./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-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-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:34:02,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:34:02,333 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:34:02,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:34:02,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:34:02,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:34:02,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:34:02,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:34:02,364 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:34:02,367 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:34:02,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:34:02,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:34:02,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:34:02,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:34:02,369 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:34:02,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:34:02,369 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:34:02,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:34:02,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:34:02,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:34:02,370 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:34:02,372 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:34:02,372 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:34:02,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:34:02,373 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:34:02,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:34:02,373 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:34:02,374 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:34:02,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:34:02,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:34:02,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:34:02,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:34:02,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:34:02,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:34:02,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:34:02,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:34:02,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:34:02,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:34:02,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:34:02,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:34:02,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:34:02,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:34:02,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-11-22 21:34:02,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:34:02,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:34:02,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:34:02,635 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:34:02,636 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:34:02,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-22 21:34:04,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:34:04,413 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:34:04,414 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-22 21:34:04,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c1e8351/9621f0201e9145e0a286d01ad3276d76/FLAGdec324103 [2024-11-22 21:34:04,480 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c1e8351/9621f0201e9145e0a286d01ad3276d76 [2024-11-22 21:34:04,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:34:04,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:34:04,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:04,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:34:04,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:34:04,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:04" (1/1) ... [2024-11-22 21:34:04,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3abface8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:04, skipping insertion in model container [2024-11-22 21:34:04,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:04" (1/1) ... [2024-11-22 21:34:04,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:34:05,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:05,025 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-22 21:34:05,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76e84fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:05, skipping insertion in model container [2024-11-22 21:34:05,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:05,027 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-22 21:34:05,029 INFO L158 Benchmark]: Toolchain (without parser) took 542.09ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 77.5MB in the beginning and 162.5MB in the end (delta: -85.0MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-11-22 21:34:05,029 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:34:05,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.43ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 77.4MB in the beginning and 162.5MB in the end (delta: -85.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-11-22 21:34:05,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.43ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 77.4MB in the beginning and 162.5MB in the end (delta: -85.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3902]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-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-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:34:07,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:34:07,133 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-22 21:34:07,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:34:07,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:34:07,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:34:07,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:34:07,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:34:07,172 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:34:07,172 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:34:07,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:34:07,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:34:07,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:34:07,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:34:07,177 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:34:07,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:34:07,178 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:34:07,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:34:07,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:34:07,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:34:07,179 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:34:07,181 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:34:07,181 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:34:07,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:34:07,181 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:34:07,182 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-22 21:34:07,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:34:07,182 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-22 21:34:07,182 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:34:07,183 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:34:07,183 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:34:07,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:34:07,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:34:07,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:34:07,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:34:07,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:34:07,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:34:07,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:34:07,186 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-22 21:34:07,186 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-22 21:34:07,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:34:07,187 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:34:07,187 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:34:07,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:34:07,188 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-11-22 21:34:07,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:34:07,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:34:07,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:34:07,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:34:07,574 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:34:07,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-22 21:34:09,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:34:09,357 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:34:09,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-22 21:34:09,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe1a6c8d/432524bb3096485f8eea8424268b0149/FLAGb971a8073 [2024-11-22 21:34:09,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe1a6c8d/432524bb3096485f8eea8424268b0149 [2024-11-22 21:34:09,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:34:09,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:34:09,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:09,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:34:09,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:34:09,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:09" (1/1) ... [2024-11-22 21:34:09,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60aa6e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:09, skipping insertion in model container [2024-11-22 21:34:09,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:09" (1/1) ... [2024-11-22 21:34:09,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:34:10,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:10,088 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-22 21:34:10,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:34:10,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:10,164 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:34:10,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:10,301 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:34:10,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10 WrapperNode [2024-11-22 21:34:10,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:10,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:34:10,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:34:10,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:34:10,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,367 INFO L138 Inliner]: procedures = 249, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 143 [2024-11-22 21:34:10,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:34:10,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:34:10,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:34:10,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:34:10,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,398 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,423 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]. [2024-11-22 21:34:10,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:34:10,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:34:10,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:34:10,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:34:10,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:34:10,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:34:10,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 21:34:10,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 21:34:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-22 21:34:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-22 21:34:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-22 21:34:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-22 21:34:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-22 21:34:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 21:34:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 21:34:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-22 21:34:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-22 21:34:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-22 21:34:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-22 21:34:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-22 21:34:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-22 21:34:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 21:34:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 21:34:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:34:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 21:34:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 21:34:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 21:34:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:34:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:34:10,577 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:34:10,915 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:34:10,917 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:34:11,427 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:34:11,427 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:34:11,580 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:34:11,581 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 21:34:11,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:11 BoogieIcfgContainer [2024-11-22 21:34:11,581 