31:40,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:40,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:31:40,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:31:40,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-20 17:31:40,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 173 transitions, 1335 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) [2024-11-20 17:31:40,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:40,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-20 17:31:40,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:40,798 INFO L124 PetriNetUnfolderBase]: 266/537 cut-off events. [2024-11-20 17:31:40,798 INFO L125 PetriNetUnfolderBase]: For 2024/2077 co-relation queries the response was YES. [2024-11-20 17:31:40,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2217 conditions, 537 events. 266/537 cut-off events. For 2024/2077 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2117 event pairs, 50 based on Foata normal form. 50/567 useless extension candidates. Maximal degree in co-relation 2188. Up to 269 conditions per place. [2024-11-20 17:31:40,801 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 60 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2024-11-20 17:31:40,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 100 transitions, 679 flow [2024-11-20 17:31:40,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:31:40,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:31:40,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2024-11-20 17:31:40,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.634469696969697 [2024-11-20 17:31:40,803 INFO L175 Difference]: Start difference. First operand has 142 places, 173 transitions, 1335 flow. Second operand 4 states and 335 transitions. [2024-11-20 17:31:40,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 100 transitions, 679 flow [2024-11-20 17:31:40,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 100 transitions, 494 flow, removed 33 selfloop flow, removed 31 redundant places. [2024-11-20 17:31:40,807 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 302 flow [2024-11-20 17:31:40,808 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=91, 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=302, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2024-11-20 17:31:40,808 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -28 predicate places. [2024-11-20 17:31:40,808 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 302 flow [2024-11-20 17:31:40,808 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) [2024-11-20 17:31:40,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:40,809 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] [2024-11-20 17:31:40,815 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 [2024-11-20 17:31:41,009 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 [2024-11-20 17:31:41,009 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:41,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:41,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1280331149, now seen corresponding path program 1 times [2024-11-20 17:31:41,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:41,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542763946] [2024-11-20 17:31:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:41,011 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 [2024-11-20 17:31:41,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:41,012 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) [2024-11-20 17:31:41,013 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 [2024-11-20 17:31:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:41,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 17:31:41,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:41,294 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 [2024-11-20 17:31:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:41,343 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:41,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:41,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542763946] [2024-11-20 17:31:41,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542763946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:41,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:41,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:31:41,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262870637] [2024-11-20 17:31:41,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:41,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:31:41,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:31:41,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:31:41,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-20 17:31:41,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 302 flow. Second operand has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 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) [2024-11-20 17:31:41,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:41,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-20 17:31:41,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:41,908 INFO L124 PetriNetUnfolderBase]: 294/621 cut-off events. [2024-11-20 17:31:41,908 INFO L125 PetriNetUnfolderBase]: For 884/890 co-relation queries the response was YES. [2024-11-20 17:31:41,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1860 conditions, 621 events. 294/621 cut-off events. For 884/890 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2743 event pairs, 28 based on Foata normal form. 15/626 useless extension candidates. Maximal degree in co-relation 1848. Up to 192 conditions per place. [2024-11-20 17:31:41,910 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 76 selfloop transitions, 29 changer transitions 0/136 dead transitions. [2024-11-20 17:31:41,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 136 transitions, 758 flow [2024-11-20 17:31:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 17:31:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 17:31:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 861 transitions. [2024-11-20 17:31:41,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5929752066115702 [2024-11-20 17:31:41,912 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 302 flow. Second operand 11 states and 861 transitions. [2024-11-20 17:31:41,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 136 transitions, 758 flow [2024-11-20 17:31:41,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 136 transitions, 722 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:31:41,916 INFO L231 Difference]: Finished difference. Result has 105 places, 99 transitions, 476 flow [2024-11-20 17:31:41,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=476, PETRI_PLACES=105, PETRI_TRANSITIONS=99} [2024-11-20 17:31:41,916 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -17 predicate places. [2024-11-20 17:31:41,916 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 99 transitions, 476 flow [2024-11-20 17:31:41,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 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) [2024-11-20 17:31:41,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:41,917 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] [2024-11-20 17:31:41,925 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 [2024-11-20 17:31:42,117 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 [2024-11-20 17:31:42,118 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:42,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:42,118 INFO L85 PathProgramCache]: Analyzing trace with hash 612056559, now seen corresponding path program 2 times [2024-11-20 17:31:42,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:42,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885504748] [2024-11-20 17:31:42,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 17:31:42,119 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 [2024-11-20 17:31:42,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:42,120 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) [2024-11-20 17:31:42,121 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 [2024-11-20 17:31:42,339 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 17:31:42,340 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:31:42,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 17:31:42,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:42,392 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 [2024-11-20 17:31:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:42,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:42,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:42,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885504748] [2024-11-20 