./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:42:06,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:42:06,384 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:42:06,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:42:06,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:42:06,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:42:06,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:42:06,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:42:06,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:42:06,404 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:42:06,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:42:06,405 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:42:06,406 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:42:06,406 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:42:06,406 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:42:06,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:42:06,407 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:42:06,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:42:06,407 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:42:06,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:42:06,408 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:42:06,408 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:42:06,409 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:42:06,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:42:06,409 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:42:06,409 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:42:06,410 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:42:06,410 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:42:06,410 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:42:06,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:42:06,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:42:06,411 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:42:06,411 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:42:06,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:42:06,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:42:06,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:42:06,412 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:42:06,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:42:06,412 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:42:06,413 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:42:06,413 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:42:06,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:42:06,415 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-10-11 19:42:06,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:42:06,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:42:06,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:42:06,603 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:42:06,603 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:42:06,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-10-11 19:42:07,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:42:08,213 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:42:08,213 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-10-11 19:42:08,247 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/bf25b6810/7c9c71b791824c71ab74b5147d1c906b/FLAGe1228d754 [2024-10-11 19:42:08,521 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/bf25b6810/7c9c71b791824c71ab74b5147d1c906b [2024-10-11 19:42:08,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:42:08,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:42:08,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:42:08,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:42:08,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:42:08,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:42:08" (1/1) ... [2024-10-11 19:42:08,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3befdce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:08, skipping insertion in model container [2024-10-11 19:42:08,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:42:08" (1/1) ... [2024-10-11 19:42:08,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:42:08,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:42:08,965 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) [2024-10-11 19:42:08,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@bc8b275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:08, skipping insertion in model container [2024-10-11 19:42:08,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:42:08,966 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 19:42:08,968 INFO L158 Benchmark]: Toolchain (without parser) took 439.43ms. Allocated memory is still 163.6MB. Free memory was 87.7MB in the beginning and 65.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:42:08,968 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:42:08,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.64ms. Allocated memory is still 163.6MB. Free memory was 87.7MB in the beginning and 65.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:42:08,969 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.64ms. Allocated memory is still 163.6MB. Free memory was 87.7MB in the beginning and 65.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3902]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:42:10,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:42:10,826 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:42:10,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:42:10,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:42:10,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:42:10,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:42:10,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:42:10,862 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:42:10,862 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:42:10,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:42:10,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:42:10,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:42:10,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:42:10,863 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:42:10,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:42:10,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:42:10,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:42:10,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:42:10,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:42:10,865 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:42:10,868 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:42:10,868 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:42:10,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:42:10,871 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:42:10,871 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:42:10,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:42:10,871 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:42:10,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:42:10,872 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:42:10,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:42:10,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:42:10,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:42:10,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:42:10,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:42:10,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:42:10,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:42:10,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:42:10,873 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:42:10,873 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:42:10,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:42:10,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:42:10,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:42:10,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:42:10,874 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:42:10,874 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-10-11 19:42:11,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:42:11,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:42:11,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:42:11,174 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:42:11,174 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:42:11,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-10-11 19:42:12,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:42:12,947 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:42:12,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-10-11 19:42:12,979 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0ba9c8384/9506a241b0c7483393168a7d052b58f3/FLAG133074274 [2024-10-11 19:42:13,004 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0ba9c8384/9506a241b0c7483393168a7d052b58f3 [2024-10-11 19:42:13,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:42:13,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:42:13,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:42:13,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:42:13,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:42:13,021 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355761b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13, skipping insertion in model container [2024-10-11 19:42:13,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:42:13,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:42:13,525 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 19:42:13,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:42:13,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:42:13,595 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:42:13,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:42:13,716 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:42:13,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13 WrapperNode [2024-10-11 19:42:13,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:42:13,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:42:13,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:42:13,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:42:13,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,760 INFO L138 Inliner]: procedures = 249, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 142 [2024-10-11 19:42:13,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:42:13,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:42:13,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:42:13,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:42:13,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,793 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]. [2024-10-11 19:42:13,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:42:13,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:42:13,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:42:13,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:42:13,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (1/1) ... [2024-10-11 19:42:13,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:42:13,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:42:13,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:42:13,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:42:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 19:42:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 19:42:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 19:42:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-11 19:42:13,883 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-11 19:42:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 19:42:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 19:42:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 19:42:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 19:42:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 19:42:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:42:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 19:42:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 19:42:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 19:42:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 19:42:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:42:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 19:42:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 19:42:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 19:42:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:42:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:42:13,887 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:42:14,096 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:42:14,098 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:42:14,436 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:42:14,436 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:42:14,564 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:42:14,564 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:42:14,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:42:14 BoogieIcfgContainer [2024-10-11 19:42:14,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:42:14,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:42:14,574 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:42:14,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:42:14,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:42:13" (1/3) ... [2024-10-11 19:42:14,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5ee9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:42:14, skipping insertion in model container [2024-10-11 19:42:14,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:13" (2/3) ... [2024-10-11 19:42:14,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5ee9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:42:14, skipping insertion in model container [2024-10-11 19:42:14,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:42:14" (3/3) ... [2024-10-11 19:42:14,591 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2024-10-11 19:42:14,626 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:42:14,626 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-10-11 19:42:14,626 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:42:14,686 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 19:42:14,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 132 transitions, 278 flow [2024-10-11 19:42:14,786 INFO L124 PetriNetUnfolderBase]: 18/165 cut-off events. [2024-10-11 19:42:14,787 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 19:42:14,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 165 events. 