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:34:11,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:34:11,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:34:11,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:34:11,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:34:09" (1/3) ... [2024-11-22 21:34:11,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386916e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:11, skipping insertion in model container [2024-11-22 21:34:11,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10" (2/3) ... [2024-11-22 21:34:11,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386916e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:11, skipping insertion in model container [2024-11-22 21:34:11,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:11" (3/3) ... [2024-11-22 21:34:11,590 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-11-22 21:34:11,606 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:34:11,607 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-11-22 21:34:11,607 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:34:11,692 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 21:34:11,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 132 transitions, 278 flow [2024-11-22 21:34:11,796 INFO L124 PetriNetUnfolderBase]: 18/165 cut-off events. [2024-11-22 21:34:11,796 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:34:11,801 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. [2024-11-22 21:34:11,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 132 transitions, 278 flow [2024-11-22 21:34:11,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 130 transitions, 272 flow [2024-11-22 21:34:11,818 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:34:11,829 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;@54304341, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:34:11,829 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-22 21:34:11,834 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:34:11,837 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-22 21:34:11,837 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:34:11,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:11,838 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-22 21:34:11,839 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:11,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:11,850 INFO L85 PathProgramCache]: Analyzing trace with hash 495006, now seen corresponding path program 1 times [2024-11-22 21:34:11,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:11,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050397249] [2024-11-22 21:34:11,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:11,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:11,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:11,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:11,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-22 21:34:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:12,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:34:12,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:12,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:12,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:12,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:12,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050397249] [2024-11-22 21:34:12,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050397249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:12,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:12,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:12,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419697526] [2024-11-22 21:34:12,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:12,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:12,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:12,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:12,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:12,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-22 21:34:12,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:12,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:12,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-22 21:34:12,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:12,932 INFO L124 PetriNetUnfolderBase]: 707/2019 cut-off events. [2024-11-22 21:34:12,932 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-22 21:34:12,939 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. [2024-11-22 21:34:12,952 INFO L140 encePairwiseOnDemand]: 114/132 looper letters, 54 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-11-22 21:34:12,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 118 transitions, 360 flow [2024-11-22 21:34:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:12,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-22 21:34:12,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-22 21:34:12,969 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 272 flow. Second operand 3 states and 264 transitions. [2024-11-22 21:34:12,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 118 transitions, 360 flow [2024-11-22 21:34:12,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 352 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:34:12,979 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-11-22 21:34:12,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-11-22 21:34:12,987 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -12 predicate places. [2024-11-22 21:34:12,987 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-11-22 21:34:12,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:12,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:12,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-22 21:34:12,995 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 (2)] Ended with exit code 0 [2024-11-22 21:34:13,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:13,193 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:13,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:13,194 INFO L85 PathProgramCache]: Analyzing trace with hash 495007, now seen corresponding path program 1 times [2024-11-22 21:34:13,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:13,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872097853] [2024-11-22 21:34:13,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:13,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:13,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:13,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:13,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-22 21:34:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:13,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:34:13,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:13,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:13,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:13,348 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:13,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:13,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872097853] [2024-11-22 21:34:13,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872097853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:13,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:13,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:13,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001163282] [2024-11-22 21:34:13,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:13,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:13,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:13,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:13,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:13,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2024-11-22 21:34:13,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:13,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:13,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2024-11-22 21:34:13,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:13,916 INFO L124 PetriNetUnfolderBase]: 707/2015 cut-off events. [2024-11-22 21:34:13,917 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-22 21:34:13,920 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. [2024-11-22 21:34:13,928 INFO L140 encePairwiseOnDemand]: 126/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-11-22 21:34:13,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 114 transitions, 344 flow [2024-11-22 21:34:13,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:13,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2024-11-22 21:34:13,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465 [2024-11-22 21:34:13,932 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 256 transitions. [2024-11-22 21:34:13,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 114 transitions, 344 flow [2024-11-22 21:34:13,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 114 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:13,938 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 216 flow [2024-11-22 21:34:13,939 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2024-11-22 21:34:13,939 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-22 21:34:13,940 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 216 flow [2024-11-22 21:34:13,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:13,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:13,940 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-22 21:34:13,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:14,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:14,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:14,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:14,146 INFO L85 PathProgramCache]: Analyzing trace with hash 15345152, now seen corresponding path program 1 times [2024-11-22 21:34:14,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:14,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846396535] [2024-11-22 21:34:14,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:14,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:14,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:14,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:14,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-22 21:34:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:14,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:34:14,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:14,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:14,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:14,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846396535] [2024-11-22 21:34:14,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846396535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:14,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:14,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:14,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729547011] [2024-11-22 21:34:14,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:14,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:14,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:14,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:14,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:14,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-22 21:34:14,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:14,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:14,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-22 21:34:14,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:14,582 INFO L124 PetriNetUnfolderBase]: 706/1746 cut-off events. [2024-11-22 21:34:14,582 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-22 21:34:14,586 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. [2024-11-22 21:34:14,594 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-11-22 21:34:14,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 113 transitions, 342 flow [2024-11-22 21:34:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:14,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:14,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-22 21:34:14,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6616161616161617 [2024-11-22 21:34:14,597 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 216 flow. Second operand 3 states and 262 transitions. [2024-11-22 21:34:14,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 113 transitions, 342 flow [2024-11-22 21:34:14,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 113 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:14,601 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 214 flow [2024-11-22 21:34:14,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-11-22 21:34:14,602 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-22 21:34:14,602 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 214 flow [2024-11-22 21:34:14,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:14,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:14,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:14,609 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 (4)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:14,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:14,804 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:14,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:14,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1320838570, now seen corresponding path program 1 times [2024-11-22 