17:31:42,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885504748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:42,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:42,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:31:42,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192623899] [2024-11-20 17:31:42,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:42,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:31:42,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:42,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:31:42,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:31:42,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-20 17:31:42,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 99 transitions, 476 flow. Second operand has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 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) [2024-11-20 17:31:42,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:42,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-20 17:31:42,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:43,102 INFO L124 PetriNetUnfolderBase]: 328/700 cut-off events. [2024-11-20 17:31:43,102 INFO L125 PetriNetUnfolderBase]: For 1623/1642 co-relation queries the response was YES. [2024-11-20 17:31:43,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 700 events. 328/700 cut-off events. For 1623/1642 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3242 event pairs, 44 based on Foata normal form. 18/707 useless extension candidates. Maximal degree in co-relation 2368. Up to 219 conditions per place. [2024-11-20 17:31:43,106 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 80 selfloop transitions, 42 changer transitions 0/153 dead transitions. [2024-11-20 17:31:43,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 153 transitions, 1039 flow [2024-11-20 17:31:43,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 17:31:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 17:31:43,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 861 transitions. [2024-11-20 17:31:43,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5929752066115702 [2024-11-20 17:31:43,108 INFO L175 Difference]: Start difference. First operand has 105 places, 99 transitions, 476 flow. Second operand 11 states and 861 transitions. [2024-11-20 17:31:43,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 153 transitions, 1039 flow [2024-11-20 17:31:43,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 153 transitions, 993 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-20 17:31:43,115 INFO L231 Difference]: Finished difference. Result has 114 places, 118 transitions, 731 flow [2024-11-20 17:31:43,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=731, PETRI_PLACES=114, PETRI_TRANSITIONS=118} [2024-11-20 17:31:43,116 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -8 predicate places. [2024-11-20 17:31:43,116 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 118 transitions, 731 flow [2024-11-20 17:31:43,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 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) [2024-11-20 17:31:43,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:43,117 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] [2024-11-20 17:31:43,127 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 (21)] Ended with exit code 0 [2024-11-20 17:31:43,317 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 [2024-11-20 17:31:43,318 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:43,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:43,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1818691607, now seen corresponding path program 3 times [2024-11-20 17:31:43,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:43,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612881148] [2024-11-20 17:31:43,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 17:31:43,319 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 [2024-11-20 17:31:43,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:43,320 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) [2024-11-20 17:31:43,321 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 [2024-11-20 17:31:43,590 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-20 17:31:43,590 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:31:43,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 17:31:43,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:43,607 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 [2024-11-20 17:31:43,611 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 [2024-11-20 17:31:43,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 17:31:43,849 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 [2024-11-20 17:31:43,861 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-20 17:31:43,861 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 [2024-11-20 17:31:43,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:43,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:43,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:43,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612881148] [2024-11-20 17:31:43,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612881148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:43,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:43,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:31:43,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601513110] [2024-11-20 17:31:43,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:43,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:31:43,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:31:43,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:31:44,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 132 [2024-11-20 17:31:44,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 118 transitions, 731 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2024-11-20 17:31:44,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:44,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 132 [2024-11-20 17:31:44,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:44,187 INFO L124 PetriNetUnfolderBase]: 327/681 cut-off events. [2024-11-20 17:31:44,187 INFO L125 PetriNetUnfolderBase]: For 2147/2173 co-relation queries the response was YES. [2024-11-20 17:31:44,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2664 conditions, 681 events. 327/681 cut-off events. For 2147/2173 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3121 event pairs, 196 based on Foata normal form. 7/666 useless extension candidates. Maximal degree in co-relation 2644. Up to 594 conditions per place. [2024-11-20 17:31:44,190 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 86 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2024-11-20 17:31:44,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 112 transitions, 899 flow [2024-11-20 17:31:44,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:31:44,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:31:44,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 271 transitions. [2024-11-20 17:31:44,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5132575757575758 [2024-11-20 17:31:44,191 INFO L175 Difference]: Start difference. First operand has 114 places, 118 transitions, 731 flow. Second operand 4 states and 271 transitions. [2024-11-20 17:31:44,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 112 transitions, 899 flow [2024-11-20 17:31:44,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 112 transitions, 837 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-20 17:31:44,197 INFO L231 Difference]: Finished difference. Result has 106 places, 112 transitions, 665 flow [2024-11-20 17:31:44,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=665, PETRI_PLACES=106, PETRI_TRANSITIONS=112} [2024-11-20 17:31:44,198 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-20 17:31:44,198 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 112 transitions, 665 flow [2024-11-20 17:31:44,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2024-11-20 17:31:44,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:44,198 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] [2024-11-20 17:31:44,207 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 [2024-11-20 17:31:44,399 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 [2024-11-20 17:31:44,399 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)] === [2024-11-20 17:31:44,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:44,399 INFO L85 PathProgramCache]: Analyzing trace with hash 616098376, now seen corresponding path program 1 times [2024-11-20 