18/165 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 521 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2024-10-11 19:42:14,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 132 transitions, 278 flow [2024-10-11 19:42:14,796 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 130 transitions, 272 flow [2024-10-11 19:42:14,805 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:42:14,810 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;@140d9112, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:42:14,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-10-11 19:42:14,815 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:42:14,815 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-11 19:42:14,815 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:42:14,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:14,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-11 19:42:14,816 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)] === [2024-10-11 19:42:14,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash 492833, now seen corresponding path program 1 times [2024-10-11 19:42:14,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:14,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523349781] [2024-10-11 19:42:14,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:14,833 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 [2024-10-11 19:42:14,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:14,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:14,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:14,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:42:14,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:14,995 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 [2024-10-11 19:42:15,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:15,007 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:15,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:15,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523349781] [2024-10-11 19:42:15,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523349781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:15,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:15,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:15,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963273471] [2024-10-11 19:42:15,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:15,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:15,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:15,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:15,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:15,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-10-11 19:42:15,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:15,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:15,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-10-11 19:42:15,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:15,642 INFO L124 PetriNetUnfolderBase]: 707/2028 cut-off events. [2024-10-11 19:42:15,642 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-11 19:42:15,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3244 conditions, 2028 events. 707/2028 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15833 event pairs, 95 based on Foata normal form. 156/1875 useless extension candidates. Maximal degree in co-relation 3071. Up to 1002 conditions per place. [2024-10-11 19:42:15,673 INFO L140 encePairwiseOnDemand]: 114/132 looper letters, 54 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-10-11 19:42:15,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 118 transitions, 360 flow [2024-10-11 19:42:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:15,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:15,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-10-11 19:42:15,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-11 19:42:15,691 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 272 flow. Second operand 3 states and 264 transitions. [2024-10-11 19:42:15,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 118 transitions, 360 flow [2024-10-11 19:42:15,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 352 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:42:15,699 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-10-11 19:42:15,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-10-11 19:42:15,704 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -12 predicate places. [2024-10-11 19:42:15,704 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-10-11 19:42:15,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:15,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:15,705 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-11 19:42:15,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:15,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:15,909 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)] === [2024-10-11 19:42:15,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash 492834, now seen corresponding path program 1 times [2024-10-11 19:42:15,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:15,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544462253] [2024-10-11 19:42:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:15,911 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 [2024-10-11 19:42:15,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:15,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:15,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:16,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:42:16,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:16,036 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 [2024-10-11 19:42:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:16,043 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:16,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:16,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544462253] [2024-10-11 19:42:16,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544462253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:16,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:16,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:16,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526924213] [2024-10-11 19:42:16,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:16,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:16,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:16,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:16,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:16,185 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2024-10-11 19:42:16,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:16,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:16,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2024-10-11 19:42:16,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:16,447 INFO L124 PetriNetUnfolderBase]: 707/2024 cut-off events. [2024-10-11 19:42:16,448 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-11 19:42:16,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3261 conditions, 2024 events. 707/2024 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15812 event pairs, 95 based on Foata normal form. 2/1717 useless extension candidates. Maximal degree in co-relation 488. Up to 1002 conditions per place. [2024-10-11 19:42:16,457 INFO L140 encePairwiseOnDemand]: 126/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-10-11 19:42:16,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 114 transitions, 344 flow [2024-10-11 19:42:16,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:16,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2024-10-11 19:42:16,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465 [2024-10-11 19:42:16,461 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 256 transitions. [2024-10-11 19:42:16,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 114 transitions, 344 flow [2024-10-11 19:42:16,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 114 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:16,465 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 216 flow [2024-10-11 19:42:16,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2024-10-11 19:42:16,466 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-10-11 19:42:16,466 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 216 flow [2024-10-11 19:42:16,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:16,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:16,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 19:42:16,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:16,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:16,671 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)] === [2024-10-11 19:42:16,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:16,672 INFO L85 PathProgramCache]: Analyzing trace with hash 15275921, now seen corresponding path program 1 times [2024-10-11 19:42:16,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:16,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507899104] [2024-10-11 19:42:16,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:16,674 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 [2024-10-11 19:42:16,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:16,678 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:16,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:16,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:42:16,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:16,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:16,750 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:16,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:16,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507899104] [2024-10-11 19:42:16,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507899104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:16,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:16,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:16,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760533622] [2024-10-11 19:42:16,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:16,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:16,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:16,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:16,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:16,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-10-11 19:42:16,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:16,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:16,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-10-11 19:42:16,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:16,988 INFO L124 PetriNetUnfolderBase]: 706/1707 cut-off events. [2024-10-11 19:42:16,988 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-10-11 19:42:16,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 1707 events. 706/1707 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11757 event pairs, 645 based on Foata normal form. 1/1455 useless extension candidates. Maximal degree in co-relation 1061. Up to 1092 conditions per place. [2024-10-11 19:42:16,996 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-10-11 19:42:16,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 113 transitions, 342 flow [2024-10-11 19:42:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:16,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-10-11 19:42:16,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6616161616161617 [2024-10-11 19:42:16,998 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 216 flow. Second operand 3 states and 262 transitions. [2024-10-11 19:42:16,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 113 transitions, 342 flow [2024-10-11 19:42:16,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 113 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:17,000 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 214 flow [2024-10-11 19:42:17,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-10-11 19:42:17,001 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-10-11 19:42:17,001 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 214 flow [2024-10-11 19:42:17,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:17,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:17,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:17,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:17,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:17,203 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)] === [2024-10-11 19:42:17,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:17,204 INFO L85 PathProgramCache]: Analyzing trace with hash 918000892, now seen corresponding path program 1 times [2024-10-11 19:42:17,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:17,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663091755] [2024-10-11 19:42:17,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:17,205 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 [2024-10-11 19:42:17,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:17,207 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:17,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:17,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:42:17,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:17,344 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:17,344 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:17,346 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:17,354 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 [2024-10-11 19:42:17,408 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:17,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:17,421 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 [2024-10-11 19:42:17,543 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:17,543 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 137 treesize of output 53 [2024-10-11 19:42:17,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:17,565 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:17,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:17,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663091755] [2024-10-11 19:42:17,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663091755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:17,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:17,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:42:17,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295391540] [2024-10-11 19:42:17,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:17,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:17,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:17,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:17,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:17,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-10-11 19:42:17,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:17,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:17,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-10-11 19:42:17,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:18,390 INFO L124 PetriNetUnfolderBase]: 1153/2678 cut-off events. [2024-10-11 19:42:18,390 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-10-11 19:42:18,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 2678 events. 1153/2678 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 19494 event pairs, 684 based on Foata normal form. 1/2357 useless extension candidates. Maximal degree in co-relation 4313. Up to 1845 conditions per place. [2024-10-11 19:42:18,430 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 52 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2024-10-11 19:42:18,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 110 transitions, 347 flow [2024-10-11 19:42:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:42:18,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:42:18,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 380 transitions. [2024-10-11 19:42:18,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-10-11 19:42:18,431 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 214 flow. Second operand 5 states and 380 transitions. [2024-10-11 19:42:18,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 110 transitions, 347 flow [2024-10-11 19:42:18,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 110 transitions, 343 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:18,435 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 236 flow [2024-10-11 19:42:18,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-10-11 19:42:18,436 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-10-11 19:42:18,437 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 236 flow [2024-10-11 19:42:18,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:18,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:18,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:18,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:18,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:18,642 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:18,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:18,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2144599793, now seen corresponding path program 1 times [2024-10-11 19:42:18,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:18,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416434039] [2024-10-11 19:42:18,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:18,644 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 [2024-10-11 19:42:18,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:18,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:18,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:18,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:42:18,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:18,780 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:18,780 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:18,781 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:18,782 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 [2024-10-11 19:42:18,851 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:18,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-10-11 19:42:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:18,863 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:18,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:18,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416434039] [2024-10-11 19:42:18,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416434039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:18,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:18,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:18,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64459391] [2024-10-11 19:42:18,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:18,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:42:18,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:18,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:42:18,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:42:18,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-10-11 19:42:18,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:18,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:18,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-10-11 19:42:18,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:19,405 INFO L124 PetriNetUnfolderBase]: 1153/2675 cut-off events. [2024-10-11 19:42:19,405 INFO L125 PetriNetUnfolderBase]: For 221/227 co-relation queries the response was YES. [2024-10-11 19:42:19,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4861 conditions, 2675 events. 