./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-3_2-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_2-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 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:34:05,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:34:05,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:34:05,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:34:05,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:34:05,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:34:05,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:34:05,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:34:05,355 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:34:05,355 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:34:05,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:34:05,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:34:05,356 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:34:05,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:34:05,360 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:34:05,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:34:05,360 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:34:05,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:34:05,360 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:34:05,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:34:05,362 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:34:05,363 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:34:05,363 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:34:05,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:34:05,363 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:34:05,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:34:05,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:34:05,364 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:34:05,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:34:05,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:34:05,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:34:05,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:34:05,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:34:05,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:34:05,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:34:05,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:34:05,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:34:05,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:34:05,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:34:05,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:34:05,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:34:05,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:34:05,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 [2024-11-22 21:34:05,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:34:05,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:34:05,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:34:05,574 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:34:05,575 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:34:05,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-11-22 21:34:06,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:34:07,064 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:34:07,065 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-11-22 21:34:07,093 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7df352440/b5d65f8687414579b690451391758056/FLAGbbf94e53c [2024-11-22 21:34:07,107 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7df352440/b5d65f8687414579b690451391758056 [2024-11-22 21:34:07,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:34:07,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:34:07,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:07,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:34:07,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:34:07,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:07" (1/1) ... [2024-11-22 21:34:07,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee24e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:07, skipping insertion in model container [2024-11-22 21:34:07,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:07" (1/1) ... [2024-11-22 21:34:07,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:34:07,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:07,524 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 21:34:07,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@273dd85c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:07, skipping insertion in model container [2024-11-22 21:34:07,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:07,526 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-22 21:34:07,527 INFO L158 Benchmark]: Toolchain (without parser) took 416.27ms. Allocated memory is still 165.7MB. Free memory was 107.5MB in the beginning and 84.5MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-22 21:34:07,527 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 165.7MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:34:07,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.13ms. Allocated memory is still 165.7MB. Free memory was 107.5MB in the beginning and 84.5MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-22 21:34:07,529 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 165.7MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.13ms. Allocated memory is still 165.7MB. Free memory was 107.5MB in the beginning and 84.5MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: 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_2-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 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:34:09,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:34:09,137 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-22 21:34:09,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:34:09,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:34:09,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:34:09,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:34:09,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:34:09,172 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:34:09,172 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:34:09,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:34:09,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:34:09,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:34:09,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:34:09,173 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:34:09,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:34:09,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:34:09,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:34:09,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:34:09,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:34:09,175 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:34:09,177 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:34:09,177 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:34:09,178 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:34:09,180 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:34:09,180 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-22 21:34:09,180 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:34:09,181 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-22 21:34:09,181 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:34:09,181 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:34:09,181 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:34:09,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:34:09,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:34:09,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:34:09,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:34:09,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:34:09,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:34:09,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:34:09,182 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-22 21:34:09,183 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-22 21:34:09,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:34:09,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:34:09,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:34:09,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:34:09,184 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 [2024-11-22 21:34:09,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:34:09,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:34:09,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:34:09,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:34:09,445 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:34:09,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-11-22 21:34:10,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:34:10,960 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:34:10,960 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-11-22 21:34:10,996 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a6a6c04/0d3b4b4bdc9b4add91460a0ac8499206/FLAG887c88c8e [2024-11-22 21:34:11,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a6a6c04/0d3b4b4bdc9b4add91460a0ac8499206 [2024-11-22 21:34:11,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:34:11,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:34:11,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:11,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:34:11,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:34:11,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b7e085d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11, skipping insertion in model container [2024-11-22 21:34:11,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:34:11,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:11,751 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-22 21:34:11,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:34:11,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:11,817 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:34:11,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:11,907 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:34:11,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11 WrapperNode [2024-11-22 21:34:11,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:11,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:34:11,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:34:11,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:34:11,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,966 INFO L138 Inliner]: procedures = 249, calls = 44, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 143 [2024-11-22 21:34:11,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:34:11,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:34:11,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:34:11,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:34:11,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,995 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 21:34:11,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:12,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:12,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:12,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:12,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:12,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:34:12,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:34:12,028 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:34:12,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:34:12,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:12,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:34:12,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:34:12,059 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 21:34:12,061 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 21:34:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-22 21:34:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-22 21:34:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-22 21:34:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-22 21:34:12,091 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-22 21:34:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 21:34:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 21:34:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 21:34:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-22 21:34:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-22 21:34:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-22 21:34:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-22 21:34:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-22 21:34:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-22 21:34:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 21:34:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:34:12,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 21:34:12,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 21:34:12,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 21:34:12,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:34:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:34:12,094 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 21:34:12,306 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:34:12,307 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:34:12,666 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:34:12,666 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:34:12,791 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:34:12,795 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 21:34:12,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:12 BoogieIcfgContainer [2024-11-22 21:34:12,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:34:12,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:34:12,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:34:12,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:34:12,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:34:11" (1/3) ... [2024-11-22 21:34:12,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f12abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:12, skipping insertion in model container [2024-11-22 21:34:12,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (2/3) ... [2024-11-22 21:34:12,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f12abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:12, skipping insertion in model container [2024-11-22 21:34:12,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:12" (3/3) ... [2024-11-22 21:34:12,806 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2024-11-22 21:34:12,821 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:34:12,822 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-11-22 21:34:12,822 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:34:12,871 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 21:34:12,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 126 transitions, 266 flow [2024-11-22 21:34:12,945 INFO L124 PetriNetUnfolderBase]: 18/159 cut-off events. [2024-11-22 21:34:12,947 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:34:12,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 159 events. 