17:31:44,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:44,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740388229] [2024-11-20 17:31:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:44,400 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 [2024-11-20 17:31:44,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:44,401 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) [2024-11-20 17:31:44,403 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 [2024-11-20 17:31:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:44,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 17:31:44,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:44,721 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 [2024-11-20 17:31:44,782 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-20 17:31:44,782 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 [2024-11-20 17:31:44,813 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 [2024-11-20 17:31:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:44,815 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:44,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:44,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740388229] [2024-11-20 17:31:44,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740388229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:44,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:44,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:31:44,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684643931] [2024-11-20 17:31:44,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:44,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:31:44,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:44,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:31:44,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:31:44,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 132 [2024-11-20 17:31:44,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 112 transitions, 665 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) [2024-11-20 17:31:44,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:31:44,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 132 [2024-11-20 17:31:44,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:31:45,111 INFO L124 PetriNetUnfolderBase]: 327/680 cut-off events. [2024-11-20 17:31:45,111 INFO L125 PetriNetUnfolderBase]: For 1579/1605 co-relation queries the response was YES. [2024-11-20 17:31:45,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2577 conditions, 680 events. 327/680 cut-off events. For 1579/1605 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3197 event pairs, 137 based on Foata normal form. 7/667 useless extension candidates. Maximal degree in co-relation 2557. Up to 407 conditions per place. [2024-11-20 17:31:45,114 INFO L140 encePairwiseOnDemand]: 127/132 looper letters, 96 selfloop transitions, 7 changer transitions 0/125 dead transitions. [2024-11-20 17:31:45,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 125 transitions, 965 flow [2024-11-20 17:31:45,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:31:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:31:45,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 291 transitions. [2024-11-20 17:31:45,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5511363636363636 [2024-11-20 17:31:45,115 INFO L175 Difference]: Start difference. First operand has 106 places, 112 transitions, 665 flow. Second operand 4 states and 291 transitions. [2024-11-20 17:31:45,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 125 transitions, 965 flow [2024-11-20 17:31:45,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 125 transitions, 957 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:31:45,121 INFO L231 Difference]: Finished difference. Result has 105 places, 111 transitions, 669 flow [2024-11-20 17:31:45,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=669, PETRI_PLACES=105, PETRI_TRANSITIONS=111} [2024-11-20 17:31:45,122 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -17 predicate places. [2024-11-20 17:31:45,122 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 111 transitions, 669 flow [2024-11-20 17:31:45,122 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) [2024-11-20 17:31:45,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:31:45,122 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] [2024-11-20 17:31:45,132 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 (23)] Forceful destruction successful, exit code 0 [2024-11-20 17:31:45,323 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 [2024-11-20 17:31:45,323 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-20 17:31:45,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:31:45,323 INFO L85 PathProgramCache]: Analyzing trace with hash -125265219, now seen corresponding path program 1 times [2024-11-20 17:31:45,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:31:45,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763119688] [2024-11-20 17:31:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:31:45,324 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 [2024-11-20 17:31:45,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:31:45,327 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) [2024-11-20 17:31:45,328 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 [2024-11-20 17:31:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:31:45,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 17:31:45,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:31:45,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 17:31:45,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 17:31:45,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 17:31:45,851 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:45,852 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:31:45,853 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 [2024-11-20 17:31:45,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 17:31:45,940 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 [2024-11-20 17:31:47,841 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 17:31:47,842 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 [2024-11-20 17:31:47,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:31:47,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:31:47,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:31:47,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763119688] [2024-11-20 17:31:47,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763119688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:31:47,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:31:47,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 17:31:47,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740084588] [2024-11-20 17:31:47,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:31:47,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 17:31:47,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:31:47,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 17:31:47,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=41, Unknown=1, NotChecked=0, Total=56 [2024-11-20 17:31:49,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:31:51,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:31:53,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:31:55,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:31:57,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:31:59,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:01,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:03,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:04,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:06,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:08,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:10,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:12,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:14,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:16,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:18,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:19,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:21,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:23,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:25,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:27,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:29,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:31,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:32,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:34,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:36,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:38,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-20 17:32:40,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]