1153/2675 cut-off events. For 221/227 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 19524 event pairs, 684 based on Foata normal form. 7/2360 useless extension candidates. Maximal degree in co-relation 1969. Up to 1845 conditions per place. [2024-10-11 19:42:19,415 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 51 selfloop transitions, 6 changer transitions 0/107 dead transitions. [2024-10-11 19:42:19,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 107 transitions, 359 flow [2024-10-11 19:42:19,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:42:19,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:42:19,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2024-10-11 19:42:19,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2024-10-11 19:42:19,416 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 236 flow. Second operand 4 states and 318 transitions. [2024-10-11 19:42:19,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 107 transitions, 359 flow [2024-10-11 19:42:19,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 107 transitions, 351 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:42:19,418 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 234 flow [2024-10-11 19:42:19,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-10-11 19:42:19,419 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -19 predicate places. [2024-10-11 19:42:19,419 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 234 flow [2024-10-11 19:42:19,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:19,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:19,419 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:19,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-11 19:42:19,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:19,620 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:19,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:19,621 INFO L85 PathProgramCache]: Analyzing trace with hash -859869638, now seen corresponding path program 1 times [2024-10-11 19:42:19,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:19,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349626754] [2024-10-11 19:42:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:19,622 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 [2024-10-11 19:42:19,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:19,624 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:19,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:19,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:42:19,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:19,717 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 [2024-10-11 19:42:19,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:19,748 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:19,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:19,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349626754] [2024-10-11 19:42:19,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349626754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:19,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:19,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:19,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864324341] [2024-10-11 19:42:19,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:19,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:19,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:19,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:19,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:19,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2024-10-11 19:42:19,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:19,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:19,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2024-10-11 19:42:19,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:20,072 INFO L124 PetriNetUnfolderBase]: 977/2250 cut-off events. [2024-10-11 19:42:20,072 INFO L125 PetriNetUnfolderBase]: For 75/78 co-relation queries the response was YES. [2024-10-11 19:42:20,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4003 conditions, 2250 events. 977/2250 cut-off events. For 75/78 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 15591 event pairs, 746 based on Foata normal form. 0/2071 useless extension candidates. Maximal degree in co-relation 1940. Up to 1391 conditions per place. [2024-10-11 19:42:20,084 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 52 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-10-11 19:42:20,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 105 transitions, 356 flow [2024-10-11 19:42:20,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:20,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-10-11 19:42:20,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2024-10-11 19:42:20,087 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 234 flow. Second operand 3 states and 246 transitions. [2024-10-11 19:42:20,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 105 transitions, 356 flow [2024-10-11 19:42:20,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 105 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:20,089 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 226 flow [2024-10-11 19:42:20,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-10-11 19:42:20,090 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -24 predicate places. [2024-10-11 19:42:20,091 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 226 flow [2024-10-11 19:42:20,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:20,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:20,091 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:20,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:20,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:20,296 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:20,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash -859869637, now seen corresponding path program 1 times [2024-10-11 19:42:20,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:20,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086445167] [2024-10-11 19:42:20,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:20,301 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 [2024-10-11 19:42:20,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:20,305 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:20,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:20,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:42:20,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:20,419 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 [2024-10-11 19:42:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:20,474 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:20,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086445167] [2024-10-11 19:42:20,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086445167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:20,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:20,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:20,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462724195] [2024-10-11 19:42:20,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:20,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:20,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:20,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:20,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:20,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-10-11 19:42:20,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:20,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:20,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-10-11 19:42:20,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:20,828 INFO L124 PetriNetUnfolderBase]: 835/1981 cut-off events. [2024-10-11 19:42:20,828 INFO L125 PetriNetUnfolderBase]: For 117/120 co-relation queries the response was YES. [2024-10-11 19:42:20,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3543 conditions, 1981 events. 835/1981 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 13573 event pairs, 538 based on Foata normal form. 86/1876 useless extension candidates. Maximal degree in co-relation 2877. Up to 1012 conditions per place. [2024-10-11 19:42:20,837 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 63 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-10-11 19:42:20,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 112 transitions, 394 flow [2024-10-11 19:42:20,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:20,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2024-10-11 19:42:20,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-10-11 19:42:20,838 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 226 flow. Second operand 3 states and 261 transitions. [2024-10-11 19:42:20,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 112 transitions, 394 flow [2024-10-11 19:42:20,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 112 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:20,840 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 239 flow [2024-10-11 19:42:20,840 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-10-11 19:42:20,841 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -23 predicate places. [2024-10-11 19:42:20,841 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 239 flow [2024-10-11 19:42:20,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:20,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:20,841 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:20,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-11 19:42:21,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:21,044 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:21,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash -797998779, now seen corresponding path program 1 times [2024-10-11 19:42:21,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:21,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681823710] [2024-10-11 19:42:21,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:21,045 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 [2024-10-11 19:42:21,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:21,047 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:21,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:21,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 19:42:21,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:21,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:42:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:21,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:21,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:21,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681823710] [2024-10-11 19:42:21,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681823710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:21,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:21,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:21,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926497543] [2024-10-11 19:42:21,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:21,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:21,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:21,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:21,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:21,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-10-11 19:42:21,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:21,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:21,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-10-11 19:42:21,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:22,075 INFO L124 PetriNetUnfolderBase]: 1177/2694 cut-off events. [2024-10-11 19:42:22,075 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2024-10-11 19:42:22,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5052 conditions, 2694 events. 1177/2694 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 19116 event pairs, 145 based on Foata normal form. 62/2638 useless extension candidates. Maximal degree in co-relation 3206. Up to 1078 conditions per place. [2024-10-11 19:42:22,086 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 100 selfloop transitions, 15 changer transitions 1/162 dead transitions. [2024-10-11 19:42:22,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 162 transitions, 628 flow [2024-10-11 19:42:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:42:22,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:42:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 640 transitions. [2024-10-11 19:42:22,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-11 19:42:22,089 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 239 flow. Second operand 8 states and 640 transitions. [2024-10-11 19:42:22,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 162 transitions, 628 flow [2024-10-11 19:42:22,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 162 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:42:22,094 INFO L231 Difference]: Finished difference. Result has 109 places, 106 transitions, 345 flow [2024-10-11 19:42:22,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=345, PETRI_PLACES=109, PETRI_TRANSITIONS=106} [2024-10-11 19:42:22,094 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -13 predicate places. [2024-10-11 19:42:22,095 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 106 transitions, 345 flow [2024-10-11 19:42:22,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:22,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:22,095 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:22,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-11 19:42:22,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:22,299 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)] === [2024-10-11 19:42:22,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:22,300 INFO L85 PathProgramCache]: Analyzing trace with hash -797998778, now seen corresponding path program 1 times [2024-10-11 19:42:22,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:22,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871462930] [2024-10-11 19:42:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:22,300 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 [2024-10-11 19:42:22,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:22,302 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:22,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:22,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 19:42:22,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:22,416 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 [2024-10-11 19:42:22,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:22,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:22,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:22,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871462930] [2024-10-11 19:42:22,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871462930] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:22,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:22,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:22,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042109968] [2024-10-11 19:42:22,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:22,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:22,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:22,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:22,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:22,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 132 [2024-10-11 19:42:22,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 106 transitions, 345 flow. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:22,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:22,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 132 [2024-10-11 19:42:22,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:23,313 INFO L124 PetriNetUnfolderBase]: 914/2228 cut-off events. [2024-10-11 19:42:23,314 INFO L125 PetriNetUnfolderBase]: For 1017/1103 co-relation queries the response was YES. [2024-10-11 19:42:23,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 2228 events. 914/2228 cut-off events. For 1017/1103 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 15825 event pairs, 148 based on Foata normal form. 257/2410 useless extension candidates. Maximal degree in co-relation 4099. Up to 1074 conditions per place. [2024-10-11 19:42:23,323 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 89 selfloop transitions, 12 changer transitions 2/154 dead transitions. [2024-10-11 19:42:23,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 154 transitions, 659 flow [2024-10-11 19:42:23,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:42:23,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:42:23,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2024-10-11 19:42:23,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6201298701298701 [2024-10-11 19:42:23,325 INFO L175 Difference]: Start difference. First operand has 109 places, 106 transitions, 345 flow. Second operand 7 states and 573 transitions. [2024-10-11 19:42:23,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 154 transitions, 659 flow [2024-10-11 19:42:23,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 154 transitions, 659 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 19:42:23,330 INFO L231 Difference]: Finished difference. Result has 118 places, 108 transitions, 405 flow [2024-10-11 19:42:23,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=405, PETRI_PLACES=118, PETRI_TRANSITIONS=108} [2024-10-11 19:42:23,331 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -4 predicate places. [2024-10-11 19:42:23,331 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 108 transitions, 405 flow [2024-10-11 19:42:23,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:23,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:23,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:23,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-11 19:42:23,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:23,532 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)] === [2024-10-11 19:42:23,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:23,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1027020276, now seen corresponding path program 1 times [2024-10-11 19:42:23,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:23,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005494511] [2024-10-11 19:42:23,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:23,533 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 [2024-10-11 19:42:23,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:23,539 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:23,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:23,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 19:42:23,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:23,655 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 [2024-10-11 19:42:23,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:23,688 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:23,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:23,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005494511] [2024-10-11 19:42:23,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005494511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:23,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:23,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:23,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6898241] [2024-10-11 19:42:23,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:23,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:23,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:23,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:23,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:23,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-10-11 19:42:23,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 108 transitions, 405 flow. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:23,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:23,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-10-11 19:42:23,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:24,522 INFO L124 PetriNetUnfolderBase]: 1336/3053 cut-off events. [2024-10-11 19:42:24,522 INFO L125 PetriNetUnfolderBase]: For 2699/2849 co-relation queries the response was YES. [2024-10-11 19:42:24,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6754 conditions, 3053 events. 1336/3053 cut-off events. For 2699/2849 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 22205 event pairs, 340 based on Foata normal form. 98/3084 useless extension candidates. Maximal degree in co-relation 5927. Up to 1093 conditions per place. [2024-10-11 19:42:24,534 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 111 selfloop transitions, 20 changer transitions 0/179 dead transitions. [2024-10-11 19:42:24,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 179 transitions, 910 flow [2024-10-11 19:42:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:42:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:42:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 644 transitions. [2024-10-11 19:42:24,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6098484848484849 [2024-10-11 19:42:24,536 INFO L175 Difference]: Start difference. First operand has 118 places, 108 transitions, 405 flow. Second operand 8 states and 644 transitions. [2024-10-11 19:42:24,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 179 transitions, 910 flow [2024-10-11 19:42:24,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 179 transitions, 877 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 19:42:24,542 INFO L231 Difference]: Finished difference. Result has 124 places, 118 transitions, 535 flow [2024-10-11 19:42:24,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=535, PETRI_PLACES=124, PETRI_TRANSITIONS=118} [2024-10-11 19:42:24,544 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 2 predicate places. [2024-10-11 19:42:24,545 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 118 transitions, 535 flow [2024-10-11 19:42:24,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:24,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:24,546 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:24,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:24,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:24,746 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)] === [2024-10-11 19:42:24,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:24,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1027020275, now seen corresponding path program 1 times [2024-10-11 19:42:24,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:24,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202622925] [2024-10-11 19:42:24,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:24,747 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 [2024-10-11 19:42:24,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:24,750 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:24,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:24,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 19:42:24,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:24,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:42:25,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:25,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:25,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:25,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202622925] [2024-10-11 19:42:25,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202622925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:25,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:25,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:25,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713770011] [2024-10-11 19:42:25,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:25,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:25,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:25,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:25,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:25,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 132 [2024-10-11 19:42:25,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 118 transitions, 535 flow. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:25,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:25,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 132 [2024-10-11 19:42:25,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:26,204 INFO L124 PetriNetUnfolderBase]: 1002/2495 cut-off events. [2024-10-11 19:42:26,205 INFO L125 PetriNetUnfolderBase]: For 3013/3221 co-relation queries the response was YES. [2024-10-11 19:42:26,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5953 conditions, 2495 events. 1002/2495 cut-off events. For 3013/3221 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 18509 event pairs, 160 based on Foata normal form. 330/2784 useless extension candidates. Maximal degree in co-relation 5344. Up to 1228 conditions per place. [2024-10-11 19:42:26,214 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 98 selfloop transitions, 17 changer transitions 1/169 dead transitions. [2024-10-11 19:42:26,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 169 transitions, 915 flow [2024-10-11 19:42:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:42:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:42:26,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 575 transitions. [2024-10-11 19:42:26,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6222943722943723 [2024-10-11 19:42:26,219 INFO L175 Difference]: Start difference. First operand has 124 places, 118 transitions, 535 flow. Second operand 7 states and 575 transitions. [2024-10-11 19:42:26,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 169 transitions, 915 flow [2024-10-11 19:42:26,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 169 transitions, 912 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:42:26,228 INFO L231 Difference]: Finished difference. Result has 132 places, 121 transitions, 617 flow [2024-10-11 19:42:26,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=617, PETRI_PLACES=132, PETRI_TRANSITIONS=121} [2024-10-11 19:42:26,229 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2024-10-11 19:42:26,229 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 121 transitions, 617 flow [2024-10-11 19:42:26,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:26,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:26,230 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] [2024-10-11 19:42:26,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:26,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:26,431 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:26,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:26,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2035896848, now seen corresponding path program 1 times [2024-10-11 19:42:26,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:26,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270857008] [2024-10-11 19:42:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:26,432 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 [2024-10-11 19:42:26,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:26,434 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:26,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:26,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 19:42:26,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:26,608 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:26,609 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:26,609 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:26,611 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 [2024-10-11 19:42:26,645 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:26,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:26,650 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 [2024-10-11 19:42:26,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:26,708 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 [2024-10-11 19:42:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:26,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:26,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:26,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270857008] [2024-10-11 19:42:26,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270857008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:26,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:26,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:42:26,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869122809] [2024-10-11 19:42:26,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:26,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:26,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:26,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:26,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:27,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-10-11 19:42:27,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 121 transitions, 617 flow. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:27,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:27,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-10-11 19:42:27,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:29,150 INFO L124 PetriNetUnfolderBase]: 1837/3732 cut-off events. [2024-10-11 19:42:29,150 INFO L125 PetriNetUnfolderBase]: For 6542/6818 co-relation queries the response was YES. [2024-10-11 19:42:29,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10096 conditions, 3732 events. 