21:34:14,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:14,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647385885] [2024-11-22 21:34:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:14,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:14,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:14,807 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:14,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-22 21:34:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:14,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:34:14,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:14,992 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:14,993 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:14,993 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:15,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-22 21:34:15,056 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:15,057 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:15,057 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:15,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:15,075 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 [2024-11-22 21:34:15,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:15,221 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 [2024-11-22 21:34:15,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:15,237 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:15,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:15,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647385885] [2024-11-22 21:34:15,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647385885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:15,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:15,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:15,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750860662] [2024-11-22 21:34:15,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:15,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:15,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:15,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:15,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:15,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-22 21:34:15,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:15,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:15,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-22 21:34:15,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:16,314 INFO L124 PetriNetUnfolderBase]: 1153/2722 cut-off events. [2024-11-22 21:34:16,315 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-22 21:34:16,319 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. [2024-11-22 21:34:16,329 INFO L140 encePairwiseOnDemand]: 121/132 looper letters, 49 selfloop transitions, 9 changer transitions 0/107 dead transitions. [2024-11-22 21:34:16,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 107 transitions, 339 flow [2024-11-22 21:34:16,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:34:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:34:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 380 transitions. [2024-11-22 21:34:16,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-11-22 21:34:16,332 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 214 flow. Second operand 5 states and 380 transitions. [2024-11-22 21:34:16,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 107 transitions, 339 flow [2024-11-22 21:34:16,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 107 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:16,340 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 236 flow [2024-11-22 21:34:16,340 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} [2024-11-22 21:34:16,342 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -19 predicate places. [2024-11-22 21:34:16,342 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 236 flow [2024-11-22 21:34:16,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:16,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:16,344 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:16,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-22 21:34:16,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:16,549 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)] === [2024-11-22 21:34:16,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:16,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1081930850, now seen corresponding path program 1 times [2024-11-22 21:34:16,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:16,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230768935] [2024-11-22 21:34:16,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:16,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:16,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:16,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:16,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-22 21:34:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:16,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:34:16,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:16,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:16,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:16,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:16,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:16,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230768935] [2024-11-22 21:34:16,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230768935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:16,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:16,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:16,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702900450] [2024-11-22 21:34:16,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:16,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:16,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:16,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:16,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:16,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2024-11-22 21:34:16,848 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) [2024-11-22 21:34:16,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:16,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2024-11-22 21:34:16,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:17,199 INFO L124 PetriNetUnfolderBase]: 954/2206 cut-off events. [2024-11-22 21:34:17,199 INFO L125 PetriNetUnfolderBase]: For 49/52 co-relation queries the response was YES. [2024-11-22 21:34:17,203 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. [2024-11-22 21:34:17,211 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 52 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-22 21:34:17,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 105 transitions, 358 flow [2024-11-22 21:34:17,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:17,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:17,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-11-22 21:34:17,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2024-11-22 21:34:17,213 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 236 flow. Second operand 3 states and 246 transitions. [2024-11-22 21:34:17,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 105 transitions, 358 flow [2024-11-22 21:34:17,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 105 transitions, 348 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:17,216 INFO L231 Difference]: Finished difference. Result has 97 places, 95 transitions, 224 flow [2024-11-22 21:34:17,216 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} [2024-11-22 21:34:17,217 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -25 predicate places. [2024-11-22 21:34:17,217 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 224 flow [2024-11-22 21:34:17,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:17,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:17,218 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:17,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-22 21:34:17,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:17,422 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)] === [2024-11-22 21:34:17,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:17,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1081930849, now seen corresponding path program 1 times [2024-11-22 21:34:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:17,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388983879] [2024-11-22 21:34:17,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:17,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:17,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:17,426 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:17,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-22 21:34:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:17,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:34:17,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:17,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:17,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:17,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:17,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388983879] [2024-11-22 21:34:17,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388983879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:17,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:17,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:17,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5922741] [2024-11-22 21:34:17,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:17,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:17,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:17,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:17,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:17,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-22 21:34:17,788 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) [2024-11-22 21:34:17,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:17,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-22 21:34:17,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:18,107 INFO L124 PetriNetUnfolderBase]: 816/1953 cut-off events. [2024-11-22 21:34:18,108 INFO L125 PetriNetUnfolderBase]: For 87/90 co-relation queries the response was YES. [2024-11-22 21:34:18,111 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. [2024-11-22 21:34:18,122 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 63 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-11-22 21:34:18,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 392 flow [2024-11-22 21:34:18,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2024-11-22 21:34:18,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-11-22 21:34:18,124 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 224 flow. Second operand 3 states and 261 transitions. [2024-11-22 21:34:18,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 392 flow [2024-11-22 21:34:18,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:18,127 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 237 flow [2024-11-22 21:34:18,129 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} [2024-11-22 21:34:18,130 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -24 predicate places. [2024-11-22 21:34:18,131 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 237 flow [2024-11-22 21:34:18,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:18,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:18,132 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:18,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-22 21:34:18,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:18,333 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)] === [2024-11-22 21:34:18,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:18,333 INFO L85 PathProgramCache]: Analyzing trace with hash 899898881, now seen corresponding path program 1 times [2024-11-22 21:34:18,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:18,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99037208] [2024-11-22 21:34:18,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:18,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:18,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:18,335 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:18,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-22 21:34:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:18,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 21:34:18,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:18,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:18,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:18,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:18,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:18,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99037208] [2024-11-22 21:34:18,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99037208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:18,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:18,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:18,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185965363] [2024-11-22 21:34:18,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:18,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:18,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:18,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:18,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:18,820 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2024-11-22 