18/159 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 480 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2024-11-22 21:34:12,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 126 transitions, 266 flow [2024-11-22 21:34:12,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 124 transitions, 260 flow [2024-11-22 21:34:12,964 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:34:12,970 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;@293bf0f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:34:12,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-22 21:34:12,974 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:34:12,974 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-22 21:34:12,974 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:34:12,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:12,975 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-22 21:34:12,975 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 21:34:12,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:12,979 INFO L85 PathProgramCache]: Analyzing trace with hash 498015, now seen corresponding path program 1 times [2024-11-22 21:34:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:12,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376705373] [2024-11-22 21:34:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:12,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:12,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:12,992 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 21:34:12,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-22 21:34:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:13,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:34:13,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:13,147 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 21:34:13,156 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 21:34:13,157 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:13,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:13,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376705373] [2024-11-22 21:34:13,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376705373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:13,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:13,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:13,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086886561] [2024-11-22 21:34:13,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:13,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:13,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:13,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:13,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-11-22 21:34:13,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 124 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 21:34:13,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:13,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-11-22 21:34:13,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:14,194 INFO L124 PetriNetUnfolderBase]: 3071/7677 cut-off events. [2024-11-22 21:34:14,194 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-22 21:34:14,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12595 conditions, 7677 events. 3071/7677 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 74029 event pairs, 407 based on Foata normal form. 588/5627 useless extension candidates. Maximal degree in co-relation 12356. Up to 4146 conditions per place. [2024-11-22 21:34:14,237 INFO L140 encePairwiseOnDemand]: 108/126 looper letters, 78 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-11-22 21:34:14,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 124 transitions, 420 flow [2024-11-22 21:34:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:14,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2024-11-22 21:34:14,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-11-22 21:34:14,249 INFO L175 Difference]: Start difference. First operand has 116 places, 124 transitions, 260 flow. Second operand 3 states and 234 transitions. [2024-11-22 21:34:14,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 124 transitions, 420 flow [2024-11-22 21:34:14,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 124 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:34:14,256 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 212 flow [2024-11-22 21:34:14,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2024-11-22 21:34:14,261 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -12 predicate places. [2024-11-22 21:34:14,262 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 212 flow [2024-11-22 21:34:14,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 21:34:14,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:14,263 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-22 21:34:14,268 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 21:34:14,463 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 21:34:14,464 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 21:34:14,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:14,465 INFO L85 PathProgramCache]: Analyzing trace with hash 498016, now seen corresponding path program 1 times [2024-11-22 21:34:14,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:14,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174880996] [2024-11-22 21:34:14,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:14,466 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 21:34:14,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:14,468 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 21:34:14,468 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 21:34:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:14,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:34:14,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:14,587 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 21:34:14,594 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 21:34:14,594 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:14,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:14,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174880996] [2024-11-22 21:34:14,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174880996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:14,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:14,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:14,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962682017] [2024-11-22 21:34:14,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:14,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:14,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:14,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:14,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:14,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-11-22 21:34:14,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 21:34:14,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:14,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-11-22 21:34:14,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:15,366 INFO L124 PetriNetUnfolderBase]: 3071/7673 cut-off events. [2024-11-22 21:34:15,366 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-22 21:34:15,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12708 conditions, 7673 events. 3071/7673 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 73950 event pairs, 407 based on Foata normal form. 2/5037 useless extension candidates. Maximal degree in co-relation 1475. Up to 4146 conditions per place. [2024-11-22 21:34:15,405 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 76 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-11-22 21:34:15,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 120 transitions, 404 flow [2024-11-22 21:34:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:15,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:15,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-11-22 21:34:15,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5978835978835979 [2024-11-22 21:34:15,409 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 212 flow. Second operand 3 states and 226 transitions. [2024-11-22 21:34:15,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 120 transitions, 404 flow [2024-11-22 21:34:15,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 120 transitions, 400 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:15,414 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 204 flow [2024-11-22 21:34:15,414 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2024-11-22 21:34:15,414 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -16 predicate places. [2024-11-22 21:34:15,415 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 204 flow [2024-11-22 21:34:15,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 21:34:15,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:15,415 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-22 21:34:15,420 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 21:34:15,616 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 21:34:15,617 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 21:34:15,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:15,617 INFO L85 PathProgramCache]: Analyzing trace with hash 15437293, now seen corresponding path program 1 times [2024-11-22 21:34:15,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:15,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335694414] [2024-11-22 21:34:15,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:15,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:15,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:15,619 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 21:34:15,621 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 21:34:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:15,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:34:15,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:15,685 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 21:34:15,685 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:15,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:15,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335694414] [2024-11-22 21:34:15,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335694414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:15,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:15,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:15,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441642991] [2024-11-22 21:34:15,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:15,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:15,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:15,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:15,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:15,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 126 [2024-11-22 21:34:15,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 21:34:15,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:15,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 126 [2024-11-22 21:34:15,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:16,218 INFO L124 PetriNetUnfolderBase]: 3070/5968 cut-off events. [2024-11-22 21:34:16,218 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2024-11-22 21:34:16,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11003 conditions, 5968 events. 3070/5968 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 44328 event pairs, 2805 based on Foata normal form. 1/4093 useless extension candidates. Maximal degree in co-relation 5422. Up to 4464 conditions per place. [2024-11-22 21:34:16,239 INFO L140 encePairwiseOnDemand]: 123/126 looper letters, 76 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2024-11-22 21:34:16,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 119 transitions, 402 flow [2024-11-22 21:34:16,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:16,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-11-22 21:34:16,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6137566137566137 [2024-11-22 21:34:16,240 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 204 flow. Second operand 3 states and 232 transitions. [2024-11-22 21:34:16,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 119 transitions, 402 flow [2024-11-22 21:34:16,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 119 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:16,243 INFO L231 Difference]: Finished difference. Result has 100 places, 97 transitions, 202 flow [2024-11-22 21:34:16,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=100, PETRI_TRANSITIONS=97} [2024-11-22 21:34:16,243 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -16 predicate places. [2024-11-22 21:34:16,244 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 97 transitions, 202 flow [2024-11-22 21:34:16,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 21:34:16,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:16,244 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:16,249 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 21:34:16,447 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 21:34:16,448 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 21:34:16,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:16,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1057546939, now seen corresponding path program 1 times [2024-11-22 21:34:16,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:16,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698399337] [2024-11-22 21:34:16,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:16,450 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 21:34:16,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:16,452 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 21:34:16,452 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 