1837/3732 cut-off events. For 6542/6818 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 26467 event pairs, 747 based on Foata normal form. 126/3814 useless extension candidates. Maximal degree in co-relation 9222. Up to 2298 conditions per place. [2024-10-11 19:42:29,167 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 109 selfloop transitions, 23 changer transitions 0/178 dead transitions. [2024-10-11 19:42:29,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 178 transitions, 1123 flow [2024-10-11 19:42:29,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:42:29,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:42:29,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2024-10-11 19:42:29,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6174242424242424 [2024-10-11 19:42:29,169 INFO L175 Difference]: Start difference. First operand has 132 places, 121 transitions, 617 flow. Second operand 6 states and 489 transitions. [2024-10-11 19:42:29,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 178 transitions, 1123 flow [2024-10-11 19:42:29,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 178 transitions, 1095 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 19:42:29,178 INFO L231 Difference]: Finished difference. Result has 136 places, 144 transitions, 823 flow [2024-10-11 19:42:29,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=823, PETRI_PLACES=136, PETRI_TRANSITIONS=144} [2024-10-11 19:42:29,179 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 14 predicate places. [2024-10-11 19:42:29,179 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 144 transitions, 823 flow [2024-10-11 19:42:29,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:29,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:29,180 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:29,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-11 19:42:29,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:29,385 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:29,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash 627256280, now seen corresponding path program 1 times [2024-10-11 19:42:29,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:29,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597730250] [2024-10-11 19:42:29,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:29,386 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 [2024-10-11 19:42:29,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:29,390 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:29,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:29,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 19:42:29,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:29,565 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 [2024-10-11 19:42:29,571 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 7 [2024-10-11 19:42:29,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:42:29,704 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 [2024-10-11 19:42:29,714 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:42:29,714 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 [2024-10-11 19:42:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:29,726 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:29,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:29,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597730250] [2024-10-11 19:42:29,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597730250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:29,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:29,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:42:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727434510] [2024-10-11 19:42:29,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:29,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:42:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:29,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:42:29,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:42:30,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2024-10-11 19:42:30,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 144 transitions, 823 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:30,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:30,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2024-10-11 19:42:30,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:31,247 INFO L124 PetriNetUnfolderBase]: 2107/4457 cut-off events. [2024-10-11 19:42:31,248 INFO L125 PetriNetUnfolderBase]: For 8936/9181 co-relation queries the response was YES. [2024-10-11 19:42:31,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13281 conditions, 4457 events. 2107/4457 cut-off events. For 8936/9181 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 33978 event pairs, 424 based on Foata normal form. 71/4436 useless extension candidates. Maximal degree in co-relation 12173. Up to 1805 conditions per place. [2024-10-11 19:42:31,271 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 146 selfloop transitions, 24 changer transitions 0/220 dead transitions. [2024-10-11 19:42:31,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 220 transitions, 1448 flow [2024-10-11 19:42:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:42:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:42:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 690 transitions. [2024-10-11 19:42:31,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5808080808080808 [2024-10-11 19:42:31,274 INFO L175 Difference]: Start difference. First operand has 136 places, 144 transitions, 823 flow. Second operand 9 states and 690 transitions. [2024-10-11 19:42:31,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 220 transitions, 1448 flow [2024-10-11 19:42:31,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 220 transitions, 1419 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:31,291 INFO L231 Difference]: Finished difference. Result has 140 places, 142 transitions, 842 flow [2024-10-11 19:42:31,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=842, PETRI_PLACES=140, PETRI_TRANSITIONS=142} [2024-10-11 19:42:31,291 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-10-11 19:42:31,291 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 142 transitions, 842 flow [2024-10-11 19:42:31,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:31,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:31,292 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:31,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:31,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:31,493 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:31,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:31,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1670382524, now seen corresponding path program 1 times [2024-10-11 19:42:31,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:31,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100000820] [2024-10-11 19:42:31,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:31,494 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 [2024-10-11 19:42:31,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:31,498 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:31,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:31,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 19:42:31,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:31,684 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 [2024-10-11 19:42:31,689 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 [2024-10-11 19:42:31,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:42:31,819 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 [2024-10-11 19:42:31,827 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:42:31,827 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 [2024-10-11 19:42:31,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:31,841 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:31,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:31,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100000820] [2024-10-11 19:42:31,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100000820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:31,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:31,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:42:31,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095096071] [2024-10-11 19:42:31,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:31,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:42:31,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:31,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:42:31,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:42:32,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2024-10-11 19:42:32,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 142 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:32,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:32,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2024-10-11 19:42:32,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:33,265 INFO L124 PetriNetUnfolderBase]: 2387/5013 cut-off events. [2024-10-11 19:42:33,265 INFO L125 PetriNetUnfolderBase]: For 11207/11550 co-relation queries the response was YES. [2024-10-11 19:42:33,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14950 conditions, 5013 events. 2387/5013 cut-off events. For 11207/11550 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 39251 event pairs, 738 based on Foata normal form. 92/5031 useless extension candidates. Maximal degree in co-relation 13868. Up to 1812 conditions per place. [2024-10-11 19:42:33,288 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 151 selfloop transitions, 24 changer transitions 0/223 dead transitions. [2024-10-11 19:42:33,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 223 transitions, 1503 flow [2024-10-11 19:42:33,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:42:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:42:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 695 transitions. [2024-10-11 19:42:33,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.585016835016835 [2024-10-11 19:42:33,291 INFO L175 Difference]: Start difference. First operand has 140 places, 142 transitions, 842 flow. Second operand 9 states and 695 transitions. [2024-10-11 19:42:33,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 223 transitions, 1503 flow [2024-10-11 19:42:33,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 223 transitions, 1445 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-11 19:42:33,308 INFO L231 Difference]: Finished difference. Result has 138 places, 140 transitions, 840 flow [2024-10-11 19:42:33,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=840, PETRI_PLACES=138, PETRI_TRANSITIONS=140} [2024-10-11 19:42:33,309 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 16 predicate places. [2024-10-11 19:42:33,309 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 140 transitions, 840 flow [2024-10-11 19:42:33,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:33,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:33,310 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] [2024-10-11 19:42:33,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-10-11 19:42:33,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:33,510 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:33,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2073608629, now seen corresponding path program 1 times [2024-10-11 19:42:33,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:33,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492097738] [2024-10-11 19:42:33,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:33,511 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 [2024-10-11 19:42:33,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:33,514 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:33,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:33,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:42:33,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:33,687 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:33,687 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:33,688 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:33,689 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 [2024-10-11 19:42:33,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:33,780 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 [2024-10-11 19:42:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:33,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:33,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:33,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492097738] [2024-10-11 19:42:33,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492097738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:33,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:33,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:33,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977245426] [2024-10-11 19:42:33,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:33,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:42:33,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:33,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:42:33,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:42:33,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-10-11 19:42:33,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 140 transitions, 840 flow. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:33,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:33,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-10-11 19:42:33,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:35,245 INFO L124 PetriNetUnfolderBase]: 2542/5265 cut-off events. [2024-10-11 19:42:35,245 INFO L125 PetriNetUnfolderBase]: For 16376/16829 co-relation queries the response was YES. [2024-10-11 19:42:35,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16846 conditions, 5265 events. 2542/5265 cut-off events. For 16376/16829 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 41272 event pairs, 1223 based on Foata normal form. 202/5391 useless extension candidates. Maximal degree in co-relation 15396. Up to 3275 conditions per place. [2024-10-11 19:42:35,271 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 114 selfloop transitions, 35 changer transitions 0/190 dead transitions. [2024-10-11 19:42:35,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 190 transitions, 1454 flow [2024-10-11 19:42:35,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:42:35,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:42:35,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 416 transitions. [2024-10-11 19:42:35,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-10-11 19:42:35,273 INFO L175 Difference]: Start difference. First operand has 138 places, 140 transitions, 840 flow. Second operand 5 states and 416 transitions. [2024-10-11 19:42:35,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 190 transitions, 1454 flow [2024-10-11 19:42:35,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 190 transitions, 1403 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-11 19:42:35,308 INFO L231 Difference]: Finished difference. Result has 139 places, 159 transitions, 1127 flow [2024-10-11 19:42:35,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1127, PETRI_PLACES=139, PETRI_TRANSITIONS=159} [2024-10-11 19:42:35,309 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2024-10-11 19:42:35,309 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 159 transitions, 1127 flow [2024-10-11 19:42:35,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:35,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:35,310 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] [2024-10-11 19:42:35,321 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:35,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:35,511 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:35,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:35,511 INFO L85 PathProgramCache]: Analyzing trace with hash -142753304, now seen corresponding path program 1 times [2024-10-11 19:42:35,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:35,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539201255] [2024-10-11 19:42:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:35,512 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 [2024-10-11 19:42:35,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:35,514 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:35,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:35,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:42:35,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:35,796 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 [2024-10-11 19:42:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:35,801 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:35,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:35,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539201255] [2024-10-11 19:42:35,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539201255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:35,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:35,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:42:35,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967194306] [2024-10-11 19:42:35,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:35,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:35,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:35,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:35,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-10-11 19:42:35,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 132 [2024-10-11 19:42:35,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 159 transitions, 1127 flow. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:35,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:35,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 132 [2024-10-11 19:42:35,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:37,036 INFO L124 PetriNetUnfolderBase]: 4002/7518 cut-off events. [2024-10-11 19:42:37,036 INFO L125 PetriNetUnfolderBase]: For 23709/23713 co-relation queries the response was YES. [2024-10-11 19:42:37,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26836 conditions, 7518 events. 4002/7518 cut-off events. For 23709/23713 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 57345 event pairs, 1765 based on Foata normal form. 1/7496 useless extension candidates. Maximal degree in co-relation 24755. Up to 3488 conditions per place. [2024-10-11 19:42:37,069 INFO L140 encePairwiseOnDemand]: 106/132 looper letters, 145 selfloop transitions, 40 changer transitions 4/209 dead transitions. [2024-10-11 19:42:37,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 209 transitions, 1773 flow [2024-10-11 19:42:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:42:37,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:42:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 310 transitions. [2024-10-11 19:42:37,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2024-10-11 19:42:37,071 INFO L175 Difference]: Start difference. First operand has 139 places, 159 transitions, 1127 flow. Second operand 5 states and 310 transitions. [2024-10-11 19:42:37,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 209 transitions, 1773 flow [2024-10-11 19:42:37,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 209 transitions, 1759 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-10-11 19:42:37,127 INFO L231 Difference]: Finished difference. Result has 146 places, 177 transitions, 1407 flow [2024-10-11 19:42:37,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1113, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1407, PETRI_PLACES=146, PETRI_TRANSITIONS=177} [2024-10-11 19:42:37,128 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 24 predicate places. [2024-10-11 19:42:37,129 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 177 transitions, 1407 flow [2024-10-11 19:42:37,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:37,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:37,129 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:37,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:37,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:37,330 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:37,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:37,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1370943766, now seen corresponding path program 1 times [2024-10-11 19:42:37,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:37,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246710583] [2024-10-11 19:42:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:37,332 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 [2024-10-11 19:42:37,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:37,334 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:37,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:37,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:42:37,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:37,470 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 [2024-10-11 19:42:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:37,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:37,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:37,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246710583] [2024-10-11 19:42:37,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246710583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:37,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:37,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:37,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936842890] [2024-10-11 19:42:37,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:37,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:37,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:37,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:37,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:37,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-10-11 19:42:37,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 177 transitions, 1407 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:37,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:37,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-10-11 19:42:37,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:38,264 INFO L124 PetriNetUnfolderBase]: 2781/5512 cut-off events. [2024-10-11 19:42:38,265 INFO L125 PetriNetUnfolderBase]: For 26396/26865 co-relation queries the response was YES. [2024-10-11 19:42:38,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22840 conditions, 5512 events. 2781/5512 cut-off events. For 26396/26865 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 42810 event pairs, 1436 based on Foata normal form. 109/5439 useless extension candidates. Maximal degree in co-relation 21319. Up to 3831 conditions per place. [2024-10-11 19:42:38,292 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/183 dead transitions. [2024-10-11 19:42:38,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 183 transitions, 1663 flow [2024-10-11 19:42:38,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:38,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-10-11 19:42:38,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-10-11 19:42:38,293 INFO L175 Difference]: Start difference. First operand has 146 places, 177 transitions, 1407 flow. Second operand 3 states and 257 transitions. [2024-10-11 19:42:38,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 183 transitions, 1663 flow [2024-10-11 19:42:38,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 183 transitions, 1575 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-10-11 19:42:38,331 INFO L231 Difference]: Finished difference. Result has 142 places, 175 transitions, 1325 flow [2024-10-11 19:42:38,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1315, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1325, PETRI_PLACES=142, PETRI_TRANSITIONS=175} [2024-10-11 19:42:38,331 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 20 predicate places. [2024-10-11 19:42:38,332 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 175 transitions, 1325 flow [2024-10-11 19:42:38,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:38,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:38,332 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:38,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-10-11 19:42:38,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:38,537 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:38,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:38,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1265102467, now seen corresponding path program 1 times [2024-10-11 19:42:38,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:38,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019478760] [2024-10-11 19:42:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:38,540 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 [2024-10-11 19:42:38,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:38,544 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:38,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:38,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:42:38,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:38,698 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 [2024-10-11 19:42:38,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:38,705 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:38,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:38,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019478760] [2024-10-11 19:42:38,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019478760] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:38,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:38,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:38,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603369595] [2024-10-11 19:42:38,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:38,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:38,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:38,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:38,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:38,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-10-11 19:42:38,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 175 transitions, 1325 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:38,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:38,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-10-11 19:42:38,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:39,498 INFO L124 PetriNetUnfolderBase]: 2781/5504 cut-off events. [2024-10-11 19:42:39,498 INFO L125 PetriNetUnfolderBase]: For 23965/24434 co-relation queries the response was YES. [2024-10-11 19:42:39,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22446 conditions, 5504 events. 2781/5504 cut-off events. For 23965/24434 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 42687 event pairs, 1436 based on Foata normal form. 109/5431 useless extension candidates. Maximal degree in co-relation 21823. Up to 3831 conditions per place. [2024-10-11 19:42:39,530 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-10-11 19:42:39,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 181 transitions, 1581 flow [2024-10-11 19:42:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:39,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:39,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-10-11 19:42:39,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-10-11 19:42:39,534 INFO L175 Difference]: Start difference. First operand has 142 places, 175 transitions, 1325 flow. Second operand 3 states and 257 transitions. [2024-10-11 19:42:39,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 181 transitions, 1581 flow [2024-10-11 19:42:39,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 181 transitions, 1571 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:39,583 INFO L231 Difference]: Finished difference. Result has 140 places, 173 transitions, 1321 flow [2024-10-11 19:42:39,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1311, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1321, PETRI_PLACES=140, PETRI_TRANSITIONS=173} [2024-10-11 19:42:39,583 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-10-11 19:42:39,584 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 173 transitions, 1321 flow [2024-10-11 19:42:39,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:39,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:39,584 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:39,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:39,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:39,784 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:39,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:39,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1161263181, now seen corresponding path program 1 times [2024-10-11 19:42:39,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:39,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191071499] [2024-10-11 19:42:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:39,786 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 [2024-10-11 19:42:39,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:39,787 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:39,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:39,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:42:39,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:39,985 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:39,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:39,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191071499] [2024-10-11 19:42:39,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191071499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:39,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:39,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:39,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293475886] [2024-10-11 19:42:39,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:39,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:42:39,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:39,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:42:39,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:42:39,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-10-11 19:42:39,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 173 transitions, 1321 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:39,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:39,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-10-11 19:42:39,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:40,221 INFO L124 PetriNetUnfolderBase]: 266/540 cut-off events. [2024-10-11 19:42:40,222 INFO L125 PetriNetUnfolderBase]: For 1911/1976 co-relation queries the response was YES. [2024-10-11 19:42:40,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2175 conditions, 540 events. 