21:34:18,821 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) [2024-11-22 21:34:18,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:18,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2024-11-22 21:34:18,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:19,508 INFO L124 PetriNetUnfolderBase]: 1177/2702 cut-off events. [2024-11-22 21:34:19,508 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2024-11-22 21:34:19,512 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. [2024-11-22 21:34:19,519 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 102 selfloop transitions, 15 changer transitions 1/162 dead transitions. [2024-11-22 21:34:19,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 162 transitions, 628 flow [2024-11-22 21:34:19,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:34:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:34:19,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 594 transitions. [2024-11-22 21:34:19,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-11-22 21:34:19,522 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 237 flow. Second operand 8 states and 594 transitions. [2024-11-22 21:34:19,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 162 transitions, 628 flow [2024-11-22 21:34:19,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 162 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:34:19,527 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 341 flow [2024-11-22 21:34:19,527 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} [2024-11-22 21:34:19,528 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -14 predicate places. [2024-11-22 21:34:19,528 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 341 flow [2024-11-22 21:34:19,528 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) [2024-11-22 21:34:19,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:19,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:19,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-22 21:34:19,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:19,735 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)] === [2024-11-22 21:34:19,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:19,736 INFO L85 PathProgramCache]: Analyzing trace with hash 899898882, now seen corresponding path program 1 times [2024-11-22 21:34:19,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:19,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423484419] [2024-11-22 21:34:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:19,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:19,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:19,741 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:19,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-22 21:34:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:19,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 21:34:19,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:19,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:19,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:19,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:19,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423484419] [2024-11-22 21:34:19,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423484419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:19,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:19,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:19,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855282332] [2024-11-22 21:34:19,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:19,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:19,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:19,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:19,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:20,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2024-11-22 21:34:20,409 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) [2024-11-22 21:34:20,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:20,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2024-11-22 21:34:20,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:20,988 INFO L124 PetriNetUnfolderBase]: 910/2220 cut-off events. [2024-11-22 21:34:20,988 INFO L125 PetriNetUnfolderBase]: For 978/1064 co-relation queries the response was YES. [2024-11-22 21:34:20,992 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. [2024-11-22 21:34:20,999 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 89 selfloop transitions, 12 changer transitions 2/154 dead transitions. [2024-11-22 21:34:20,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 154 transitions, 655 flow [2024-11-22 21:34:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:34:21,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:34:21,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 545 transitions. [2024-11-22 21:34:21,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5898268398268398 [2024-11-22 21:34:21,001 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 341 flow. Second operand 7 states and 545 transitions. [2024-11-22 21:34:21,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 154 transitions, 655 flow [2024-11-22 21:34:21,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 154 transitions, 655 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 21:34:21,008 INFO L231 Difference]: Finished difference. Result has 117 places, 108 transitions, 401 flow [2024-11-22 21:34:21,008 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} [2024-11-22 21:34:21,009 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -5 predicate places. [2024-11-22 21:34:21,009 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 108 transitions, 401 flow [2024-11-22 21:34:21,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:21,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:21,010 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:21,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-22 21:34:21,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:21,211 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:21,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:21,211 INFO L85 PathProgramCache]: Analyzing trace with hash -60742247, now seen corresponding path program 1 times [2024-11-22 21:34:21,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:21,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222286103] [2024-11-22 21:34:21,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:21,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:21,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:21,213 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:21,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-22 21:34:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:21,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 21:34:21,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:21,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:21,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:21,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:21,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222286103] [2024-11-22 21:34:21,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222286103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:21,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:21,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:21,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831754081] [2024-11-22 21:34:21,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:21,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:21,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:21,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:21,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:21,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2024-11-22 21:34:21,934 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) [2024-11-22 21:34:21,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:21,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2024-11-22 21:34:21,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:22,512 INFO L124 PetriNetUnfolderBase]: 894/2266 cut-off events. [2024-11-22 21:34:22,512 INFO L125 PetriNetUnfolderBase]: For 1910/2000 co-relation queries the response was YES. [2024-11-22 21:34:22,518 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. [2024-11-22 21:34:22,524 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 92 selfloop transitions, 16 changer transitions 1/160 dead transitions. [2024-11-22 21:34:22,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 160 transitions, 802 flow [2024-11-22 21:34:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:34:22,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:34:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 542 transitions. [2024-11-22 21:34:22,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5865800865800865 [2024-11-22 21:34:22,526 INFO L175 Difference]: Start difference. First operand has 117 places, 108 transitions, 401 flow. Second operand 7 states and 542 transitions. [2024-11-22 21:34:22,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 160 transitions, 802 flow [2024-11-22 21:34:22,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 160 transitions, 781 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:34:22,532 INFO L231 Difference]: Finished difference. Result has 121 places, 115 transitions, 491 flow [2024-11-22 21:34:22,532 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} [2024-11-22 21:34:22,533 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -1 predicate places. [2024-11-22 21:34:22,533 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 115 transitions, 491 flow [2024-11-22 21:34:22,533 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) [2024-11-22 21:34:22,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:22,534 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:22,540 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 (10)] Ended with exit code 0 [2024-11-22 21:34:22,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:22,734 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:22,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:22,735 INFO L85 PathProgramCache]: Analyzing trace with hash -60742248, now seen corresponding path program 1 times [2024-11-22 21:34:22,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:22,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379831688] [2024-11-22 21:34:22,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:22,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:22,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:22,739 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:22,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-22 21:34:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:22,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 21:34:22,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:22,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:22,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:22,923 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:22,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:22,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379831688] [2024-11-22 21:34:22,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379831688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:22,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:22,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445637567] [2024-11-22 21:34:22,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:22,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:22,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:22,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:22,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:23,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2024-11-22 21:34:23,192 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) [2024-11-22 21:34:23,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:23,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2024-11-22 21:34:23,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:23,854 INFO L124 PetriNetUnfolderBase]: 1336/2918 cut-off events. [2024-11-22 21:34:23,854 INFO L125 PetriNetUnfolderBase]: For 3191/3346 co-relation queries the response was YES. [2024-11-22 21:34:23,859 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. [2024-11-22 21:34:23,869 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 108 selfloop transitions, 21 changer transitions 0/175 dead transitions. [2024-11-22 21:34:23,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 175 transitions, 924 flow [2024-11-22 21:34:23,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:34:23,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:34:23,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 593 transitions. [2024-11-22 21:34:23,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5615530303030303 [2024-11-22 21:34:23,872 INFO L175 Difference]: Start difference. First operand has 121 places, 115 transitions, 491 flow. Second operand 8 states and 593 transitions. [2024-11-22 21:34:23,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 175 transitions, 924 flow [2024-11-22 21:34:23,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 175 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:34:23,881 INFO L231 Difference]: Finished difference. Result has 132 places, 121 transitions, 616 flow [2024-11-22 21:34:23,882 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} [2024-11-22 21:34:23,882 