21:34:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:16,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:34:16,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:16,570 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:16,571 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:16,571 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:16,575 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 21:34:16,609 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:16,610 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:16,610 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:16,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:16,622 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 21:34:16,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:16,734 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 21:34:16,749 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 21:34:16,749 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:16,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:16,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698399337] [2024-11-22 21:34:16,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698399337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:16,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:16,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:16,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654941920] [2024-11-22 21:34:16,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:16,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:16,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:16,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:16,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:16,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-11-22 21:34:16,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 97 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 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 21:34:16,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:16,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-11-22 21:34:16,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:17,840 INFO L124 PetriNetUnfolderBase]: 3598/6890 cut-off events. [2024-11-22 21:34:17,840 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-22 21:34:17,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12743 conditions, 6890 events. 3598/6890 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 51006 event pairs, 2343 based on Foata normal form. 2/4760 useless extension candidates. Maximal degree in co-relation 11774. Up to 5605 conditions per place. [2024-11-22 21:34:17,866 INFO L140 encePairwiseOnDemand]: 115/126 looper letters, 61 selfloop transitions, 9 changer transitions 0/103 dead transitions. [2024-11-22 21:34:17,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 103 transitions, 355 flow [2024-11-22 21:34:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:34:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:34:17,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 312 transitions. [2024-11-22 21:34:17,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49523809523809526 [2024-11-22 21:34:17,868 INFO L175 Difference]: Start difference. First operand has 100 places, 97 transitions, 202 flow. Second operand 5 states and 312 transitions. [2024-11-22 21:34:17,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 103 transitions, 355 flow [2024-11-22 21:34:17,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 103 transitions, 351 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:17,876 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 224 flow [2024-11-22 21:34:17,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=224, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2024-11-22 21:34:17,877 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -19 predicate places. [2024-11-22 21:34:17,877 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 224 flow [2024-11-22 21:34:17,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 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 21:34:17,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:17,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:17,884 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 21:34:18,078 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 21:34:18,078 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:18,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:18,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1629828376, now seen corresponding path program 1 times [2024-11-22 21:34:18,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:18,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428621915] [2024-11-22 21:34:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:18,080 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 21:34:18,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:18,083 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 21:34:18,084 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 21:34:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:18,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 21:34:18,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:18,189 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 21:34:18,227 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 21:34:18,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:18,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:18,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428621915] [2024-11-22 21:34:18,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428621915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:18,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:18,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:18,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87828651] [2024-11-22 21:34:18,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:18,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:18,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:18,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:18,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:18,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-11-22 21:34:18,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 224 flow. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 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 21:34:18,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:18,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-11-22 21:34:18,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:19,219 INFO L124 PetriNetUnfolderBase]: 2554/6244 cut-off events. [2024-11-22 21:34:19,219 INFO L125 PetriNetUnfolderBase]: For 323/323 co-relation queries the response was YES. [2024-11-22 21:34:19,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10813 conditions, 6244 events. 2554/6244 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 56303 event pairs, 127 based on Foata normal form. 0/4522 useless extension candidates. Maximal degree in co-relation 5200. Up to 2287 conditions per place. [2024-11-22 21:34:19,241 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 142 selfloop transitions, 15 changer transitions 1/193 dead transitions. [2024-11-22 21:34:19,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 193 transitions, 762 flow [2024-11-22 21:34:19,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:34:19,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:34:19,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2024-11-22 21:34:19,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5257936507936508 [2024-11-22 21:34:19,243 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 224 flow. Second operand 8 states and 530 transitions. [2024-11-22 21:34:19,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 193 transitions, 762 flow [2024-11-22 21:34:19,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 193 transitions, 749 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:19,246 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 317 flow [2024-11-22 21:34:19,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=317, PETRI_PLACES=105, PETRI_TRANSITIONS=104} [2024-11-22 21:34:19,246 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -11 predicate places. [2024-11-22 21:34:19,247 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 317 flow [2024-11-22 21:34:19,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 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 21:34:19,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:19,247 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:19,257 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 (6)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:19,447 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 21:34:19,448 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:19,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:19,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1629828377, now seen corresponding path program 1 times [2024-11-22 21:34:19,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:19,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693176030] [2024-11-22 21:34:19,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:19,449 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 21:34:19,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:19,452 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 21:34:19,453 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 21:34:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:19,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 21:34:19,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:19,571 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 21:34:19,647 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 21:34:19,647 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:19,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:19,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693176030] [2024-11-22 21:34:19,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693176030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:19,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:19,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:19,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955377878] [2024-11-22 21:34:19,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:19,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:19,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:19,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:19,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-11-22 21:34:19,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 317 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 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 21:34:19,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:19,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-11-22 21:34:19,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:20,489 INFO L124 PetriNetUnfolderBase]: 1721/4277 cut-off events. [2024-11-22 21:34:20,489 INFO L125 PetriNetUnfolderBase]: For 1957/1957 co-relation queries the response was YES. [2024-11-22 21:34:20,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8613 conditions, 4277 events. 1721/4277 cut-off events. For 1957/1957 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 36154 event pairs, 143 based on Foata normal form. 450/3819 useless extension candidates. Maximal degree in co-relation 7442. Up to 1957 conditions per place. [2024-11-22 21:34:20,508 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 125 selfloop transitions, 12 changer transitions 2/176 dead transitions. [2024-11-22 21:34:20,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 176 transitions, 767 flow [2024-11-22 21:34:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:34:20,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:34:20,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 473 transitions. [2024-11-22 21:34:20,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.536281179138322 [2024-11-22 21:34:20,513 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 317 flow. Second operand 7 states and 473 transitions. [2024-11-22 21:34:20,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 176 transitions, 767 flow [2024-11-22 21:34:20,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 176 transitions, 767 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 21:34:20,523 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 375 flow [2024-11-22 21:34:20,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=375, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2024-11-22 21:34:20,523 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -2 predicate places. [2024-11-22 21:34:20,524 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 375 flow [2024-11-22 21:34:20,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 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 21:34:20,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:20,525 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:20,530 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 21:34:20,728 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 21:34:20,729 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:20,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:20,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1017481813, now seen corresponding path program 1 times [2024-11-22 21:34:20,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:20,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475535788] [2024-11-22 21:34:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:20,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:20,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:20,733 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 21:34:20,734 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 21:34:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:20,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:34:20,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:20,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:20,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:20,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:20,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475535788] [2024-11-22 21:34:20,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475535788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:20,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:20,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:20,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979411085] [2024-11-22 21:34:20,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:20,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:20,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:20,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:20,914 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 126 [2024-11-22 21:34:20,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 21:34:20,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:20,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 126 [2024-11-22 21:34:20,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:21,333 INFO L124 PetriNetUnfolderBase]: 1973/4043 cut-off events. [2024-11-22 21:34:21,333 INFO L125 PetriNetUnfolderBase]: For 3948/3948 co-relation queries the response was YES. [2024-11-22 21:34:21,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9566 conditions, 4043 events. 