266/540 cut-off events. For 1911/1976 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2136 event pairs, 50 based on Foata normal form. 49/569 useless extension candidates. Maximal degree in co-relation 2147. Up to 269 conditions per place. [2024-10-11 19:42:40,224 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 60 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2024-10-11 19:42:40,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 100 transitions, 670 flow [2024-10-11 19:42:40,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:42:40,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:42:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2024-10-11 19:42:40,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.634469696969697 [2024-10-11 19:42:40,226 INFO L175 Difference]: Start difference. First operand has 140 places, 173 transitions, 1321 flow. Second operand 4 states and 335 transitions. [2024-10-11 19:42:40,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 100 transitions, 670 flow [2024-10-11 19:42:40,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 100 transitions, 490 flow, removed 33 selfloop flow, removed 30 redundant places. [2024-10-11 19:42:40,230 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 300 flow [2024-10-11 19:42:40,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=300, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2024-10-11 19:42:40,230 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -29 predicate places. [2024-10-11 19:42:40,231 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 300 flow [2024-10-11 19:42:40,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:40,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:40,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:40,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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)] Ended with exit code 0 [2024-10-11 19:42:40,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:40,431 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)] === [2024-10-11 19:42:40,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:40,432 INFO L85 PathProgramCache]: Analyzing trace with hash -879674172, now seen corresponding path program 1 times [2024-10-11 19:42:40,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:40,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101341645] [2024-10-11 19:42:40,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:40,433 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 [2024-10-11 19:42:40,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:40,435 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:40,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:40,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 19:42:40,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:40,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-10-11 19:42:40,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:40,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:40,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:40,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101341645] [2024-10-11 19:42:40,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101341645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:40,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:40,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:42:40,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058429312] [2024-10-11 19:42:40,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:40,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:42:40,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:40,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:42:40,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:42:40,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-10-11 19:42:40,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 300 flow. Second operand has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:40,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:40,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-10-11 19:42:40,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:41,507 INFO L124 PetriNetUnfolderBase]: 595/1232 cut-off events. [2024-10-11 19:42:41,508 INFO L125 PetriNetUnfolderBase]: For 1819/1832 co-relation queries the response was YES. [2024-10-11 19:42:41,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3573 conditions, 1232 events. 595/1232 cut-off events. For 1819/1832 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6826 event pairs, 84 based on Foata normal form. 17/1224 useless extension candidates. Maximal degree in co-relation 3561. Up to 384 conditions per place. [2024-10-11 19:42:41,512 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 106 selfloop transitions, 32 changer transitions 0/169 dead transitions. [2024-10-11 19:42:41,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 169 transitions, 957 flow [2024-10-11 19:42:41,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 19:42:41,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 19:42:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 889 transitions. [2024-10-11 19:42:41,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6122589531680441 [2024-10-11 19:42:41,516 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 300 flow. Second operand 11 states and 889 transitions. [2024-10-11 19:42:41,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 169 transitions, 957 flow [2024-10-11 19:42:41,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 169 transitions, 909 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:42:41,521 INFO L231 Difference]: Finished difference. Result has 107 places, 104 transitions, 553 flow [2024-10-11 19:42:41,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=553, PETRI_PLACES=107, PETRI_TRANSITIONS=104} [2024-10-11 19:42:41,521 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -15 predicate places. [2024-10-11 19:42:41,521 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 104 transitions, 553 flow [2024-10-11 19:42:41,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:41,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:41,522 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:41,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-10-11 19:42:41,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:41,726 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:41,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:41,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1430119404, now seen corresponding path program 2 times [2024-10-11 19:42:41,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:41,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481396331] [2024-10-11 19:42:41,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:42:41,727 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 [2024-10-11 19:42:41,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:41,730 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:41,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:41,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 19:42:41,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:42:41,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 19:42:41,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:42,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-10-11 19:42:42,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:42,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:42,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:42,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481396331] [2024-10-11 19:42:42,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481396331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:42,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:42,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:42:42,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757676405] [2024-10-11 19:42:42,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:42,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:42:42,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:42,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:42:42,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:42:42,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-10-11 19:42:42,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 104 transitions, 553 flow. Second operand has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:42,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:42,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-10-11 19:42:42,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:42,780 INFO L124 PetriNetUnfolderBase]: 664/1366 cut-off events. [2024-10-11 19:42:42,780 INFO L125 PetriNetUnfolderBase]: For 4020/4045 co-relation queries the response was YES. [2024-10-11 19:42:42,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4803 conditions, 1366 events. 664/1366 cut-off events. For 4020/4045 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7840 event pairs, 38 based on Foata normal form. 29/1374 useless extension candidates. Maximal degree in co-relation 4784. Up to 432 conditions per place. [2024-10-11 19:42:42,786 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 92 selfloop transitions, 52 changer transitions 0/175 dead transitions. [2024-10-11 19:42:42,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 175 transitions, 1318 flow [2024-10-11 19:42:42,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 19:42:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 19:42:42,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 936 transitions. [2024-10-11 19:42:42,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2024-10-11 19:42:42,792 INFO L175 Difference]: Start difference. First operand has 107 places, 104 transitions, 553 flow. Second operand 12 states and 936 transitions. [2024-10-11 19:42:42,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 175 transitions, 1318 flow [2024-10-11 19:42:42,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 175 transitions, 1262 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-11 19:42:42,801 INFO L231 Difference]: Finished difference. Result has 118 places, 127 transitions, 879 flow [2024-10-11 19:42:42,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=879, PETRI_PLACES=118, PETRI_TRANSITIONS=127} [2024-10-11 19:42:42,805 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -4 predicate places. [2024-10-11 19:42:42,806 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 127 transitions, 879 flow [2024-10-11 19:42:42,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:42,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:42,806 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:42,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-10-11 19:42:43,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:43,007 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:43,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:43,007 INFO L85 PathProgramCache]: Analyzing trace with hash 959047492, now seen corresponding path program 3 times [2024-10-11 19:42:43,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:43,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147274383] [2024-10-11 19:42:43,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:42:43,008 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 [2024-10-11 19:42:43,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:43,010 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:43,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:42:43,283 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-11 19:42:43,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:42:43,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:42:43,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:43,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:42:43,367 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-10-11 19:42:43,367 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 [2024-10-11 19:42:43,392 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 [2024-10-11 19:42:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:43,397 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:43,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:43,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147274383] [2024-10-11 19:42:43,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147274383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:43,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:43,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:42:43,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014812284] [2024-10-11 19:42:43,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:43,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:42:43,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:43,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:42:43,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:42:43,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 132 [2024-10-11 19:42:43,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 127 transitions, 879 flow. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:43,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:43,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 132 [2024-10-11 19:42:43,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:43,910 INFO L124 PetriNetUnfolderBase]: 660/1346 cut-off events. [2024-10-11 19:42:43,911 INFO L125 PetriNetUnfolderBase]: For 5574/5628 co-relation queries the response was YES. [2024-10-11 19:42:43,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5406 conditions, 1346 events. 660/1346 cut-off events. For 5574/5628 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7610 event pairs, 309 based on Foata normal form. 6/1313 useless extension candidates. Maximal degree in co-relation 5383. Up to 772 conditions per place. [2024-10-11 19:42:43,921 INFO L140 encePairwiseOnDemand]: 127/132 looper letters, 107 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-10-11 19:42:43,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 142 transitions, 1253 flow [2024-10-11 19:42:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:42:43,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:42:43,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 291 transitions. [2024-10-11 19:42:43,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5511363636363636 [2024-10-11 19:42:43,924 INFO L175 Difference]: Start difference. First operand has 118 places, 127 transitions, 879 flow. Second operand 4 states and 291 transitions. [2024-10-11 19:42:43,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 142 transitions, 1253 flow [2024-10-11 19:42:43,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 142 transitions, 1161 flow, removed 21 selfloop flow, removed 6 redundant places. [2024-10-11 19:42:43,932 INFO L231 Difference]: Finished difference. Result has 114 places, 126 transitions, 813 flow [2024-10-11 19:42:43,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=813, PETRI_PLACES=114, PETRI_TRANSITIONS=126} [2024-10-11 19:42:43,932 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -8 predicate places. [2024-10-11 19:42:43,932 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 126 transitions, 813 flow [2024-10-11 19:42:43,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:43,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:43,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:43,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:44,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:44,139 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:44,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:44,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2143376831, now seen corresponding path program 1 times [2024-10-11 19:42:44,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:44,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364344752] [2024-10-11 19:42:44,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:44,141 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 [2024-10-11 19:42:44,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:44,145 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:44,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-10-11 19:42:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:44,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 19:42:44,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:44,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-10-11 19:42:44,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:44,529 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:44,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:44,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364344752] [2024-10-11 19:42:44,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364344752] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:44,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:44,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:42:44,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932804798] [2024-10-11 19:42:44,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:44,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:42:44,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:44,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:42:44,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:42:44,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-10-11 19:42:44,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 126 transitions, 813 flow. Second operand has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:44,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:44,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-10-11 19:42:44,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:45,417 INFO L124 PetriNetUnfolderBase]: 689/1432 cut-off events. [2024-10-11 19:42:45,418 INFO L125 PetriNetUnfolderBase]: For 4953/4985 co-relation queries the response was YES. [2024-10-11 19:42:45,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5668 conditions, 1432 events. 