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2024-11-22 21:34:23,882 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 121 transitions, 616 flow [2024-11-22 21:34:23,883 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) [2024-11-22 21:34:23,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:23,883 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:23,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-22 21:34:24,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:24,084 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)] === [2024-11-22 21:34:24,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:24,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1770422097, now seen corresponding path program 1 times [2024-11-22 21:34:24,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:24,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145513728] [2024-11-22 21:34:24,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:24,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:24,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:24,089 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:24,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-22 21:34:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:24,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:34:24,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:24,312 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:24,312 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:24,313 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:24,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-22 21:34:24,354 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:24,361 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:24,361 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 [2024-11-22 21:34:24,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:24,438 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 [2024-11-22 21:34:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:24,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:24,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:24,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145513728] [2024-11-22 21:34:24,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145513728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:24,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:24,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:24,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644213798] [2024-11-22 21:34:24,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:24,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:24,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:24,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:24,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:24,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-22 21:34:24,670 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) [2024-11-22 21:34:24,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:24,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-22 21:34:24,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:26,484 INFO L124 PetriNetUnfolderBase]: 1837/3730 cut-off events. [2024-11-22 21:34:26,484 INFO L125 PetriNetUnfolderBase]: For 6896/7188 co-relation queries the response was YES. [2024-11-22 21:34:26,496 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. [2024-11-22 21:34:26,511 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 109 selfloop transitions, 23 changer transitions 0/178 dead transitions. [2024-11-22 21:34:26,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 178 transitions, 1127 flow [2024-11-22 21:34:26,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:34:26,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:34:26,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2024-11-22 21:34:26,516 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6174242424242424 [2024-11-22 21:34:26,516 INFO L175 Difference]: Start difference. First operand has 132 places, 121 transitions, 616 flow. Second operand 6 states and 489 transitions. [2024-11-22 21:34:26,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 178 transitions, 1127 flow [2024-11-22 21:34:26,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 178 transitions, 1114 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:26,531 INFO L231 Difference]: Finished difference. Result has 138 places, 144 transitions, 834 flow [2024-11-22 21:34:26,531 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} [2024-11-22 21:34:26,532 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 16 predicate places. [2024-11-22 21:34:26,532 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 144 transitions, 834 flow [2024-11-22 21:34:26,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:26,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:26,533 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:26,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-22 21:34:26,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:26,733 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)] === [2024-11-22 21:34:26,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:26,734 INFO L85 PathProgramCache]: Analyzing trace with hash 925744658, now seen corresponding path program 1 times [2024-11-22 21:34:26,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:26,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395069903] [2024-11-22 21:34:26,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:26,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:26,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:26,736 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:26,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-22 21:34:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:26,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 21:34:26,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:26,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:26,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:27,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:27,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-22 21:34:27,152 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:34:27,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-22 21:34:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:27,177 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:27,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:27,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395069903] [2024-11-22 21:34:27,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395069903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:27,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:27,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:27,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432584784] [2024-11-22 21:34:27,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:27,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:34:27,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:27,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:34:27,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:34:27,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 132 [2024-11-22 21:34:27,687 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) [2024-11-22 21:34:27,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:27,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 132 [2024-11-22 21:34:27,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:28,741 INFO L124 PetriNetUnfolderBase]: 2107/4457 cut-off events. [2024-11-22 21:34:28,742 INFO L125 PetriNetUnfolderBase]: For 9447/9725 co-relation queries the response was YES. [2024-11-22 21:34:28,759 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. [2024-11-22 21:34:28,778 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 146 selfloop transitions, 24 changer transitions 0/220 dead transitions. [2024-11-22 21:34:28,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 220 transitions, 1463 flow [2024-11-22 21:34:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:34:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:34:28,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 618 transitions. [2024-11-22 21:34:28,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5202020202020202 [2024-11-22 21:34:28,781 INFO L175 Difference]: Start difference. First operand has 138 places, 144 transitions, 834 flow. Second operand 9 states and 618 transitions. [2024-11-22 21:34:28,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 220 transitions, 1463 flow [2024-11-22 21:34:28,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 220 transitions, 1434 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:28,805 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 853 flow [2024-11-22 21:34:28,806 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} [2024-11-22 21:34:28,808 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 20 predicate places. [2024-11-22 21:34:28,808 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 853 flow [2024-11-22 21:34:28,808 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) [2024-11-22 21:34:28,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:28,809 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] [2024-11-22 21:34:28,817 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 [2024-11-22 21:34:29,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:29,009 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:29,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:29,010 INFO L85 PathProgramCache]: Analyzing trace with hash 560549730, now seen corresponding path program 1 times [2024-11-22 21:34:29,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:29,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368489940] [2024-11-22 21:34:29,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:29,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:29,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:29,011 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:29,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-22 21:34:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:29,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 21:34:29,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:29,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:29,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:29,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:29,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-22 21:34:29,352 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:34:29,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-22 21:34:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:29,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:29,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:29,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368489940] [2024-11-22 21:34:29,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368489940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:29,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:29,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:29,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671958764] [2024-11-22 21:34:29,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:29,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:34:29,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:29,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:34:29,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:34:29,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 132 [2024-11-22 21:34:29,845 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) [2024-11-22 21:34:29,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:29,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 132 [2024-11-22 21:34:29,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:30,769 INFO L124 PetriNetUnfolderBase]: 2387/5014 cut-off events. [2024-11-22 21:34:30,769 INFO L125 PetriNetUnfolderBase]: For 12020/12358 co-relation queries the response was YES. [2024-11-22 21:34:30,787 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. [2024-11-22 21:34:30,803 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 146 selfloop transitions, 24 changer transitions 0/218 dead transitions. [2024-11-22 21:34:30,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 218 transitions, 1491 flow [2024-11-22 21:34:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:34:30,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:34:30,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 618 transitions. [2024-11-22 21:34:30,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5202020202020202 [2024-11-22 21:34:30,806 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 853 flow. Second operand 9 states and 618 transitions. [2024-11-22 21:34:30,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 218 transitions, 1491 flow [2024-11-22 21:34:30,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 218 transitions, 1435 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-22 21:34:30,828 INFO L231 Difference]: Finished difference. Result has 140 places, 140 transitions, 851 flow [2024-11-22 21:34:30,828 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} [2024-11-22 21:34:30,828 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-11-22 21:34:30,829 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 140 transitions, 851 flow [2024-11-22 21:34:30,829 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) [2024-11-22 21:34:30,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:30,829 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:30,839 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 (14)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:31,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:31,030 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)] === [2024-11-22 21:34:31,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:31,030 INFO L85 PathProgramCache]: Analyzing trace with hash 386742127, now seen corresponding path program 1 times [2024-11-22 21:34:31,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:31,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236550004] [2024-11-22 21:34:31,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:31,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:31,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:31,033 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:31,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-22 21:34:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:31,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:34:31,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:31,238 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:31,239 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:31,239 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:31,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-22 21:34:31,305 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:31,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2024-11-22 21:34:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:31,319 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:31,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:31,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236550004] [2024-11-22 21:34:31,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236550004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:31,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:31,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:31,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181217146] [2024-11-22 21:34:31,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:31,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:31,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:31,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:31,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:31,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-22 21:34:31,573 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) [2024-11-22 21:34:31,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:31,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-22 21:34:31,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:32,784 INFO L124 PetriNetUnfolderBase]: 2542/5263 cut-off events. [2024-11-22 21:34:32,784 INFO L125 PetriNetUnfolderBase]: For 17229/17709 co-relation queries the response was YES. [2024-11-22 21:34:32,797 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. [2024-11-22 21:34:32,814 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 114 selfloop transitions, 35 changer transitions 0/190 dead transitions. [2024-11-22 21:34:32,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 190 transitions, 1473 flow [2024-11-22 21:34:32,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:34:32,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:34:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 416 transitions. [2024-11-22 21:34:32,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-22 21:34:32,817 INFO L175 Difference]: Start difference. First operand has 140 places, 140 transitions, 851 flow. Second operand 5 states and 416 transitions. [2024-11-22 21:34:32,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 190 transitions, 1473 flow [2024-11-22 21:34:32,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 190 transitions, 1422 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-22 21:34:32,868 INFO L231 Difference]: Finished difference. Result has 141 places, 159 transitions, 1140 flow [2024-11-22 21:34:32,868 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} [2024-11-22 21:34:32,869 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 19 predicate places. [2024-11-22 21:34:32,869 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 159 transitions, 1140 flow [2024-11-22 21:34:32,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:32,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:32,869 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:32,879 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 (15)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:33,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:33,070 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)] === [2024-11-22 21:34:33,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:33,071 INFO L85 PathProgramCache]: Analyzing trace with hash -896002718, now seen corresponding path program 1 times [2024-11-22 21:34:33,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:33,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421737369] [2024-11-22 21:34:33,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:33,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:33,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:33,072 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:33,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-22 21:34:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:33,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 21:34:33,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:33,372 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 [2024-11-22 21:34:33,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:33,383 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:33,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:33,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421737369] [2024-11-22 21:34:33,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421737369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:33,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:33,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:33,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135232299] [2024-11-22 21:34:33,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:33,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:33,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:33,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:33,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-22 21:34:33,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 132 [2024-11-22 21:34:33,389 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) [2024-11-22 21:34:33,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:33,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 132 [2024-11-22 21:34:33,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:34,538 INFO L124 PetriNetUnfolderBase]: 4002/7517 cut-off events. [2024-11-22 21:34:34,538 INFO L125 PetriNetUnfolderBase]: For 24649/24653 co-relation queries the response was YES. [2024-11-22 21:34:34,568 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. [2024-11-22 21:34:34,592 INFO L140 encePairwiseOnDemand]: 106/132 looper letters, 145 selfloop transitions, 40 changer transitions 4/209 dead transitions. [2024-11-22 21:34:34,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 209 transitions, 1787 flow [2024-11-22 21:34:34,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:34:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:34:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 310 transitions. [2024-11-22 21:34:34,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2024-11-22 21:34:34,594 INFO L175 Difference]: Start difference. First operand has 141 places, 159 transitions, 1140 flow. Second operand 5 states and 310 transitions. [2024-11-22 21:34:34,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 209 transitions, 1787 flow [2024-11-22 21:34:34,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 209 transitions, 1773 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-22 21:34:34,680 INFO L231 Difference]: Finished difference. Result has 148 places, 177 transitions, 1421 flow [2024-11-22 21:34:34,680 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} [2024-11-22 21:34:34,681 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 26 predicate places. [2024-11-22 21:34:34,681 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 177 transitions, 1421 flow [2024-11-22 21:34:34,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:34,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:34,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:34,689 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 [2024-11-22 21:34:34,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:34,882 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)] === [2024-11-22 21:34:34,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:34,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1625776092, now seen corresponding path program 1 times [2024-11-22 21:34:34,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:34,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290127920] [2024-11-22 21:34:34,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:34,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:34,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:34,885 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:34,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-22 21:34:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:35,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:34:35,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:35,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:35,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:35,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:35,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290127920] [2024-11-22 21:34:35,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290127920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:35,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:35,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:35,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925471460] [2024-11-22 21:34:35,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:35,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:35,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:35,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:35,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-22 21:34:35,183 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) [2024-11-22 21:34:35,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:35,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-22 21:34:35,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:35,994 INFO L124 PetriNetUnfolderBase]: 2778/5523 cut-off events. [2024-11-22 21:34:35,994 INFO L125 PetriNetUnfolderBase]: For 27318/27748 co-relation queries the response was YES. [2024-11-22 21:34:36,010 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. [2024-11-22 21:34:36,023 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/183 dead transitions. [2024-11-22 21:34:36,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 183 transitions, 1677 flow [2024-11-22 21:34:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:36,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-22 21:34:36,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-11-22 21:34:36,025 INFO L175 Difference]: Start difference. First operand has 148 places, 177 transitions, 1421 flow. Second operand 3 states and 257 transitions. [2024-11-22 21:34:36,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 183 transitions, 1677 flow [2024-11-22 21:34:36,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 183 transitions, 1589 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-22 21:34:36,101 INFO L231 Difference]: Finished difference. Result has 144 places, 175 transitions, 1339 flow [2024-11-22 21:34:36,101 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} [2024-11-22 21:34:36,102 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 22 predicate places. [2024-11-22 21:34:36,102 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 175 transitions, 1339 flow [2024-11-22 21:34:36,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:36,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:36,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:36,108 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 (17)] Ended with exit code 0 [2024-11-22 21:34:36,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:36,303 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)] === [2024-11-22 21:34:36,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1330151493, now seen corresponding path program 1 times [2024-11-22 21:34:36,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:36,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7775934] [2024-11-22 21:34:36,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:36,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:36,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:36,305 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:36,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-22 21:34:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:36,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:34:36,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:36,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:36,484 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:36,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7775934] [2024-11-22 21:34:36,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7775934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:36,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:36,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:36,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004759769] [2024-11-22 21:34:36,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:36,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:36,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:36,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:36,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:36,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-22 21:34:36,575 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) [2024-11-22 21:34:36,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:36,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-22 21:34:36,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:37,292 INFO L124 PetriNetUnfolderBase]: 2778/5515 cut-off events. [2024-11-22 21:34:37,292 INFO L125 PetriNetUnfolderBase]: For 24731/25161 co-relation queries the response was YES. [2024-11-22 21:34:37,307 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. [2024-11-22 21:34:37,330 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-11-22 21:34:37,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 181 transitions, 1595 flow [2024-11-22 21:34:37,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:37,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-22 21:34:37,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-11-22 21:34:37,332 INFO L175 Difference]: Start difference. First operand has 144 places, 175 transitions, 1339 flow. Second operand 3 states and 257 transitions. [2024-11-22 21:34:37,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 181 transitions, 1595 flow [2024-11-22 21:34:37,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 181 transitions, 1585 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:37,417 INFO L231 Difference]: Finished difference. Result has 142 places, 173 transitions, 1335 flow [2024-11-22 21:34:37,417 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} [2024-11-22 21:34:37,418 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 20 predicate places. [2024-11-22 21:34:37,418 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 173 transitions, 1335 flow [2024-11-22 21:34:37,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:37,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:37,418 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:37,425 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 [2024-11-22 21:34:37,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:37,619 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)] === [2024-11-22 21:34:37,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1245600125, now seen corresponding path program 1 times [2024-11-22 21:34:37,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:37,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525198365] [2024-11-22 21:34:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:37,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:37,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:37,621 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:37,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-22 21:34:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:37,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:34:37,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:37,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:37,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:37,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525198365] [2024-11-22 21:34:37,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525198365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:37,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:37,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:37,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34247139] [2024-11-22 21:34:37,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:37,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:37,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:37,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:37,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:37,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-22 21:34:37,801 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) [2024-11-22 21:34:37,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:37,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-22 21:34:37,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:37,978 INFO L124 PetriNetUnfolderBase]: 266/537 cut-off events. [2024-11-22 21:34:37,978 INFO L125 PetriNetUnfolderBase]: For 2024/2077 co-relation queries the response was YES. [2024-11-22 21:34:37,980 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. [2024-11-22 21:34:37,981 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 60 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2024-11-22 21:34:37,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 100 transitions, 679 flow [2024-11-22 21:34:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:37,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2024-11-22 21:34:37,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.634469696969697 [2024-11-22 21:34:37,982 INFO L175 Difference]: Start difference. First operand has 142 places, 173 transitions, 1335 flow. Second operand 4 states and 335 transitions. [2024-11-22 21:34:37,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 100 transitions, 679 flow [2024-11-22 21:34:37,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 100 transitions, 494 flow, removed 33 selfloop flow, removed 31 redundant places. [2024-11-22 21:34:37,987 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 302 flow [2024-11-22 21:34:37,987 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} [2024-11-22 21:34:37,987 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -28 predicate places. [2024-11-22 21:34:37,987 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 302 flow [2024-11-22 21:34:37,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:37,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:37,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:37,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-22 21:34:38,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:38,188 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)] === [2024-11-22 21:34:38,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1280331149, now seen corresponding path program 1 times [2024-11-22 21:34:38,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:38,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850454836] [2024-11-22 21:34:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:38,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:38,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:38,190 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:38,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-22 21:34:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:38,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 21:34:38,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:38,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-22 21:34:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:38,490 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:38,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:38,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850454836] [2024-11-22 21:34:38,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850454836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:38,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:38,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:34:38,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346642261] [2024-11-22 21:34:38,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:38,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:34:38,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:38,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:34:38,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:34:38,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-22 21:34:38,669 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) [2024-11-22 21:34:38,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:38,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-22 21:34:38,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:39,156 INFO L124 PetriNetUnfolderBase]: 294/621 cut-off events. [2024-11-22 21:34:39,157 INFO L125 PetriNetUnfolderBase]: For 884/890 co-relation queries the response was YES. [2024-11-22 21:34:39,159 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. [2024-11-22 21:34:39,161 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 76 selfloop transitions, 29 changer transitions 0/136 dead transitions. [2024-11-22 21:34:39,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 136 transitions, 758 flow [2024-11-22 21:34:39,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 21:34:39,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-22 21:34:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 861 transitions. [2024-11-22 21:34:39,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5929752066115702 [2024-11-22 21:34:39,164 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 302 flow. Second operand 11 states and 861 transitions. [2024-11-22 21:34:39,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 136 transitions, 758 flow [2024-11-22 21:34:39,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 136 transitions, 722 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:39,169 INFO L231 Difference]: Finished difference. Result has 105 places, 99 transitions, 476 flow [2024-11-22 21:34:39,169 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} [2024-11-22 21:34:39,169 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -17 predicate places. [2024-11-22 21:34:39,170 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 99 transitions, 476 flow [2024-11-22 21:34:39,170 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) [2024-11-22 21:34:39,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:39,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:39,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:39,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:39,371 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)] === [2024-11-22 21:34:39,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:39,372 INFO L85 PathProgramCache]: Analyzing trace with hash 612056559, now seen corresponding path program 2 times [2024-11-22 21:34:39,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:39,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785400597] [2024-11-22 21:34:39,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:34:39,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:39,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:39,374 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:39,374 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 (21)] Waiting until timeout for monitored process [2024-11-22 21:34:39,617 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:34:39,618 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:39,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 21:34:39,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:39,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-22 21:34:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:39,704 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:39,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:39,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785400597] [2024-11-22 21:34:39,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785400597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:39,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:39,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:34:39,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720110393] [2024-11-22 21:34:39,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:39,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:34:39,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:39,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:34:39,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:34:39,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-22 21:34:39,905 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) [2024-11-22 21:34:39,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:39,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-22 21:34:39,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:40,421 INFO L124 PetriNetUnfolderBase]: 328/700 cut-off events. [2024-11-22 21:34:40,421 INFO L125 PetriNetUnfolderBase]: For 1623/1642 co-relation queries the response was YES. [2024-11-22 21:34:40,423 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. [2024-11-22 21:34:40,424 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 80 selfloop transitions, 42 changer transitions 0/153 dead transitions. [2024-11-22 21:34:40,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 153 transitions, 1039 flow [2024-11-22 21:34:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 21:34:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-22 21:34:40,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 861 transitions. [2024-11-22 21:34:40,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5929752066115702 [2024-11-22 21:34:40,427 INFO L175 Difference]: Start difference. First operand has 105 places, 99 transitions, 476 flow. Second operand 11 states and 861 transitions. [2024-11-22 21:34:40,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 153 transitions, 1039 flow [2024-11-22 21:34:40,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 153 transitions, 993 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-22 21:34:40,434 INFO L231 Difference]: Finished difference. Result has 114 places, 118 transitions, 731 flow [2024-11-22 21:34:40,434 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} [2024-11-22 21:34:40,435 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -8 predicate places. [2024-11-22 21:34:40,435 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 118 transitions, 731 flow [2024-11-22 21:34:40,435 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) [2024-11-22 21:34:40,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:40,435 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:40,446 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 [2024-11-22 21:34:40,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:40,636 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)] === [2024-11-22 21:34:40,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:40,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1818691607, now seen corresponding path program 3 times [2024-11-22 21:34:40,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:40,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532586516] [2024-11-22 21:34:40,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:34:40,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:40,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:40,639 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:40,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-22 21:34:40,914 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 21:34:40,915 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:40,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:34:40,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:40,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:34:40,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:41,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:41,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-22 21:34:41,187 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:34:41,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-22 21:34:41,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:41,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:41,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:41,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532586516] [2024-11-22 21:34:41,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532586516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:41,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:41,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:41,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614068271] [2024-11-22 21:34:41,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:41,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:41,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:41,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:41,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:41,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 132 [2024-11-22 21:34:41,407 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) [2024-11-22 21:34:41,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:41,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 132 [2024-11-22 21:34:41,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:41,560 INFO L124 PetriNetUnfolderBase]: 327/681 cut-off events. [2024-11-22 21:34:41,560 INFO L125 PetriNetUnfolderBase]: For 2147/2173 co-relation queries the response was YES. [2024-11-22 21:34:41,562 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. [2024-11-22 21:34:41,564 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 86 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2024-11-22 21:34:41,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 112 transitions, 899 flow [2024-11-22 21:34:41,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 271 transitions. [2024-11-22 21:34:41,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5132575757575758 [2024-11-22 21:34:41,565 INFO L175 Difference]: Start difference. First operand has 114 places, 118 transitions, 731 flow. Second operand 4 states and 271 transitions. [2024-11-22 21:34:41,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 112 transitions, 899 flow [2024-11-22 21:34:41,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 112 transitions, 837 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-22 21:34:41,572 INFO L231 Difference]: Finished difference. Result has 106 places, 112 transitions, 665 flow [2024-11-22 21:34:41,573 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} [2024-11-22 21:34:41,573 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-22 21:34:41,573 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 112 transitions, 665 flow [2024-11-22 21:34:41,573 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) [2024-11-22 21:34:41,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:41,574 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:41,584 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 (22)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:41,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:41,775 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:41,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:41,775 INFO L85 PathProgramCache]: Analyzing trace with hash 616098376, now seen corresponding path program 1 times [2024-11-22 21:34:41,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:41,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483777406] [2024-11-22 21:34:41,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:41,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:41,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:41,777 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:41,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-22 21:34:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:42,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:34:42,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:42,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:42,137 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-22 21:34:42,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-22 21:34:42,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2024-11-22 21:34:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:42,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:42,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:42,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483777406] [2024-11-22 21:34:42,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483777406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:42,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:42,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:42,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126904195] [2024-11-22 21:34:42,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:42,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:42,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:42,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:42,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:42,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 132 [2024-11-22 21:34:42,310 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) [2024-11-22 21:34:42,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:42,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 132 [2024-11-22 21:34:42,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:42,557 INFO L124 PetriNetUnfolderBase]: 327/680 cut-off events. [2024-11-22 21:34:42,558 INFO L125 PetriNetUnfolderBase]: For 1579/1605 co-relation queries the response was YES. [2024-11-22 21:34:42,560 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. [2024-11-22 21:34:42,563 INFO L140 encePairwiseOnDemand]: 127/132 looper letters, 96 selfloop transitions, 7 changer transitions 0/125 dead transitions. [2024-11-22 21:34:42,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 125 transitions, 965 flow [2024-11-22 21:34:42,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 291 transitions. [2024-11-22 21:34:42,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5511363636363636 [2024-11-22 21:34:42,565 INFO L175 Difference]: Start difference. First operand has 106 places, 112 transitions, 665 flow. Second operand 4 states and 291 transitions. [2024-11-22 21:34:42,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 125 transitions, 965 flow [2024-11-22 21:34:42,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 125 transitions, 957 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:42,573 INFO L231 Difference]: Finished difference. Result has 105 places, 111 transitions, 669 flow [2024-11-22 21:34:42,574 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} [2024-11-22 21:34:42,574 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -17 predicate places. [2024-11-22 21:34:42,574 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 111 transitions, 669 flow [2024-11-22 21:34:42,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:42,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:42,575 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:42,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-22 21:34:42,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:42,776 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)] === [2024-11-22 21:34:42,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:42,777 INFO L85 PathProgramCache]: Analyzing trace with hash -125265219, now seen corresponding path program 1 times [2024-11-22 21:34:42,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:42,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402926870] [2024-11-22 21:34:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:42,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:42,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:42,781 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 21:34:42,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-22 21:34:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:43,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 21:34:43,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:43,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:43,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:43,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:43,295 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:43,295 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:43,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-22 21:34:43,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:43,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 75 [2024-11-22 21:34:45,298 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:45,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-22 21:34:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:45,326 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:45,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:45,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402926870] [2024-11-22 21:34:45,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402926870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:45,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:45,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 21:34:45,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294660710] [2024-11-22 21:34:45,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:45,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 21:34:45,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:45,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 21:34:45,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=41, Unknown=1, NotChecked=0, Total=56 [2024-11-22 21:34:47,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:48,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:50,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:53,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:54,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:56,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:58,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:00,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:02,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:04,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:06,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:08,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:10,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:13,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:15,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:16,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:18,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:20,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:21,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:24,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:26,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:28,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:30,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:32,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:34,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]