1973/4043 cut-off events. For 3948/3948 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 28800 event pairs, 1313 based on Foata normal form. 0/3514 useless extension candidates. Maximal degree in co-relation 8391. Up to 2465 conditions per place. [2024-11-22 21:34:21,349 INFO L140 encePairwiseOnDemand]: 117/126 looper letters, 80 selfloop transitions, 6 changer transitions 0/115 dead transitions. [2024-11-22 21:34:21,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 115 transitions, 571 flow [2024-11-22 21:34:21,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:21,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:21,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-11-22 21:34:21,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-22 21:34:21,353 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 375 flow. Second operand 3 states and 210 transitions. [2024-11-22 21:34:21,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 115 transitions, 571 flow [2024-11-22 21:34:21,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 115 transitions, 557 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:34:21,359 INFO L231 Difference]: Finished difference. Result has 107 places, 101 transitions, 363 flow [2024-11-22 21:34:21,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=107, PETRI_TRANSITIONS=101} [2024-11-22 21:34:21,360 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -9 predicate places. [2024-11-22 21:34:21,360 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 101 transitions, 363 flow [2024-11-22 21:34:21,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 21:34:21,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:21,361 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:21,367 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 (8)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:21,564 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 21:34:21,565 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:21,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:21,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1017481812, now seen corresponding path program 1 times [2024-11-22 21:34:21,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:21,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618048065] [2024-11-22 21:34:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:21,566 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 21:34:21,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:21,569 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 21:34:21,569 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 21:34:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:21,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:34:21,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:21,671 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 21:34:21,743 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 21:34:21,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:21,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:21,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618048065] [2024-11-22 21:34:21,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618048065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:21,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:21,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:21,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500092221] [2024-11-22 21:34:21,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:21,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:21,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:21,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:21,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:21,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-11-22 21:34:21,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 101 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 21:34:21,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:21,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-11-22 21:34:21,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:22,323 INFO L124 PetriNetUnfolderBase]: 1721/3566 cut-off events. [2024-11-22 21:34:22,324 INFO L125 PetriNetUnfolderBase]: For 3318/3318 co-relation queries the response was YES. [2024-11-22 21:34:22,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8500 conditions, 3566 events. 1721/3566 cut-off events. For 3318/3318 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 24818 event pairs, 959 based on Foata normal form. 146/3223 useless extension candidates. Maximal degree in co-relation 7325. Up to 1747 conditions per place. [2024-11-22 21:34:22,338 INFO L140 encePairwiseOnDemand]: 119/126 looper letters, 91 selfloop transitions, 6 changer transitions 0/123 dead transitions. [2024-11-22 21:34:22,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 123 transitions, 615 flow [2024-11-22 21:34:22,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:22,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2024-11-22 21:34:22,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2024-11-22 21:34:22,339 INFO L175 Difference]: Start difference. First operand has 107 places, 101 transitions, 363 flow. Second operand 3 states and 225 transitions. [2024-11-22 21:34:22,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 123 transitions, 615 flow [2024-11-22 21:34:22,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 123 transitions, 601 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:22,346 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 383 flow [2024-11-22 21:34:22,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2024-11-22 21:34:22,347 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -8 predicate places. [2024-11-22 21:34:22,347 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 383 flow [2024-11-22 21:34:22,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 21:34:22,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:22,347 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:22,353 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 (9)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:22,548 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 21:34:22,548 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 21:34:22,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:22,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1398577977, now seen corresponding path program 1 times [2024-11-22 21:34:22,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:22,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326976536] [2024-11-22 21:34:22,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:22,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:22,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:22,550 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 21:34:22,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-22 21:34:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:22,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 21:34:22,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:22,662 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 21:34:22,739 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 21:34:22,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:22,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:22,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326976536] [2024-11-22 21:34:22,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326976536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:22,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:22,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:22,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900062059] [2024-11-22 21:34:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:22,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:22,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:22,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:22,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:22,932 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-11-22 21:34:22,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 383 flow. Second operand has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 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 21:34:22,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:22,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-11-22 21:34:22,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:23,432 INFO L124 PetriNetUnfolderBase]: 1301/2852 cut-off events. [2024-11-22 21:34:23,432 INFO L125 PetriNetUnfolderBase]: For 2525/2525 co-relation queries the response was YES. [2024-11-22 21:34:23,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6838 conditions, 2852 events. 1301/2852 cut-off events. For 2525/2525 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 19437 event pairs, 93 based on Foata normal form. 0/2623 useless extension candidates. Maximal degree in co-relation 5956. Up to 1488 conditions per place. [2024-11-22 21:34:23,439 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 116 selfloop transitions, 16 changer transitions 1/165 dead transitions. [2024-11-22 21:34:23,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 165 transitions, 903 flow [2024-11-22 21:34:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:34:23,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:34:23,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 455 transitions. [2024-11-22 21:34:23,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2024-11-22 21:34:23,441 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 383 flow. Second operand 7 states and 455 transitions. [2024-11-22 21:34:23,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 165 transitions, 903 flow [2024-11-22 21:34:23,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 165 transitions, 893 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:34:23,447 INFO L231 Difference]: Finished difference. Result has 115 places, 109 transitions, 481 flow [2024-11-22 21:34:23,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=481, PETRI_PLACES=115, PETRI_TRANSITIONS=109} [2024-11-22 21:34:23,449 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -1 predicate places. [2024-11-22 21:34:23,449 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 109 transitions, 481 flow [2024-11-22 21:34:23,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 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 21:34:23,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:23,450 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:23,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:23,650 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 21:34:23,650 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 21:34:23,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:23,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1398577978, now seen corresponding path program 1 times [2024-11-22 21:34:23,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:23,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059133026] [2024-11-22 21:34:23,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:23,651 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 21:34:23,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:23,654 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 21:34:23,654 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 21:34:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:23,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 21:34:23,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:23,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-22 21:34:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:23,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:23,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059133026] [2024-11-22 21:34:23,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059133026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:23,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:23,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:23,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300945238] [2024-11-22 21:34:23,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:23,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:23,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:23,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:23,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:23,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-11-22 21:34:23,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 109 transitions, 481 flow. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 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 21:34:23,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:23,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-11-22 21:34:23,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:24,422 INFO L124 PetriNetUnfolderBase]: 1070/2326 cut-off events. [2024-11-22 21:34:24,422 INFO L125 PetriNetUnfolderBase]: For 2796/2796 co-relation queries the response was YES. [2024-11-22 21:34:24,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5955 conditions, 2326 events. 1070/2326 cut-off events. For 2796/2796 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 15288 event pairs, 153 based on Foata normal form. 65/2328 useless extension candidates. Maximal degree in co-relation 5145. Up to 794 conditions per place. [2024-11-22 21:34:24,430 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 119 selfloop transitions, 21 changer transitions 0/170 dead transitions. [2024-11-22 21:34:24,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 170 transitions, 996 flow [2024-11-22 21:34:24,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:34:24,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:34:24,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 497 transitions. [2024-11-22 21:34:24,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4930555555555556 [2024-11-22 21:34:24,431 INFO L175 Difference]: Start difference. First operand has 115 places, 109 transitions, 481 flow. Second operand 8 states and 497 transitions. [2024-11-22 21:34:24,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 170 transitions, 996 flow [2024-11-22 21:34:24,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 170 transitions, 993 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:34:24,437 INFO L231 Difference]: Finished difference. Result has 126 places, 115 transitions, 606 flow [2024-11-22 21:34:24,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=606, PETRI_PLACES=126, PETRI_TRANSITIONS=115} [2024-11-22 21:34:24,438 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 10 predicate places. [2024-11-22 21:34:24,438 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 115 transitions, 606 flow [2024-11-22 21:34:24,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 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 21:34:24,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:24,438 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:24,443 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 (11)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:24,638 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 21:34:24,639 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:24,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash 593749676, now seen corresponding path program 1 times [2024-11-22 21:34:24,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:24,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65244098] [2024-11-22 21:34:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:24,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:24,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:24,640 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 21:34:24,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-22 21:34:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:24,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 21:34:24,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:24,783 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 21:34:24,787 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 21:34:24,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:24,915 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 21:34:24,926 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:34:24,926 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 21:34:24,940 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 21:34:24,940 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:24,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:24,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65244098] [2024-11-22 21:34:24,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65244098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:24,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:24,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:24,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598208651] [2024-11-22 21:34:24,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:24,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:34:24,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:24,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:34:24,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:34:25,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 126 [2024-11-22 21:34:25,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 115 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:25,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:25,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 126 [2024-11-22 21:34:25,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:25,953 INFO L124 PetriNetUnfolderBase]: 1229/2618 cut-off events. [2024-11-22 21:34:25,953 INFO L125 PetriNetUnfolderBase]: For 5365/5365 co-relation queries the response was YES. [2024-11-22 21:34:25,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7751 conditions, 2618 events. 1229/2618 cut-off events. For 5365/5365 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17832 event pairs, 320 based on Foata normal form. 27/2634 useless extension candidates. Maximal degree in co-relation 6772. Up to 745 conditions per place. [2024-11-22 21:34:25,961 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 136 selfloop transitions, 21 changer transitions 0/189 dead transitions. [2024-11-22 21:34:25,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 189 transitions, 1218 flow [2024-11-22 21:34:25,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:34:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:34:25,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 536 transitions. [2024-11-22 21:34:25,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47266313932980597 [2024-11-22 21:34:25,963 INFO L175 Difference]: Start difference. First operand has 126 places, 115 transitions, 606 flow. Second operand 9 states and 536 transitions. [2024-11-22 21:34:25,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 189 transitions, 1218 flow [2024-11-22 21:34:25,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 189 transitions, 1190 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 21:34:25,975 INFO L231 Difference]: Finished difference. Result has 127 places, 113 transitions, 620 flow [2024-11-22 21:34:25,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=127, PETRI_TRANSITIONS=113} [2024-11-22 21:34:25,976 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 11 predicate places. [2024-11-22 21:34:25,976 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 113 transitions, 620 flow [2024-11-22 21:34:25,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:34:25,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:25,977 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:25,983 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 21:34:26,180 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 21:34:26,181 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 21:34:26,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash 440053222, now seen corresponding path program 1 times [2024-11-22 21:34:26,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:26,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393947569] [2024-11-22 21:34:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:26,182 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 21:34:26,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:26,184 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 21:34:26,185 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 21:34:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:26,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 21:34:26,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:26,338 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 21:34:26,342 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 21:34:26,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:26,470 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 21:34:26,478 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:34:26,479 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 21:34:26,492 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 21:34:26,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:26,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:26,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393947569] [2024-11-22 21:34:26,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393947569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:26,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:26,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:26,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668747614] [2024-11-22 21:34:26,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:26,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:34:26,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:26,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:34:26,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:34:26,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 126 [2024-11-22 21:34:26,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 113 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 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 21:34:26,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:26,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 126 [2024-11-22 21:34:26,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:27,470 INFO L124 PetriNetUnfolderBase]: 1476/3063 cut-off events. [2024-11-22 21:34:27,470 INFO L125 PetriNetUnfolderBase]: For 6586/6586 co-relation queries the response was YES. [2024-11-22 21:34:27,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9501 conditions, 3063 events. 1476/3063 cut-off events. For 6586/6586 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 21637 event pairs, 498 based on Foata normal form. 24/3079 useless extension candidates. Maximal degree in co-relation 6839. Up to 701 conditions per place. [2024-11-22 21:34:27,482 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 133 selfloop transitions, 21 changer transitions 0/186 dead transitions. [2024-11-22 21:34:27,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 186 transitions, 1247 flow [2024-11-22 21:34:27,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:34:27,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:34:27,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 530 transitions. [2024-11-22 21:34:27,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4673721340388007 [2024-11-22 21:34:27,484 INFO L175 Difference]: Start difference. First operand has 127 places, 113 transitions, 620 flow. Second operand 9 states and 530 transitions. [2024-11-22 21:34:27,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 186 transitions, 1247 flow [2024-11-22 21:34:27,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 186 transitions, 1195 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-22 21:34:27,493 INFO L231 Difference]: Finished difference. Result has 125 places, 111 transitions, 614 flow [2024-11-22 21:34:27,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=614, PETRI_PLACES=125, PETRI_TRANSITIONS=111} [2024-11-22 21:34:27,494 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 9 predicate places. [2024-11-22 21:34:27,494 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 111 transitions, 614 flow [2024-11-22 21:34:27,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 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 21:34:27,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:27,495 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 21:34:27,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:27,695 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 21:34:27,695 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:27,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:27,696 INFO L85 PathProgramCache]: Analyzing trace with hash 681152799, now seen corresponding path program 1 times [2024-11-22 21:34:27,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:27,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105459283] [2024-11-22 21:34:27,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:27,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:27,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:27,699 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 21:34:27,699 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 21:34:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:27,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:34:27,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:27,867 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:27,868 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:27,868 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:27,871 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 21:34:27,904 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:27,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:27,910 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 21:34:27,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:27,970 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 21:34:27,983 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 21:34:27,983 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:27,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:27,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105459283] [2024-11-22 21:34:27,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105459283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:27,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:27,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:27,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957867406] [2024-11-22 21:34:27,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:27,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:27,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:27,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:27,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:28,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-11-22 21:34:28,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 111 transitions, 614 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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 21:34:28,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:28,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-11-22 21:34:28,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:29,790 INFO L124 PetriNetUnfolderBase]: 1952/3758 cut-off events. [2024-11-22 21:34:29,790 INFO L125 PetriNetUnfolderBase]: For 8703/8703 co-relation queries the response was YES. [2024-11-22 21:34:29,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12054 conditions, 3758 events. 1952/3758 cut-off events. For 8703/8703 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 26288 event pairs, 1070 based on Foata normal form. 70/3814 useless extension candidates. Maximal degree in co-relation 8993. Up to 2868 conditions per place. [2024-11-22 21:34:29,806 INFO L140 encePairwiseOnDemand]: 116/126 looper letters, 109 selfloop transitions, 23 changer transitions 0/160 dead transitions. [2024-11-22 21:34:29,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 160 transitions, 1137 flow [2024-11-22 21:34:29,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:34:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:34:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 389 transitions. [2024-11-22 21:34:29,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5145502645502645 [2024-11-22 21:34:29,807 INFO L175 Difference]: Start difference. First operand has 125 places, 111 transitions, 614 flow. Second operand 6 states and 389 transitions. [2024-11-22 21:34:29,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 160 transitions, 1137 flow [2024-11-22 21:34:29,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 160 transitions, 1092 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-22 21:34:29,818 INFO L231 Difference]: Finished difference. Result has 128 places, 134 transitions, 820 flow [2024-11-22 21:34:29,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=820, PETRI_PLACES=128, PETRI_TRANSITIONS=134} [2024-11-22 21:34:29,819 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 12 predicate places. [2024-11-22 21:34:29,819 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 134 transitions, 820 flow [2024-11-22 21:34:29,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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 21:34:29,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:29,819 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 21:34:29,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-22 21:34:30,023 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 21:34:30,023 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 21:34:30,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:30,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1603139404, now seen corresponding path program 1 times [2024-11-22 21:34:30,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:30,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301372840] [2024-11-22 21:34:30,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:30,024 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 21:34:30,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:30,026 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 21:34:30,027 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 21:34:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:30,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:34:30,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:30,188 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:30,188 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:30,188 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:30,189 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 21:34:30,254 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:30,255 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 21:34:30,263 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 21:34:30,263 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:30,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:30,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301372840] [2024-11-22 21:34:30,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301372840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:30,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:30,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:30,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346995951] [2024-11-22 21:34:30,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:30,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:30,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:30,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:30,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:30,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 126 [2024-11-22 21:34:30,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 134 transitions, 820 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 21:34:30,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:30,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 126 [2024-11-22 21:34:30,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:31,492 INFO L124 PetriNetUnfolderBase]: 2168/4270 cut-off events. [2024-11-22 21:34:31,492 INFO L125 PetriNetUnfolderBase]: For 11920/11926 co-relation queries the response was YES. [2024-11-22 21:34:31,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15003 conditions, 4270 events. 2168/4270 cut-off events. For 11920/11926 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 31149 event pairs, 1110 based on Foata normal form. 108/4364 useless extension candidates. Maximal degree in co-relation 13773. Up to 3008 conditions per place. [2024-11-22 21:34:31,509 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 114 selfloop transitions, 35 changer transitions 0/178 dead transitions. [2024-11-22 21:34:31,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 178 transitions, 1432 flow [2024-11-22 21:34:31,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:34:31,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:34:31,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 334 transitions. [2024-11-22 21:34:31,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5301587301587302 [2024-11-22 21:34:31,514 INFO L175 Difference]: Start difference. First operand has 128 places, 134 transitions, 820 flow. Second operand 5 states and 334 transitions. [2024-11-22 21:34:31,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 178 transitions, 1432 flow [2024-11-22 21:34:31,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 178 transitions, 1412 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-11-22 21:34:31,533 INFO L231 Difference]: Finished difference. Result has 135 places, 153 transitions, 1130 flow [2024-11-22 21:34:31,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1130, PETRI_PLACES=135, PETRI_TRANSITIONS=153} [2024-11-22 21:34:31,533 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 19 predicate places. [2024-11-22 21:34:31,533 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 153 transitions, 1130 flow [2024-11-22 21:34:31,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 21:34:31,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:31,534 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 21:34:31,544 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 21:34:31,734 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 21:34:31,734 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 21:34:31,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:31,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1842184571, now seen corresponding path program 1 times [2024-11-22 21:34:31,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:31,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606846768] [2024-11-22 21:34:31,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:31,735 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 21:34:31,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:31,737 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 21:34:31,738 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 (16)] Waiting until timeout for monitored process [2024-11-22 21:34:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:31,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 21:34:31,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:31,997 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_79| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79| (_ bv0 1)) |c_#valid|))) is different from true [2024-11-22 21:34:32,006 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 21:34:32,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:32,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:32,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606846768] [2024-11-22 21:34:32,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606846768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:32,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:32,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:32,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949529461] [2024-11-22 21:34:32,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:32,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:32,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:32,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:32,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-22 21:34:32,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 126 [2024-11-22 21:34:32,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 153 transitions, 1130 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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 21:34:32,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:32,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 126 [2024-11-22 21:34:32,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:32,894 INFO L124 PetriNetUnfolderBase]: 2225/4313 cut-off events. [2024-11-22 21:34:32,894 INFO L125 PetriNetUnfolderBase]: For 15993/15993 co-relation queries the response was YES. [2024-11-22 21:34:32,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17011 conditions, 4313 events. 2225/4313 cut-off events. For 15993/15993 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 30783 event pairs, 847 based on Foata normal form. 0/4303 useless extension candidates. Maximal degree in co-relation 15669. Up to 1947 conditions per place. [2024-11-22 21:34:32,917 INFO L140 encePairwiseOnDemand]: 104/126 looper letters, 133 selfloop transitions, 36 changer transitions 4/191 dead transitions. [2024-11-22 21:34:32,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 191 transitions, 1721 flow [2024-11-22 21:34:32,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:34:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:34:32,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 254 transitions. [2024-11-22 21:34:32,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4031746031746032 [2024-11-22 21:34:32,919 INFO L175 Difference]: Start difference. First operand has 135 places, 153 transitions, 1130 flow. Second operand 5 states and 254 transitions. [2024-11-22 21:34:32,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 191 transitions, 1721 flow [2024-11-22 21:34:32,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 191 transitions, 1707 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-22 21:34:32,951 INFO L231 Difference]: Finished difference. Result has 142 places, 167 transitions, 1379 flow [2024-11-22 21:34:32,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1379, PETRI_PLACES=142, PETRI_TRANSITIONS=167} [2024-11-22 21:34:32,951 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 26 predicate places. [2024-11-22 21:34:32,952 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 167 transitions, 1379 flow [2024-11-22 21:34:32,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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 21:34:32,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:32,952 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 21:34:32,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-22 21:34:33,152 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 21:34:33,153 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 21:34:33,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:33,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1620575929, now seen corresponding path program 1 times [2024-11-22 21:34:33,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:33,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411830498] [2024-11-22 21:34:33,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:33,154 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 21:34:33,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:33,155 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 21:34:33,156 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 21:34:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:33,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:34:33,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:33,318 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 21:34:33,328 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 21:34:33,328 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:33,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:33,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411830498] [2024-11-22 21:34:33,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411830498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:33,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:33,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:33,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941577316] [2024-11-22 21:34:33,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:33,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:33,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:33,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:33,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:33,409 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 126 [2024-11-22 21:34:33,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 167 transitions, 1379 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 21:34:33,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:33,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 126 [2024-11-22 21:34:33,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:34,026 INFO L124 PetriNetUnfolderBase]: 2116/4138 cut-off events. [2024-11-22 21:34:34,026 INFO L125 PetriNetUnfolderBase]: For 19652/19674 co-relation queries the response was YES. [2024-11-22 21:34:34,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18425 conditions, 4138 events. 2116/4138 cut-off events. For 19652/19674 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 29808 event pairs, 1014 based on Foata normal form. 1/4086 useless extension candidates. Maximal degree in co-relation 17064. Up to 3479 conditions per place. [2024-11-22 21:34:34,054 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 137 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2024-11-22 21:34:34,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 173 transitions, 1719 flow [2024-11-22 21:34:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:34,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-22 21:34:34,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5529100529100529 [2024-11-22 21:34:34,055 INFO L175 Difference]: Start difference. First operand has 142 places, 167 transitions, 1379 flow. Second operand 3 states and 209 transitions. [2024-11-22 21:34:34,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 173 transitions, 1719 flow [2024-11-22 21:34:34,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 173 transitions, 1635 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-22 21:34:34,104 INFO L231 Difference]: Finished difference. Result has 138 places, 165 transitions, 1301 flow [2024-11-22 21:34:34,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1291, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1301, PETRI_PLACES=138, PETRI_TRANSITIONS=165} [2024-11-22 21:34:34,104 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 22 predicate places. [2024-11-22 21:34:34,104 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 165 transitions, 1301 flow [2024-11-22 21:34:34,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 21:34:34,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:34,105 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 21:34:34,111 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 21:34:34,305 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 21:34:34,305 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 21:34:34,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:34,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1620575930, now seen corresponding path program 1 times [2024-11-22 21:34:34,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:34,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798396341] [2024-11-22 21:34:34,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:34,306 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 21:34:34,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:34,307 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 21:34:34,310 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 21:34:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:34,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:34:34,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:34,451 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 21:34:34,459 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 21:34:34,459 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:34,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:34,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798396341] [2024-11-22 21:34:34,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798396341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:34,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:34,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:34,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745816501] [2024-11-22 21:34:34,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:34,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:34,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:34,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:34,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:34,515 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 126 [2024-11-22 21:34:34,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 165 transitions, 1301 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 21:34:34,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:34,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 126 [2024-11-22 21:34:34,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:35,064 INFO L124 PetriNetUnfolderBase]: 2116/4131 cut-off events. [2024-11-22 21:34:35,065 INFO L125 PetriNetUnfolderBase]: For 18164/18204 co-relation queries the response was YES. [2024-11-22 21:34:35,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18164 conditions, 4131 events. 2116/4131 cut-off events. For 18164/18204 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 29594 event pairs, 1014 based on Foata normal form. 7/4085 useless extension candidates. Maximal degree in co-relation 17521. Up to 3479 conditions per place. [2024-11-22 21:34:35,091 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 137 selfloop transitions, 5 changer transitions 0/171 dead transitions. [2024-11-22 21:34:35,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 171 transitions, 1641 flow [2024-11-22 21:34:35,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:35,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-22 21:34:35,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5529100529100529 [2024-11-22 21:34:35,094 INFO L175 Difference]: Start difference. First operand has 138 places, 165 transitions, 1301 flow. Second operand 3 states and 209 transitions. [2024-11-22 21:34:35,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 171 transitions, 1641 flow [2024-11-22 21:34:35,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 171 transitions, 1631 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:35,139 INFO L231 Difference]: Finished difference. Result has 136 places, 163 transitions, 1297 flow [2024-11-22 21:34:35,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1297, PETRI_PLACES=136, PETRI_TRANSITIONS=163} [2024-11-22 21:34:35,139 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 20 predicate places. [2024-11-22 21:34:35,140 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 163 transitions, 1297 flow [2024-11-22 21:34:35,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 21:34:35,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:35,140 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] [2024-11-22 21:34:35,146 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 21:34:35,340 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 21:34:35,340 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 21:34:35,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:35,341 INFO L85 PathProgramCache]: Analyzing trace with hash 79962136, now seen corresponding path program 1 times [2024-11-22 21:34:35,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:35,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274395313] [2024-11-22 21:34:35,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:35,342 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 21:34:35,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:35,343 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 21:34:35,344 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 21:34:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:35,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:34:35,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:35,491 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 21:34:35,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:35,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:35,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274395313] [2024-11-22 21:34:35,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274395313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:35,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:35,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:35,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404863261] [2024-11-22 21:34:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:35,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:35,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:35,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:35,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:35,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 126 [2024-11-22 21:34:35,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 163 transitions, 1297 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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 21:34:35,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:35,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 126 [2024-11-22 21:34:35,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:35,710 INFO L124 PetriNetUnfolderBase]: 225/436 cut-off events. [2024-11-22 21:34:35,710 INFO L125 PetriNetUnfolderBase]: For 1707/1707 co-relation queries the response was YES. [2024-11-22 21:34:35,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1910 conditions, 436 events. 225/436 cut-off events. For 1707/1707 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1491 event pairs, 31 based on Foata normal form. 36/471 useless extension candidates. Maximal degree in co-relation 1881. Up to 226 conditions per place. [2024-11-22 21:34:35,712 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 64 selfloop transitions, 9 changer transitions 0/96 dead transitions. [2024-11-22 21:34:35,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 96 transitions, 709 flow [2024-11-22 21:34:35,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2024-11-22 21:34:35,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5218253968253969 [2024-11-22 21:34:35,713 INFO L175 Difference]: Start difference. First operand has 136 places, 163 transitions, 1297 flow. Second operand 4 states and 263 transitions. [2024-11-22 21:34:35,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 96 transitions, 709 flow [2024-11-22 21:34:35,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 96 transitions, 490 flow, removed 50 selfloop flow, removed 31 redundant places. [2024-11-22 21:34:35,716 INFO L231 Difference]: Finished difference. Result has 88 places, 76 transitions, 282 flow [2024-11-22 21:34:35,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=88, PETRI_TRANSITIONS=76} [2024-11-22 21:34:35,717 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -28 predicate places. [2024-11-22 21:34:35,717 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 282 flow [2024-11-22 21:34:35,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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 21:34:35,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:35,717 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:35,724 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 (19)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:35,918 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 21:34:35,918 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 21:34:35,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:35,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1331630624, now seen corresponding path program 1 times [2024-11-22 21:34:35,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:35,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002449137] [2024-11-22 21:34:35,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:35,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:34:35,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:35,920 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 21:34:35,922 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 21:34:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:36,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:34:36,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:36,152 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 21:34:36,157 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 21:34:36,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:36,304 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 21:34:36,312 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:34:36,313 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 21:34:36,330 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 21:34:36,331 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:36,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:36,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002449137] [2024-11-22 21:34:36,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002449137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:36,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:36,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:36,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174268391] [2024-11-22 21:34:36,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:36,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:36,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:36,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:36,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:36,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 126 [2024-11-22 21:34:36,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 76 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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 21:34:36,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:36,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 126 [2024-11-22 21:34:36,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:36,530 INFO L124 PetriNetUnfolderBase]: 225/430 cut-off events. [2024-11-22 21:34:36,530 INFO L125 PetriNetUnfolderBase]: For 562/562 co-relation queries the response was YES. [2024-11-22 21:34:36,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1330 conditions, 430 events. 225/430 cut-off events. For 562/562 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1356 event pairs, 175 based on Foata normal form. 1/430 useless extension candidates. Maximal degree in co-relation 1318. Up to 412 conditions per place. [2024-11-22 21:34:36,532 INFO L140 encePairwiseOnDemand]: 116/126 looper letters, 52 selfloop transitions, 4 changer transitions 0/70 dead transitions. [2024-11-22 21:34:36,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 70 transitions, 382 flow [2024-11-22 21:34:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:36,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:36,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 199 transitions. [2024-11-22 21:34:36,533 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3948412698412698 [2024-11-22 21:34:36,533 INFO L175 Difference]: Start difference. First operand has 88 places, 76 transitions, 282 flow. Second operand 4 states and 199 transitions. [2024-11-22 21:34:36,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 70 transitions, 382 flow [2024-11-22 21:34:36,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 70 transitions, 364 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:36,535 INFO L231 Difference]: Finished difference. Result has 82 places, 70 transitions, 260 flow [2024-11-22 21:34:36,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2024-11-22 21:34:36,535 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -34 predicate places. [2024-11-22 21:34:36,535 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 260 flow [2024-11-22 21:34:36,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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 21:34:36,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:36,535 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] [2024-11-22 21:34:36,544 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 21:34:36,736 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 21:34:36,736 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:36,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:36,736 INFO L85 PathProgramCache]: Analyzing trace with hash -640423387, now seen corresponding path program 1 times [2024-11-22 21:34:36,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:36,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395780428] [2024-11-22 21:34:36,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:36,737 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 21:34:36,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:36,738 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 21:34:36,739 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 21:34:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:36,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:34:36,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:36,981 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 21:34:37,033 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-22 21:34:37,033 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 21:34:37,060 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 21:34:37,062 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 21:34:37,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:37,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:37,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395780428] [2024-11-22 21:34:37,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395780428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:37,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:37,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:37,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571937906] [2024-11-22 21:34:37,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:37,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:37,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:37,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:37,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:37,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 126 [2024-11-22 21:34:37,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 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 21:34:37,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:37,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 126 [2024-11-22 21:34:37,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:37,309 INFO L124 PetriNetUnfolderBase]: 225/429 cut-off events. [2024-11-22 21:34:37,309 INFO L125 PetriNetUnfolderBase]: For 404/404 co-relation queries the response was YES. [2024-11-22 21:34:37,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 429 events. 225/429 cut-off events. For 404/404 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1362 event pairs, 127 based on Foata normal form. 1/430 useless extension candidates. Maximal degree in co-relation 1247. Up to 294 conditions per place. [2024-11-22 21:34:37,311 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 56 selfloop transitions, 7 changer transitions 0/77 dead transitions. [2024-11-22 21:34:37,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 77 transitions, 416 flow [2024-11-22 21:34:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:37,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:37,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-11-22 21:34:37,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-11-22 21:34:37,312 INFO L175 Difference]: Start difference. First operand has 82 places, 70 transitions, 260 flow. Second operand 4 states and 219 transitions. [2024-11-22 21:34:37,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 77 transitions, 416 flow [2024-11-22 21:34:37,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 77 transitions, 408 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:37,313 INFO L231 Difference]: Finished difference. Result has 81 places, 69 transitions, 264 flow [2024-11-22 21:34:37,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=81, PETRI_TRANSITIONS=69} [2024-11-22 21:34:37,314 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -35 predicate places. [2024-11-22 21:34:37,314 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 69 transitions, 264 flow [2024-11-22 21:34:37,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 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 21:34:37,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:37,314 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] [2024-11-22 21:34:37,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2024-11-22 21:34:37,515 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 21:34:37,515 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:37,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:37,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1037197301, now seen corresponding path program 1 times [2024-11-22 21:34:37,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:37,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229261313] [2024-11-22 21:34:37,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:37,516 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 21:34:37,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:37,517 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 21:34:37,518 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 21:34:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:37,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 21:34:37,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:37,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:37,907 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:37,907 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:37,908 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 21:34:37,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:37,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 45 [2024-11-22 21:34:38,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:38,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 45 [2024-11-22 21:34:38,087 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 21:34:38,088 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:38,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:38,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229261313] [2024-11-22 21:34:38,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229261313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:38,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:38,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 21:34:38,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737313809] [2024-11-22 21:34:38,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:38,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 21:34:38,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:38,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 21:34:38,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:34:38,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 126 [2024-11-22 21:34:38,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 69 transitions, 264 flow. Second operand has 8 states, 8 states have (on average 52.875) internal successors, (423), 8 states have internal predecessors, (423), 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 21:34:38,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:38,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 126 [2024-11-22 21:34:38,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:39,425 INFO L124 PetriNetUnfolderBase]: 312/600 cut-off events. [2024-11-22 21:34:39,425 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-11-22 21:34:39,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1768 conditions, 600 events. 312/600 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2255 event pairs, 15 based on Foata normal form. 1/601 useless extension candidates. Maximal degree in co-relation 1756. Up to 162 conditions per place. [2024-11-22 21:34:39,427 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 85 selfloop transitions, 24 changer transitions 0/122 dead transitions. [2024-11-22 21:34:39,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 122 transitions, 678 flow [2024-11-22 21:34:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 21:34:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 21:34:39,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 587 transitions. [2024-11-22 21:34:39,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4658730158730159 [2024-11-22 21:34:39,429 INFO L175 Difference]: Start difference. First operand has 81 places, 69 transitions, 264 flow. Second operand 10 states and 587 transitions. [2024-11-22 21:34:39,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 122 transitions, 678 flow [2024-11-22 21:34:39,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 122 transitions, 658 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:39,431 INFO L231 Difference]: Finished difference. Result has 90 places, 78 transitions, 370 flow [2024-11-22 21:34:39,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=370, PETRI_PLACES=90, PETRI_TRANSITIONS=78} [2024-11-22 21:34:39,431 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -26 predicate places. [2024-11-22 21:34:39,431 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 78 transitions, 370 flow [2024-11-22 21:34:39,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 52.875) internal successors, (423), 8 states have internal predecessors, (423), 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 21:34:39,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:39,432 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] [2024-11-22 21:34:39,440 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 21:34:39,632 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 21:34:39,632 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-22 21:34:39,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:39,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1010337511, now seen corresponding path program 2 times [2024-11-22 21:34:39,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:34:39,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775453972] [2024-11-22 21:34:39,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:34:39,633 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 21:34:39,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:34:39,634 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 21:34:39,635 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 21:34:39,869 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:34:39,869 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:39,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-22 21:34:39,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:40,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:40,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:40,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:34:40,030 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:40,030 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:34:40,031 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 21:34:40,092 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 0 case distinctions, treesize of input 69 treesize of output 45 [2024-11-22 21:34:40,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:40,144 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 65 treesize of output 85 [2024-11-22 21:34:43,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:34:43,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-22 21:34:43,930 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 21:34:43,930 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:34:43,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:34:43,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775453972] [2024-11-22 21:34:43,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775453972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:43,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:43,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 21:34:43,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925739333] [2024-11-22 21:34:43,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:43,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 21:34:43,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:34:43,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 21:34:43,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=68, Unknown=2, NotChecked=0, Total=90 [2024-11-22 21:34:45,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:47,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:49,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:50,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:53,017 WARN L539 Checker$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 21:34:54,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:56,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:34:58,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:00,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:02,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:04,743 WARN L539 Checker$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 21:35:06,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:08,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:10,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:12,227 WARN L539 Checker$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 21:35:14,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:15,998 WARN L539 Checker$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 21:35:17,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:19,973 WARN L539 Checker$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 21:35:21,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:23,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:25,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:27,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:29,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:31,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:33,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:33,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 126 [2024-11-22 21:35:33,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 78 transitions, 370 flow. Second operand has 10 states, 10 states have (on average 25.3) internal successors, (253), 10 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:35:33,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:35:33,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 126 [2024-11-22 21:35:33,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:35:37,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:40,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:43,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 21:35:44,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]