689/1432 cut-off events. For 4953/4985 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8393 event pairs, 115 based on Foata normal form. 26/1430 useless extension candidates. Maximal degree in co-relation 5645. Up to 446 conditions per place. [2024-10-11 19:42:45,425 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 120 selfloop transitions, 58 changer transitions 0/208 dead transitions. [2024-10-11 19:42:45,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 208 transitions, 1727 flow [2024-10-11 19:42:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 19:42:45,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 19:42:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 955 transitions. [2024-10-11 19:42:45,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6029040404040404 [2024-10-11 19:42:45,427 INFO L175 Difference]: Start difference. First operand has 114 places, 126 transitions, 813 flow. Second operand 12 states and 955 transitions. [2024-10-11 19:42:45,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 208 transitions, 1727 flow [2024-10-11 19:42:45,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 208 transitions, 1699 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:42:45,437 INFO L231 Difference]: Finished difference. Result has 127 places, 148 transitions, 1232 flow [2024-10-11 19:42:45,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1232, PETRI_PLACES=127, PETRI_TRANSITIONS=148} [2024-10-11 19:42:45,437 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2024-10-11 19:42:45,438 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 148 transitions, 1232 flow [2024-10-11 19:42:45,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:45,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:45,438 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:45,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-10-11 19:42:45,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:45,642 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:45,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:45,643 INFO L85 PathProgramCache]: Analyzing trace with hash 746547989, now seen corresponding path program 2 times [2024-10-11 19:42:45,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:45,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526078922] [2024-10-11 19:42:45,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:42:45,644 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 [2024-10-11 19:42:45,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:45,648 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:45,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-10-11 19:42:45,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 19:42:45,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:42:45,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 19:42:45,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:45,936 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 [2024-10-11 19:42:45,939 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 [2024-10-11 19:42:46,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:42:46,106 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 [2024-10-11 19:42:46,113 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:42:46,114 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 [2024-10-11 19:42:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:46,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:46,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:46,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526078922] [2024-10-11 19:42:46,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526078922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:46,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:46,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:42:46,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213185913] [2024-10-11 19:42:46,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:46,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:42:46,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:46,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:42:46,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:42:46,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 132 [2024-10-11 19:42:46,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 148 transitions, 1232 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:46,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:46,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 132 [2024-10-11 19:42:46,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:46,615 INFO L124 PetriNetUnfolderBase]: 686/1404 cut-off events. [2024-10-11 19:42:46,615 INFO L125 PetriNetUnfolderBase]: For 7281/7314 co-relation queries the response was YES. [2024-10-11 19:42:46,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6175 conditions, 1404 events. 686/1404 cut-off events. For 7281/7314 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8072 event pairs, 403 based on Foata normal form. 8/1371 useless extension candidates. Maximal degree in co-relation 6147. Up to 1204 conditions per place. [2024-10-11 19:42:46,624 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 116 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2024-10-11 19:42:46,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 142 transitions, 1460 flow [2024-10-11 19:42:46,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:42:46,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:42:46,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-10-11 19:42:46,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2024-10-11 19:42:46,625 INFO L175 Difference]: Start difference. First operand has 127 places, 148 transitions, 1232 flow. Second operand 4 states and 270 transitions. [2024-10-11 19:42:46,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 142 transitions, 1460 flow [2024-10-11 19:42:46,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 142 transitions, 1337 flow, removed 37 selfloop flow, removed 5 redundant places. [2024-10-11 19:42:46,638 INFO L231 Difference]: Finished difference. Result has 119 places, 142 transitions, 1105 flow [2024-10-11 19:42:46,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1097, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1105, PETRI_PLACES=119, PETRI_TRANSITIONS=142} [2024-10-11 19:42:46,638 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -3 predicate places. [2024-10-11 19:42:46,639 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 142 transitions, 1105 flow [2024-10-11 19:42:46,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:46,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:46,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:46,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:46,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:46,843 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:46,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1247570144, now seen corresponding path program 1 times [2024-10-11 19:42:46,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:46,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371689812] [2024-10-11 19:42:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:46,845 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 [2024-10-11 19:42:46,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:46,847 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:46,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-10-11 19:42:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:47,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 19:42:47,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:47,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-10-11 19:42:47,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:47,223 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:47,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:47,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371689812] [2024-10-11 19:42:47,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371689812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:47,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:47,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:42:47,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770839095] [2024-10-11 19:42:47,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:47,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:42:47,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:47,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:42:47,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:42:47,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-10-11 19:42:47,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 142 transitions, 1105 flow. Second operand has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:47,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:47,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-10-11 19:42:47,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:47,925 INFO L124 PetriNetUnfolderBase]: 629/1316 cut-off events. [2024-10-11 19:42:47,926 INFO L125 PetriNetUnfolderBase]: For 5688/5718 co-relation queries the response was YES. [2024-10-11 19:42:47,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5410 conditions, 1316 events. 629/1316 cut-off events. For 5688/5718 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 7448 event pairs, 119 based on Foata normal form. 32/1326 useless extension candidates. Maximal degree in co-relation 5384. Up to 673 conditions per place. [2024-10-11 19:42:47,933 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 91 selfloop transitions, 64 changer transitions 0/179 dead transitions. [2024-10-11 19:42:47,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 179 transitions, 1735 flow [2024-10-11 19:42:47,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:42:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:42:47,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 786 transitions. [2024-10-11 19:42:47,934 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2024-10-11 19:42:47,934 INFO L175 Difference]: Start difference. First operand has 119 places, 142 transitions, 1105 flow. Second operand 10 states and 786 transitions. [2024-10-11 19:42:47,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 179 transitions, 1735 flow [2024-10-11 19:42:47,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 179 transitions, 1727 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:42:47,947 INFO L231 Difference]: Finished difference. Result has 130 places, 154 transitions, 1494 flow [2024-10-11 19:42:47,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1494, PETRI_PLACES=130, PETRI_TRANSITIONS=154} [2024-10-11 19:42:47,947 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 8 predicate places. [2024-10-11 19:42:47,947 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 154 transitions, 1494 flow [2024-10-11 19:42:47,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:42:47,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:47,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:47,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-10-11 19:42:48,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:42:48,149 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:48,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:48,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1812717456, now seen corresponding path program 2 times [2024-10-11 19:42:48,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:48,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557920081] [2024-10-11 19:42:48,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:42:48,150 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 [2024-10-11 19:42:48,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:48,151 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:42:48,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-10-11 19:42:48,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 19:42:48,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:42:48,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-11 19:42:48,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:48,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:42:48,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:42:48,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:42:48,613 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:48,614 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:48,615 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 [2024-10-11 19:42:48,673 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:48,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 75 [2024-10-11 19:42:51,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:51,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-10-11 19:42:51,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:51,147 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:51,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:51,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557920081] [2024-10-11 19:42:51,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557920081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:51,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:51,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 19:42:51,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185405842] [2024-10-11 19:42:51,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:51,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 19:42:51,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 19:42:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=54, Unknown=1, NotChecked=0, Total=72 [2024-10-11 19:42:53,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:42:55,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:42:57,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:00,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:02,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:04,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:07,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:09,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:11,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:14,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:16,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:19,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:21,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:23,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:25,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:28,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:29,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:31,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:33,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:35,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:38,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:40,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:42,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:44,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:46,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:49,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:49,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 132 [2024-10-11 19:43:49,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 154 transitions, 1494 flow. Second operand has 9 states, 9 states have (on average 42.111111111111114) internal successors, (379), 9 states have internal predecessors, (379), 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) [2024-10-11 19:43:49,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:43:49,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 132 [2024-10-11 19:43:49,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand