./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:03:30,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:03:30,930 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:03:30,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:03:30,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:03:31,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:03:31,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:03:31,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:03:31,007 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:03:31,007 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:03:31,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:03:31,008 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:03:31,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:03:31,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:03:31,012 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:03:31,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:03:31,013 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:03:31,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:03:31,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:03:31,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:03:31,014 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:03:31,016 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:03:31,016 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:03:31,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:03:31,017 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:03:31,017 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:03:31,017 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:03:31,017 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:03:31,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:03:31,018 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:03:31,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:03:31,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:03:31,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:03:31,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:03:31,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:03:31,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:03:31,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:03:31,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:03:31,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:03:31,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:03:31,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:03:31,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:03:31,026 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-11-10 18:03:31,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:03:31,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:03:31,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:03:31,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:03:31,359 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:03:31,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-10 18:03:33,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:03:33,421 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:03:33,422 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-10 18:03:33,452 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6381cd6/f484427cdc874f56ba0916398fb14d9d/FLAG97fe03372 [2024-11-10 18:03:33,471 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6381cd6/f484427cdc874f56ba0916398fb14d9d [2024-11-10 18:03:33,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:03:33,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:03:33,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:03:33,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:03:33,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:03:33,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:03:33" (1/1) ... [2024-11-10 18:03:33,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a44bd50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:33, skipping insertion in model container [2024-11-10 18:03:33,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:03:33" (1/1) ... [2024-11-10 18:03:33,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:03:34,131 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:03:34,153 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:03:34,165 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:03:34,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:03:34,204 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-10 18:03:34,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@638f317f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:34, skipping insertion in model container [2024-11-10 18:03:34,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:03:34,206 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-10 18:03:34,209 INFO L158 Benchmark]: Toolchain (without parser) took 729.72ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 69.4MB in the beginning and 166.6MB in the end (delta: -97.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-10 18:03:34,210 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:03:34,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 727.48ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 69.2MB in the beginning and 166.6MB in the end (delta: -97.3MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-10 18:03:34,212 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 727.48ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 69.2MB in the beginning and 166.6MB in the end (delta: -97.3MB). Peak memory consumption was 17.0MB. 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:03:36,656 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:03:36,724 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-10 18:03:36,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:03:36,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:03:36,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:03:36,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:03:36,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:03:36,785 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:03:36,785 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:03:36,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:03:36,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:03:36,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:03:36,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:03:36,788 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:03:36,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:03:36,790 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:03:36,791 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:03:36,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:03:36,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:03:36,795 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:03:36,796 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:03:36,796 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:03:36,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:03:36,796 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:03:36,797 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 18:03:36,797 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:03:36,797 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 18:03:36,797 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:03:36,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:03:36,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:03:36,798 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:03:36,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:03:36,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:03:36,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:03:36,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:03:36,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:03:36,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:03:36,799 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 18:03:36,800 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 18:03:36,800 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:03:36,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:03:36,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:03:36,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:03:36,802 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-11-10 18:03:37,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:03:37,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:03:37,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:03:37,210 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:03:37,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:03:37,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-10 18:03:39,055 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:03:39,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:03:39,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-10 18:03:39,450 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/676175293/232960a220134d4b85d7f0e1f5b73798/FLAGe4d988b44 [2024-11-10 18:03:39,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/676175293/232960a220134d4b85d7f0e1f5b73798 [2024-11-10 18:03:39,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:03:39,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:03:39,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:03:39,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:03:39,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:03:39,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:03:39" (1/1) ... [2024-11-10 18:03:39,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32487774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:39, skipping insertion in model container [2024-11-10 18:03:39,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:03:39" (1/1) ... [2024-11-10 18:03:39,780 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:03:40,208 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:03:40,229 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:03:40,236 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:03:40,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:03:40,267 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-10 18:03:40,284 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:03:40,333 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:03:40,337 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:03:40,339 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:03:40,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:03:40,353 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:03:40,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:03:40,478 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:03:40,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40 WrapperNode [2024-11-10 18:03:40,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:03:40,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:03:40,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:03:40,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:03:40,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,542 INFO L138 Inliner]: procedures = 249, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 142 [2024-11-10 18:03:40,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:03:40,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:03:40,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:03:40,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:03:40,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,605 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 2, 13]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 2, 6]. [2024-11-10 18:03:40,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,639 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:03:40,673 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:03:40,674 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:03:40,674 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:03:40,675 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (1/1) ... [2024-11-10 18:03:40,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:03:40,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:03:40,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:03:40,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:03:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-10 18:03:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-10 18:03:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-10 18:03:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-10 18:03:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-10 18:03:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 18:03:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 18:03:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-10 18:03:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-10 18:03:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-10 18:03:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 18:03:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-10 18:03:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-10 18:03:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 18:03:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 18:03:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:03:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 18:03:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 18:03:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 18:03:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:03:40,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:03:40,805 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:03:41,158 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:03:41,161 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:03:41,771 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:03:41,771 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:03:41,920 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:03:41,921 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:03:41,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:03:41 BoogieIcfgContainer [2024-11-10 18:03:41,921 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:03:41,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:03:41,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:03:41,927 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:03:41,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:03:39" (1/3) ... [2024-11-10 18:03:41,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d157b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:03:41, skipping insertion in model container [2024-11-10 18:03:41,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:40" (2/3) ... [2024-11-10 18:03:41,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d157b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:03:41, skipping insertion in model container [2024-11-10 18:03:41,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:03:41" (3/3) ... [2024-11-10 18:03:41,930 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2024-11-10 18:03:41,948 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:03:41,948 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-11-10 18:03:41,949 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:03:42,034 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 18:03:42,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 132 transitions, 278 flow [2024-11-10 18:03:42,145 INFO L124 PetriNetUnfolderBase]: 18/165 cut-off events. [2024-11-10 18:03:42,146 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 18:03:42,150 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 13. Compared 531 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2024-11-10 18:03:42,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 132 transitions, 278 flow [2024-11-10 18:03:42,156 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 130 transitions, 272 flow [2024-11-10 18:03:42,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:03:42,181 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;@8629086, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:03:42,182 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-10 18:03:42,185 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:03:42,186 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-10 18:03:42,186 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:03:42,187 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:42,188 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-10 18:03:42,188 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:42,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:42,194 INFO L85 PathProgramCache]: Analyzing trace with hash 496338, now seen corresponding path program 1 times [2024-11-10 18:03:42,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:42,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152927875] [2024-11-10 18:03:42,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:42,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:42,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:42,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:42,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-10 18:03:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:42,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:03:42,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:42,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-10 18:03:42,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:42,506 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:42,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:42,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152927875] [2024-11-10 18:03:42,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152927875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:42,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:42,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:03:42,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201357614] [2024-11-10 18:03:42,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:42,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:42,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:42,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:42,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:42,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2024-11-10 18:03:42,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:42,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:42,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2024-11-10 18:03:42,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:43,391 INFO L124 PetriNetUnfolderBase]: 767/2079 cut-off events. [2024-11-10 18:03:43,391 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-10 18:03:43,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3392 conditions, 2079 events. 767/2079 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 16081 event pairs, 95 based on Foata normal form. 156/1933 useless extension candidates. Maximal degree in co-relation 3218. Up to 1099 conditions per place. [2024-11-10 18:03:43,415 INFO L140 encePairwiseOnDemand]: 114/132 looper letters, 55 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-11-10 18:03:43,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 118 transitions, 362 flow [2024-11-10 18:03:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:43,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:43,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-10 18:03:43,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6616161616161617 [2024-11-10 18:03:43,430 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 272 flow. Second operand 3 states and 262 transitions. [2024-11-10 18:03:43,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 118 transitions, 362 flow [2024-11-10 18:03:43,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 354 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 18:03:43,439 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-11-10 18:03:43,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-11-10 18:03:43,445 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -12 predicate places. [2024-11-10 18:03:43,445 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-11-10 18:03:43,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:43,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:43,446 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-10 18:03:43,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-10 18:03:43,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:43,647 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:43,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:43,648 INFO L85 PathProgramCache]: Analyzing trace with hash 496339, now seen corresponding path program 1 times [2024-11-10 18:03:43,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:43,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454046447] [2024-11-10 18:03:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:43,649 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:43,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:43,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:43,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-10 18:03:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:43,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:03:43,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:43,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-10 18:03:43,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:43,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:43,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:43,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454046447] [2024-11-10 18:03:43,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454046447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:43,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:43,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:03:43,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713030333] [2024-11-10 18:03:43,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:43,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:43,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:43,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:43,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:44,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-10 18:03:44,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:44,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:44,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-10 18:03:44,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:44,486 INFO L124 PetriNetUnfolderBase]: 767/2075 cut-off events. [2024-11-10 18:03:44,487 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-10 18:03:44,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3409 conditions, 2075 events. 767/2075 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 16080 event pairs, 95 based on Foata normal form. 2/1775 useless extension candidates. Maximal degree in co-relation 479. Up to 1099 conditions per place. [2024-11-10 18:03:44,503 INFO L140 encePairwiseOnDemand]: 126/132 looper letters, 53 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-11-10 18:03:44,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 114 transitions, 346 flow [2024-11-10 18:03:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:44,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2024-11-10 18:03:44,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6414141414141414 [2024-11-10 18:03:44,506 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 254 transitions. [2024-11-10 18:03:44,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 114 transitions, 346 flow [2024-11-10 18:03:44,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 114 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:44,509 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 216 flow [2024-11-10 18:03:44,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2024-11-10 18:03:44,510 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-10 18:03:44,510 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 216 flow [2024-11-10 18:03:44,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:44,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:44,511 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 18:03:44,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-10 18:03:44,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:44,711 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:44,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:44,712 INFO L85 PathProgramCache]: Analyzing trace with hash 15385871, now seen corresponding path program 1 times [2024-11-10 18:03:44,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:44,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931962554] [2024-11-10 18:03:44,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:44,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:44,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:44,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:44,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-10 18:03:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:44,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 18:03:44,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:44,830 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:44,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:44,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931962554] [2024-11-10 18:03:44,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931962554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:44,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:44,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:03:44,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116347559] [2024-11-10 18:03:44,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:44,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:44,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:44,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:44,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:44,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-10 18:03:44,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:44,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:44,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-10 18:03:44,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:45,211 INFO L124 PetriNetUnfolderBase]: 766/1838 cut-off events. [2024-11-10 18:03:45,213 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-10 18:03:45,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3172 conditions, 1838 events. 766/1838 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 12750 event pairs, 705 based on Foata normal form. 1/1577 useless extension candidates. Maximal degree in co-relation 960. Up to 1189 conditions per place. [2024-11-10 18:03:45,228 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 53 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-11-10 18:03:45,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 113 transitions, 344 flow [2024-11-10 18:03:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:45,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:45,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-11-10 18:03:45,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6565656565656566 [2024-11-10 18:03:45,232 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 216 flow. Second operand 3 states and 260 transitions. [2024-11-10 18:03:45,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 113 transitions, 344 flow [2024-11-10 18:03:45,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 113 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:45,238 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 214 flow [2024-11-10 18:03:45,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-11-10 18:03:45,240 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-10 18:03:45,241 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 214 flow [2024-11-10 18:03:45,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:45,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:45,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:45,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-10 18:03:45,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:45,444 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:45,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:45,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1909568314, now seen corresponding path program 1 times [2024-11-10 18:03:45,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:45,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904670343] [2024-11-10 18:03:45,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:45,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:45,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:45,450 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:45,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-10 18:03:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:45,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 18:03:45,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:45,654 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:45,655 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:45,655 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:45,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-10 18:03:45,721 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:45,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 18:03:45,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 73 [2024-11-10 18:03:45,872 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 18:03:45,872 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 [2024-11-10 18:03:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:45,891 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:45,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:45,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904670343] [2024-11-10 18:03:45,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904670343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:45,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:45,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:03:45,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192579879] [2024-11-10 18:03:45,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:45,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:03:45,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:45,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:03:45,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:03:46,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2024-11-10 18:03:46,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:46,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:46,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2024-11-10 18:03:46,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:47,389 INFO L124 PetriNetUnfolderBase]: 1237/2837 cut-off events. [2024-11-10 18:03:47,390 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 18:03:47,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4930 conditions, 2837 events. 1237/2837 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 20541 event pairs, 740 based on Foata normal form. 1/2495 useless extension candidates. Maximal degree in co-relation 4606. Up to 1979 conditions per place. [2024-11-10 18:03:47,408 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 53 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2024-11-10 18:03:47,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 110 transitions, 349 flow [2024-11-10 18:03:47,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:03:47,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:03:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 376 transitions. [2024-11-10 18:03:47,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5696969696969697 [2024-11-10 18:03:47,411 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 214 flow. Second operand 5 states and 376 transitions. [2024-11-10 18:03:47,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 110 transitions, 349 flow [2024-11-10 18:03:47,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 110 transitions, 345 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:47,418 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 236 flow [2024-11-10 18:03:47,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-11-10 18:03:47,419 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-10 18:03:47,419 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 236 flow [2024-11-10 18:03:47,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:47,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:47,419 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:47,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-10 18:03:47,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:47,620 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:47,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1080731917, now seen corresponding path program 1 times [2024-11-10 18:03:47,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:47,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102608710] [2024-11-10 18:03:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:47,622 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 [2024-11-10 18:03:47,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:47,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:47,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-10 18:03:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:47,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:03:47,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:47,807 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:47,808 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:47,808 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:47,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-10 18:03:47,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 18:03:47,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-11-10 18:03:47,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:47,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:47,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:47,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102608710] [2024-11-10 18:03:47,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102608710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:47,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:47,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:03:47,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33576474] [2024-11-10 18:03:47,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:47,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:03:47,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:47,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:03:47,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:03:48,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-10 18:03:48,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:48,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:48,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-10 18:03:48,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:48,875 INFO L124 PetriNetUnfolderBase]: 1237/2834 cut-off events. [2024-11-10 18:03:48,875 INFO L125 PetriNetUnfolderBase]: For 231/237 co-relation queries the response was YES. [2024-11-10 18:03:48,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5168 conditions, 2834 events. 1237/2834 cut-off events. For 231/237 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 20557 event pairs, 740 based on Foata normal form. 7/2498 useless extension candidates. Maximal degree in co-relation 2144. Up to 1979 conditions per place. [2024-11-10 18:03:48,895 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 52 selfloop transitions, 6 changer transitions 0/107 dead transitions. [2024-11-10 18:03:48,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 107 transitions, 361 flow [2024-11-10 18:03:48,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:03:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:03:48,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 315 transitions. [2024-11-10 18:03:48,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5965909090909091 [2024-11-10 18:03:48,897 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 236 flow. Second operand 4 states and 315 transitions. [2024-11-10 18:03:48,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 107 transitions, 361 flow [2024-11-10 18:03:48,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 107 transitions, 353 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 18:03:48,900 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 234 flow [2024-11-10 18:03:48,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-11-10 18:03:48,901 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -19 predicate places. [2024-11-10 18:03:48,901 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 234 flow [2024-11-10 18:03:48,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:48,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:48,901 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:48,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-10 18:03:49,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:49,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:49,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:49,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1753925936, now seen corresponding path program 1 times [2024-11-10 18:03:49,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:49,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606923633] [2024-11-10 18:03:49,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:49,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:49,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:49,110 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:49,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-10 18:03:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:49,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 18:03:49,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:49,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-10 18:03:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:49,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:49,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:49,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606923633] [2024-11-10 18:03:49,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606923633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:49,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:49,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:03:49,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190705233] [2024-11-10 18:03:49,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:49,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:49,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:49,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:49,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:49,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 132 [2024-11-10 18:03:49,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:49,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:49,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 132 [2024-11-10 18:03:49,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:49,917 INFO L124 PetriNetUnfolderBase]: 1023/2275 cut-off events. [2024-11-10 18:03:49,917 INFO L125 PetriNetUnfolderBase]: For 67/70 co-relation queries the response was YES. [2024-11-10 18:03:49,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4105 conditions, 2275 events. 1023/2275 cut-off events. For 67/70 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 15457 event pairs, 736 based on Foata normal form. 0/2096 useless extension candidates. Maximal degree in co-relation 1733. Up to 1362 conditions per place. [2024-11-10 18:03:49,938 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 53 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-10 18:03:49,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 105 transitions, 358 flow [2024-11-10 18:03:49,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:49,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2024-11-10 18:03:49,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6161616161616161 [2024-11-10 18:03:49,940 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 234 flow. Second operand 3 states and 244 transitions. [2024-11-10 18:03:49,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 105 transitions, 358 flow [2024-11-10 18:03:49,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 105 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:49,942 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 226 flow [2024-11-10 18:03:49,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-11-10 18:03:49,944 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -24 predicate places. [2024-11-10 18:03:49,944 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 226 flow [2024-11-10 18:03:49,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:49,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:49,944 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:49,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-10 18:03:50,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:50,145 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:50,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:50,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1753925937, now seen corresponding path program 1 times [2024-11-10 18:03:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:50,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394338195] [2024-11-10 18:03:50,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:50,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:50,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:50,150 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:50,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-10 18:03:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:50,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 18:03:50,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:50,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-10 18:03:50,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:50,374 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:50,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:50,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394338195] [2024-11-10 18:03:50,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394338195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:50,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:50,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:03:50,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388125986] [2024-11-10 18:03:50,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:50,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:50,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:50,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:50,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:50,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2024-11-10 18:03:50,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:50,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:50,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2024-11-10 18:03:50,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:50,957 INFO L124 PetriNetUnfolderBase]: 885/2022 cut-off events. [2024-11-10 18:03:50,958 INFO L125 PetriNetUnfolderBase]: For 107/110 co-relation queries the response was YES. [2024-11-10 18:03:50,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3667 conditions, 2022 events. 885/2022 cut-off events. For 107/110 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 13554 event pairs, 531 based on Foata normal form. 88/1925 useless extension candidates. Maximal degree in co-relation 2834. Up to 992 conditions per place. [2024-11-10 18:03:50,973 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 64 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-11-10 18:03:50,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 112 transitions, 396 flow [2024-11-10 18:03:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:50,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:50,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-11-10 18:03:50,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6540404040404041 [2024-11-10 18:03:50,975 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 226 flow. Second operand 3 states and 259 transitions. [2024-11-10 18:03:50,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 112 transitions, 396 flow [2024-11-10 18:03:50,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 112 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:50,978 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 239 flow [2024-11-10 18:03:50,979 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-11-10 18:03:50,979 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -23 predicate places. [2024-11-10 18:03:50,979 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 239 flow [2024-11-10 18:03:50,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:50,980 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:50,980 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:50,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-10 18:03:51,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:51,181 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:51,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:51,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1383307382, now seen corresponding path program 1 times [2024-11-10 18:03:51,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:51,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590932429] [2024-11-10 18:03:51,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:51,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:51,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:51,184 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:51,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-10 18:03:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:51,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 18:03:51,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:51,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-10 18:03:51,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:51,477 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:51,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:51,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590932429] [2024-11-10 18:03:51,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590932429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:51,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:51,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:03:51,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136017974] [2024-11-10 18:03:51,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:51,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:03:51,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:51,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:03:51,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:03:52,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2024-11-10 18:03:52,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:52,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:52,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2024-11-10 18:03:52,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:52,807 INFO L124 PetriNetUnfolderBase]: 911/2142 cut-off events. [2024-11-10 18:03:52,808 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-10 18:03:52,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3986 conditions, 2142 events. 911/2142 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 14682 event pairs, 141 based on Foata normal form. 158/2222 useless extension candidates. Maximal degree in co-relation 2615. Up to 1054 conditions per place. [2024-11-10 18:03:52,827 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 91 selfloop transitions, 11 changer transitions 2/152 dead transitions. [2024-11-10 18:03:52,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 152 transitions, 580 flow [2024-11-10 18:03:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:03:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:03:52,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 569 transitions. [2024-11-10 18:03:52,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6158008658008658 [2024-11-10 18:03:52,830 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 239 flow. Second operand 7 states and 569 transitions. [2024-11-10 18:03:52,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 152 transitions, 580 flow [2024-11-10 18:03:52,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 152 transitions, 573 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:03:52,837 INFO L231 Difference]: Finished difference. Result has 106 places, 102 transitions, 301 flow [2024-11-10 18:03:52,837 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=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=301, PETRI_PLACES=106, PETRI_TRANSITIONS=102} [2024-11-10 18:03:52,838 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-10 18:03:52,838 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 102 transitions, 301 flow [2024-11-10 18:03:52,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:52,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:52,841 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:52,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-10 18:03:53,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:53,046 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:53,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:53,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1383307383, now seen corresponding path program 1 times [2024-11-10 18:03:53,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:53,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021048523] [2024-11-10 18:03:53,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:53,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:53,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:53,051 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:53,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-10 18:03:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:53,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 18:03:53,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:53,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-10 18:03:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:53,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:53,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:53,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021048523] [2024-11-10 18:03:53,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021048523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:53,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:53,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:03:53,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504461985] [2024-11-10 18:03:53,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:53,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:03:53,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:53,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:03:53,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:03:53,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-10 18:03:53,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 66.2) internal successors, (331), 5 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:53,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:53,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-10 18:03:53,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:54,607 INFO L124 PetriNetUnfolderBase]: 1359/2895 cut-off events. [2024-11-10 18:03:54,608 INFO L125 PetriNetUnfolderBase]: For 748/751 co-relation queries the response was YES. [2024-11-10 18:03:54,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5763 conditions, 2895 events. 1359/2895 cut-off events. For 748/751 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 19560 event pairs, 166 based on Foata normal form. 64/2821 useless extension candidates. Maximal degree in co-relation 3338. Up to 1078 conditions per place. [2024-11-10 18:03:54,626 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 102 selfloop transitions, 16 changer transitions 0/163 dead transitions. [2024-11-10 18:03:54,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 163 transitions, 671 flow [2024-11-10 18:03:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:03:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:03:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 633 transitions. [2024-11-10 18:03:54,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5994318181818182 [2024-11-10 18:03:54,630 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 301 flow. Second operand 8 states and 633 transitions. [2024-11-10 18:03:54,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 163 transitions, 671 flow [2024-11-10 18:03:54,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 163 transitions, 671 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:03:54,642 INFO L231 Difference]: Finished difference. Result has 118 places, 108 transitions, 405 flow [2024-11-10 18:03:54,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=405, PETRI_PLACES=118, PETRI_TRANSITIONS=108} [2024-11-10 18:03:54,644 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -4 predicate places. [2024-11-10 18:03:54,644 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 108 transitions, 405 flow [2024-11-10 18:03:54,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.2) internal successors, (331), 5 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:54,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:54,645 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:54,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-10 18:03:54,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:54,846 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:54,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:54,847 INFO L85 PathProgramCache]: Analyzing trace with hash 134145101, now seen corresponding path program 1 times [2024-11-10 18:03:54,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:54,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720962219] [2024-11-10 18:03:54,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:54,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:54,854 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:54,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-10 18:03:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:54,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 18:03:54,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:55,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-10 18:03:55,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:55,054 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:55,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:55,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720962219] [2024-11-10 18:03:55,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720962219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:55,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:55,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:03:55,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166589461] [2024-11-10 18:03:55,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:55,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:03:55,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:55,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:03:55,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:03:55,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-10 18:03:55,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 108 transitions, 405 flow. Second operand has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:55,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:55,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-10 18:03:55,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:56,403 INFO L124 PetriNetUnfolderBase]: 1623/3481 cut-off events. [2024-11-10 18:03:56,403 INFO L125 PetriNetUnfolderBase]: For 2876/3050 co-relation queries the response was YES. [2024-11-10 18:03:56,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7723 conditions, 3481 events. 1623/3481 cut-off events. For 2876/3050 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 24272 event pairs, 410 based on Foata normal form. 106/3489 useless extension candidates. Maximal degree in co-relation 6648. Up to 1093 conditions per place. [2024-11-10 18:03:56,429 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 113 selfloop transitions, 20 changer transitions 0/180 dead transitions. [2024-11-10 18:03:56,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 180 transitions, 916 flow [2024-11-10 18:03:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:03:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:03:56,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 638 transitions. [2024-11-10 18:03:56,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-11-10 18:03:56,432 INFO L175 Difference]: Start difference. First operand has 118 places, 108 transitions, 405 flow. Second operand 8 states and 638 transitions. [2024-11-10 18:03:56,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 180 transitions, 916 flow [2024-11-10 18:03:56,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 180 transitions, 889 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 18:03:56,440 INFO L231 Difference]: Finished difference. Result has 125 places, 118 transitions, 540 flow [2024-11-10 18:03:56,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=114, 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=540, PETRI_PLACES=125, PETRI_TRANSITIONS=118} [2024-11-10 18:03:56,442 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 3 predicate places. [2024-11-10 18:03:56,442 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 118 transitions, 540 flow [2024-11-10 18:03:56,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:56,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:56,443 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:56,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-10 18:03:56,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:56,648 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:56,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:56,649 INFO L85 PathProgramCache]: Analyzing trace with hash 134145102, now seen corresponding path program 1 times [2024-11-10 18:03:56,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:56,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760601473] [2024-11-10 18:03:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:56,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:56,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:56,653 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:56,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-10 18:03:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:56,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 18:03:56,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:56,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-10 18:03:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:56,936 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:56,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:56,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760601473] [2024-11-10 18:03:56,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760601473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:56,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:56,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:03:56,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133618941] [2024-11-10 18:03:56,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:56,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:03:56,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:56,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:03:56,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:03:57,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2024-11-10 18:03:57,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 118 transitions, 540 flow. Second operand has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:57,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:57,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2024-11-10 18:03:57,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:58,169 INFO L124 PetriNetUnfolderBase]: 1181/2734 cut-off events. [2024-11-10 18:03:58,170 INFO L125 PetriNetUnfolderBase]: For 3145/3368 co-relation queries the response was YES. [2024-11-10 18:03:58,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6627 conditions, 2734 events. 1181/2734 cut-off events. For 3145/3368 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 19459 event pairs, 235 based on Foata normal form. 375/3051 useless extension candidates. Maximal degree in co-relation 5754. Up to 1512 conditions per place. [2024-11-10 18:03:58,193 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 101 selfloop transitions, 17 changer transitions 1/171 dead transitions. [2024-11-10 18:03:58,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 171 transitions, 930 flow [2024-11-10 18:03:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:03:58,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:03:58,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 571 transitions. [2024-11-10 18:03:58,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6179653679653679 [2024-11-10 18:03:58,195 INFO L175 Difference]: Start difference. First operand has 125 places, 118 transitions, 540 flow. Second operand 7 states and 571 transitions. [2024-11-10 18:03:58,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 171 transitions, 930 flow [2024-11-10 18:03:58,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 171 transitions, 927 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:03:58,206 INFO L231 Difference]: Finished difference. Result has 133 places, 121 transitions, 623 flow [2024-11-10 18:03:58,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=124, 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=623, PETRI_PLACES=133, PETRI_TRANSITIONS=121} [2024-11-10 18:03:58,207 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 11 predicate places. [2024-11-10 18:03:58,207 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 121 transitions, 623 flow [2024-11-10 18:03:58,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:58,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:58,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:58,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-10 18:03:58,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:58,413 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:03:58,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:58,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1038997642, now seen corresponding path program 1 times [2024-11-10 18:03:58,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:03:58,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372414933] [2024-11-10 18:03:58,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:58,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:03:58,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:03:58,420 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:03:58,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-10 18:03:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:58,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 18:03:58,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:03:58,697 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:58,698 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:58,698 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:03:58,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-10 18:03:58,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 18:03:58,760 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 93 treesize of output 53 [2024-11-10 18:03:58,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 18:03:58,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2024-11-10 18:03:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:03:58,819 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:03:58,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:03:58,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372414933] [2024-11-10 18:03:58,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372414933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:58,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:58,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:03:58,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798507610] [2024-11-10 18:03:58,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:58,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:03:58,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:03:58,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:03:58,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:03:59,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-10 18:03:59,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 121 transitions, 623 flow. Second operand has 4 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:59,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:59,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-10 18:03:59,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:00,962 INFO L124 PetriNetUnfolderBase]: 1927/3901 cut-off events. [2024-11-10 18:04:00,962 INFO L125 PetriNetUnfolderBase]: For 6617/6908 co-relation queries the response was YES. [2024-11-10 18:04:00,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10545 conditions, 3901 events. 1927/3901 cut-off events. For 6617/6908 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 27542 event pairs, 895 based on Foata normal form. 136/3988 useless extension candidates. Maximal degree in co-relation 9208. Up to 2549 conditions per place. [2024-11-10 18:04:00,993 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 101 selfloop transitions, 18 changer transitions 0/165 dead transitions. [2024-11-10 18:04:00,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 165 transitions, 1053 flow [2024-11-10 18:04:00,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:04:00,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:04:00,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 412 transitions. [2024-11-10 18:04:00,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6242424242424243 [2024-11-10 18:04:00,997 INFO L175 Difference]: Start difference. First operand has 133 places, 121 transitions, 623 flow. Second operand 5 states and 412 transitions. [2024-11-10 18:04:00,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 165 transitions, 1053 flow [2024-11-10 18:04:01,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 165 transitions, 1026 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 18:04:01,010 INFO L231 Difference]: Finished difference. Result has 135 places, 135 transitions, 770 flow [2024-11-10 18:04:01,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=770, PETRI_PLACES=135, PETRI_TRANSITIONS=135} [2024-11-10 18:04:01,012 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 13 predicate places. [2024-11-10 18:04:01,012 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 135 transitions, 770 flow [2024-11-10 18:04:01,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:01,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:01,012 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:01,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-10 18:04:01,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:01,217 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:01,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:01,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1138746463, now seen corresponding path program 1 times [2024-11-10 18:04:01,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:01,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936720690] [2024-11-10 18:04:01,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:01,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:01,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:01,223 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:01,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-10 18:04:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:01,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-10 18:04:01,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:01,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-10 18:04:01,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-10 18:04:01,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-10 18:04:01,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-10 18:04:01,682 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-10 18:04:01,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-10 18:04:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:01,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:01,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:01,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936720690] [2024-11-10 18:04:01,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936720690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:01,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:01,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:04:01,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251876369] [2024-11-10 18:04:01,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:01,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:04:01,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:01,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:04:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:04:02,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 132 [2024-11-10 18:04:02,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 135 transitions, 770 flow. Second operand has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:02,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:02,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 132 [2024-11-10 18:04:02,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:03,770 INFO L124 PetriNetUnfolderBase]: 2466/4990 cut-off events. [2024-11-10 18:04:03,770 INFO L125 PetriNetUnfolderBase]: For 10326/10603 co-relation queries the response was YES. [2024-11-10 18:04:03,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15096 conditions, 4990 events. 2466/4990 cut-off events. For 10326/10603 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 36417 event pairs, 612 based on Foata normal form. 90/4984 useless extension candidates. Maximal degree in co-relation 13923. Up to 1716 conditions per place. [2024-11-10 18:04:03,811 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 141 selfloop transitions, 24 changer transitions 0/211 dead transitions. [2024-11-10 18:04:03,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 211 transitions, 1396 flow [2024-11-10 18:04:03,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:04:03,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:04:03,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 684 transitions. [2024-11-10 18:04:03,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-11-10 18:04:03,818 INFO L175 Difference]: Start difference. First operand has 135 places, 135 transitions, 770 flow. Second operand 9 states and 684 transitions. [2024-11-10 18:04:03,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 211 transitions, 1396 flow [2024-11-10 18:04:03,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 211 transitions, 1375 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-10 18:04:03,845 INFO L231 Difference]: Finished difference. Result has 139 places, 133 transitions, 797 flow [2024-11-10 18:04:03,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=797, PETRI_PLACES=139, PETRI_TRANSITIONS=133} [2024-11-10 18:04:03,846 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2024-11-10 18:04:03,847 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 133 transitions, 797 flow [2024-11-10 18:04:03,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:03,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:03,848 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:03,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-10 18:04:04,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:04,053 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:04,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:04,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1396534837, now seen corresponding path program 1 times [2024-11-10 18:04:04,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:04,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296933775] [2024-11-10 18:04:04,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:04,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:04,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:04,058 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:04,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-10 18:04:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:04,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-10 18:04:04,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:04,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-10 18:04:04,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-10 18:04:04,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-10 18:04:04,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-10 18:04:04,511 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-10 18:04:04,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-10 18:04:04,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:04,532 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:04,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:04,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296933775] [2024-11-10 18:04:04,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296933775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:04,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:04,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:04:04,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380065343] [2024-11-10 18:04:04,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:04,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:04:04,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:04,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:04:04,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:04:05,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 132 [2024-11-10 18:04:05,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 133 transitions, 797 flow. Second operand has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:05,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:05,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 132 [2024-11-10 18:04:05,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:06,558 INFO L124 PetriNetUnfolderBase]: 2967/5905 cut-off events. [2024-11-10 18:04:06,559 INFO L125 PetriNetUnfolderBase]: For 12990/13389 co-relation queries the response was YES. [2024-11-10 18:04:06,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17902 conditions, 5905 events. 2967/5905 cut-off events. For 12990/13389 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 44003 event pairs, 1076 based on Foata normal form. 112/5917 useless extension candidates. Maximal degree in co-relation 16749. Up to 1722 conditions per place. [2024-11-10 18:04:06,605 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 146 selfloop transitions, 24 changer transitions 0/214 dead transitions. [2024-11-10 18:04:06,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 214 transitions, 1460 flow [2024-11-10 18:04:06,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:04:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 18:04:06,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 689 transitions. [2024-11-10 18:04:06,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.57996632996633 [2024-11-10 18:04:06,610 INFO L175 Difference]: Start difference. First operand has 139 places, 133 transitions, 797 flow. Second operand 9 states and 689 transitions. [2024-11-10 18:04:06,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 214 transitions, 1460 flow [2024-11-10 18:04:06,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 214 transitions, 1402 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-10 18:04:06,637 INFO L231 Difference]: Finished difference. Result has 137 places, 131 transitions, 795 flow [2024-11-10 18:04:06,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=795, PETRI_PLACES=137, PETRI_TRANSITIONS=131} [2024-11-10 18:04:06,639 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 15 predicate places. [2024-11-10 18:04:06,639 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 131 transitions, 795 flow [2024-11-10 18:04:06,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:06,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:06,640 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:06,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-11-10 18:04:06,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:06,844 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:06,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:06,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1078810459, now seen corresponding path program 1 times [2024-11-10 18:04:06,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:06,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831585785] [2024-11-10 18:04:06,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:06,845 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 [2024-11-10 18:04:06,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:06,847 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:06,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-10 18:04:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:07,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 18:04:07,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:07,108 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:04:07,113 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:04:07,113 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:04:07,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-10 18:04:07,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 18:04:07,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2024-11-10 18:04:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:07,242 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:07,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831585785] [2024-11-10 18:04:07,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831585785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:07,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:07,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:04:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232215967] [2024-11-10 18:04:07,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:07,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:04:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:07,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:04:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:04:07,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-10 18:04:07,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 131 transitions, 795 flow. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:07,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:07,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-10 18:04:07,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:09,413 INFO L124 PetriNetUnfolderBase]: 3082/6192 cut-off events. [2024-11-10 18:04:09,413 INFO L125 PetriNetUnfolderBase]: For 19216/19721 co-relation queries the response was YES. [2024-11-10 18:04:09,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20155 conditions, 6192 events. 3082/6192 cut-off events. For 19216/19721 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 47936 event pairs, 1695 based on Foata normal form. 209/6320 useless extension candidates. Maximal degree in co-relation 18631. Up to 4141 conditions per place. [2024-11-10 18:04:09,463 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 111 selfloop transitions, 34 changer transitions 0/185 dead transitions. [2024-11-10 18:04:09,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 185 transitions, 1455 flow [2024-11-10 18:04:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:04:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:04:09,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 412 transitions. [2024-11-10 18:04:09,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6242424242424243 [2024-11-10 18:04:09,466 INFO L175 Difference]: Start difference. First operand has 137 places, 131 transitions, 795 flow. Second operand 5 states and 412 transitions. [2024-11-10 18:04:09,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 185 transitions, 1455 flow [2024-11-10 18:04:09,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 185 transitions, 1404 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-10 18:04:09,504 INFO L231 Difference]: Finished difference. Result has 138 places, 154 transitions, 1133 flow [2024-11-10 18:04:09,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1133, PETRI_PLACES=138, PETRI_TRANSITIONS=154} [2024-11-10 18:04:09,505 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 16 predicate places. [2024-11-10 18:04:09,505 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 154 transitions, 1133 flow [2024-11-10 18:04:09,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:09,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:09,506 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:09,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-10 18:04:09,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:09,710 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:09,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:09,710 INFO L85 PathProgramCache]: Analyzing trace with hash -916563379, now seen corresponding path program 1 times [2024-11-10 18:04:09,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:09,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458205751] [2024-11-10 18:04:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:09,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:09,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:09,714 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:09,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-10 18:04:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:09,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 18:04:09,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:10,118 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_81| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_81| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_81|)))) is different from true [2024-11-10 18:04:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:10,141 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:10,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:10,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458205751] [2024-11-10 18:04:10,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458205751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:10,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:10,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:04:10,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512325225] [2024-11-10 18:04:10,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:10,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:04:10,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:10,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:04:10,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-10 18:04:10,273 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 132 [2024-11-10 18:04:10,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 154 transitions, 1133 flow. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:10,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:10,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 132 [2024-11-10 18:04:10,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:12,079 INFO L124 PetriNetUnfolderBase]: 5100/9199 cut-off events. [2024-11-10 18:04:12,079 INFO L125 PetriNetUnfolderBase]: For 29911/29915 co-relation queries the response was YES. [2024-11-10 18:04:12,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33091 conditions, 9199 events. 5100/9199 cut-off events. For 29911/29915 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 66720 event pairs, 1946 based on Foata normal form. 1/9176 useless extension candidates. Maximal degree in co-relation 30927. Up to 4373 conditions per place. [2024-11-10 18:04:12,163 INFO L140 encePairwiseOnDemand]: 106/132 looper letters, 143 selfloop transitions, 40 changer transitions 4/206 dead transitions. [2024-11-10 18:04:12,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 206 transitions, 1786 flow [2024-11-10 18:04:12,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:04:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:04:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 308 transitions. [2024-11-10 18:04:12,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-10 18:04:12,166 INFO L175 Difference]: Start difference. First operand has 138 places, 154 transitions, 1133 flow. Second operand 5 states and 308 transitions. [2024-11-10 18:04:12,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 206 transitions, 1786 flow [2024-11-10 18:04:12,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 206 transitions, 1770 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-11-10 18:04:12,230 INFO L231 Difference]: Finished difference. Result has 145 places, 172 transitions, 1409 flow [2024-11-10 18:04:12,231 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1409, PETRI_PLACES=145, PETRI_TRANSITIONS=172} [2024-11-10 18:04:12,231 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 23 predicate places. [2024-11-10 18:04:12,232 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 172 transitions, 1409 flow [2024-11-10 18:04:12,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:12,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:12,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:12,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-10 18:04:12,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:12,433 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:12,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:12,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2000563744, now seen corresponding path program 1 times [2024-11-10 18:04:12,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:12,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475785450] [2024-11-10 18:04:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:12,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:12,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:12,438 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:12,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-10 18:04:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:12,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:04:12,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:12,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-10 18:04:12,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:12,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:12,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:12,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475785450] [2024-11-10 18:04:12,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475785450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:12,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:12,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:04:12,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162151721] [2024-11-10 18:04:12,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:12,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:04:12,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:12,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:04:12,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:04:12,797 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 132 [2024-11-10 18:04:12,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 172 transitions, 1409 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:12,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:12,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 132 [2024-11-10 18:04:12,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:14,249 INFO L124 PetriNetUnfolderBase]: 3587/6827 cut-off events. [2024-11-10 18:04:14,249 INFO L125 PetriNetUnfolderBase]: For 32854/33491 co-relation queries the response was YES. [2024-11-10 18:04:14,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28517 conditions, 6827 events. 3587/6827 cut-off events. For 32854/33491 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 52279 event pairs, 1914 based on Foata normal form. 93/6614 useless extension candidates. Maximal degree in co-relation 26804. Up to 4912 conditions per place. [2024-11-10 18:04:14,308 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 102 selfloop transitions, 5 changer transitions 0/178 dead transitions. [2024-11-10 18:04:14,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 178 transitions, 1667 flow [2024-11-10 18:04:14,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:04:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:04:14,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2024-11-10 18:04:14,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6439393939393939 [2024-11-10 18:04:14,310 INFO L175 Difference]: Start difference. First operand has 145 places, 172 transitions, 1409 flow. Second operand 3 states and 255 transitions. [2024-11-10 18:04:14,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 178 transitions, 1667 flow [2024-11-10 18:04:14,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 178 transitions, 1579 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-10 18:04:14,396 INFO L231 Difference]: Finished difference. Result has 141 places, 170 transitions, 1327 flow [2024-11-10 18:04:14,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1317, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1327, PETRI_PLACES=141, PETRI_TRANSITIONS=170} [2024-11-10 18:04:14,397 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 19 predicate places. [2024-11-10 18:04:14,397 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 170 transitions, 1327 flow [2024-11-10 18:04:14,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:14,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:14,397 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:14,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-10 18:04:14,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:14,598 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:14,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:14,598 INFO L85 PathProgramCache]: Analyzing trace with hash -678409941, now seen corresponding path program 1 times [2024-11-10 18:04:14,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:14,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054615033] [2024-11-10 18:04:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:14,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:14,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:14,606 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:14,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-10 18:04:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:14,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 18:04:14,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:14,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-10 18:04:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:14,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:14,788 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:14,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054615033] [2024-11-10 18:04:14,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054615033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:14,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:14,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:04:14,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582468205] [2024-11-10 18:04:14,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:14,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:04:14,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:14,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:04:14,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:04:14,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 132 [2024-11-10 18:04:14,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 170 transitions, 1327 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:14,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:14,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 132 [2024-11-10 18:04:14,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:16,187 INFO L124 PetriNetUnfolderBase]: 3587/6819 cut-off events. [2024-11-10 18:04:16,188 INFO L125 PetriNetUnfolderBase]: For 30087/30722 co-relation queries the response was YES. [2024-11-10 18:04:16,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28027 conditions, 6819 events. 3587/6819 cut-off events. For 30087/30722 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 52138 event pairs, 1914 based on Foata normal form. 93/6606 useless extension candidates. Maximal degree in co-relation 27343. Up to 4912 conditions per place. [2024-11-10 18:04:16,352 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 102 selfloop transitions, 5 changer transitions 0/176 dead transitions. [2024-11-10 18:04:16,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 176 transitions, 1585 flow [2024-11-10 18:04:16,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:04:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:04:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2024-11-10 18:04:16,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6439393939393939 [2024-11-10 18:04:16,354 INFO L175 Difference]: Start difference. First operand has 141 places, 170 transitions, 1327 flow. Second operand 3 states and 255 transitions. [2024-11-10 18:04:16,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 176 transitions, 1585 flow [2024-11-10 18:04:16,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 176 transitions, 1575 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:04:16,427 INFO L231 Difference]: Finished difference. Result has 139 places, 168 transitions, 1323 flow [2024-11-10 18:04:16,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1323, PETRI_PLACES=139, PETRI_TRANSITIONS=168} [2024-11-10 18:04:16,428 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2024-11-10 18:04:16,428 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 168 transitions, 1323 flow [2024-11-10 18:04:16,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:16,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:16,428 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:16,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-10 18:04:16,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:16,630 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:16,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:16,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1631752656, now seen corresponding path program 1 times [2024-11-10 18:04:16,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:16,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272243738] [2024-11-10 18:04:16,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:16,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:16,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:16,632 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:16,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-10 18:04:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:16,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 18:04:16,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:16,846 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:16,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:16,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272243738] [2024-11-10 18:04:16,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272243738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:16,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:16,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:04:16,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129777393] [2024-11-10 18:04:16,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:16,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:04:16,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:16,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:04:16,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:04:16,850 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-10 18:04:16,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 168 transitions, 1323 flow. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:16,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:16,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-10 18:04:16,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:17,123 INFO L124 PetriNetUnfolderBase]: 266/537 cut-off events. [2024-11-10 18:04:17,123 INFO L125 PetriNetUnfolderBase]: For 2202/2258 co-relation queries the response was YES. [2024-11-10 18:04:17,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 537 events. 266/537 cut-off events. For 2202/2258 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2106 event pairs, 50 based on Foata normal form. 50/567 useless extension candidates. Maximal degree in co-relation 2268. Up to 269 conditions per place. [2024-11-10 18:04:17,127 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 61 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2024-11-10 18:04:17,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 100 transitions, 688 flow [2024-11-10 18:04:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:04:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:04:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2024-11-10 18:04:17,128 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6287878787878788 [2024-11-10 18:04:17,128 INFO L175 Difference]: Start difference. First operand has 139 places, 168 transitions, 1323 flow. Second operand 4 states and 332 transitions. [2024-11-10 18:04:17,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 100 transitions, 688 flow [2024-11-10 18:04:17,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 100 transitions, 511 flow, removed 33 selfloop flow, removed 28 redundant places. [2024-11-10 18:04:17,134 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 311 flow [2024-11-10 18:04:17,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=311, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2024-11-10 18:04:17,135 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -28 predicate places. [2024-11-10 18:04:17,135 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 311 flow [2024-11-10 18:04:17,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:17,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:17,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:17,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2024-11-10 18:04:17,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:17,337 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:17,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:17,337 INFO L85 PathProgramCache]: Analyzing trace with hash 995015736, now seen corresponding path program 1 times [2024-11-10 18:04:17,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:17,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681982514] [2024-11-10 18:04:17,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:17,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:17,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:17,339 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:17,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-10 18:04:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:17,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-10 18:04:17,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:17,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-10 18:04:17,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:17,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:17,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:17,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681982514] [2024-11-10 18:04:17,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681982514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:17,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:17,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:04:17,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404429829] [2024-11-10 18:04:17,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:17,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 18:04:17,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:17,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 18:04:17,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:04:17,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-10 18:04:17,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 311 flow. Second operand has 8 states, 8 states have (on average 72.375) internal successors, (579), 8 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:17,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:17,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-10 18:04:17,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:18,695 INFO L124 PetriNetUnfolderBase]: 303/630 cut-off events. [2024-11-10 18:04:18,695 INFO L125 PetriNetUnfolderBase]: For 1115/1120 co-relation queries the response was YES. [2024-11-10 18:04:18,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2006 conditions, 630 events. 303/630 cut-off events. For 1115/1120 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2760 event pairs, 25 based on Foata normal form. 13/633 useless extension candidates. Maximal degree in co-relation 1993. Up to 283 conditions per place. [2024-11-10 18:04:18,699 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 72 selfloop transitions, 29 changer transitions 0/131 dead transitions. [2024-11-10 18:04:18,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 131 transitions, 772 flow [2024-11-10 18:04:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 18:04:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 18:04:18,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 777 transitions. [2024-11-10 18:04:18,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5886363636363636 [2024-11-10 18:04:18,702 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 311 flow. Second operand 10 states and 777 transitions. [2024-11-10 18:04:18,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 131 transitions, 772 flow [2024-11-10 18:04:18,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 131 transitions, 730 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 18:04:18,706 INFO L231 Difference]: Finished difference. Result has 106 places, 102 transitions, 523 flow [2024-11-10 18:04:18,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=523, PETRI_PLACES=106, PETRI_TRANSITIONS=102} [2024-11-10 18:04:18,706 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-10 18:04:18,706 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 102 transitions, 523 flow [2024-11-10 18:04:18,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.375) internal successors, (579), 8 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:18,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:18,707 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:18,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2024-11-10 18:04:18,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:18,910 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:18,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:18,910 INFO L85 PathProgramCache]: Analyzing trace with hash 415573406, now seen corresponding path program 2 times [2024-11-10 18:04:18,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:18,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292362468] [2024-11-10 18:04:18,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:04:18,911 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 [2024-11-10 18:04:18,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:18,913 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:18,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-10 18:04:19,203 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 18:04:19,204 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:04:19,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-10 18:04:19,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:19,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-10 18:04:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:19,386 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:19,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:19,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292362468] [2024-11-10 18:04:19,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292362468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:19,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:19,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:04:19,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248922405] [2024-11-10 18:04:19,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:19,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 18:04:19,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:19,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 18:04:19,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:04:19,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-10 18:04:19,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 523 flow. Second operand has 8 states, 8 states have (on average 72.375) internal successors, (579), 8 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:19,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:19,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-10 18:04:19,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:20,407 INFO L124 PetriNetUnfolderBase]: 335/702 cut-off events. [2024-11-10 18:04:20,407 INFO L125 PetriNetUnfolderBase]: For 1632/1638 co-relation queries the response was YES. [2024-11-10 18:04:20,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2540 conditions, 702 events. 335/702 cut-off events. For 1632/1638 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3208 event pairs, 28 based on Foata normal form. 16/709 useless extension candidates. Maximal degree in co-relation 2521. Up to 213 conditions per place. [2024-11-10 18:04:20,413 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 86 selfloop transitions, 45 changer transitions 0/161 dead transitions. [2024-11-10 18:04:20,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 161 transitions, 1135 flow [2024-11-10 18:04:20,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:04:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 18:04:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 925 transitions. [2024-11-10 18:04:20,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5839646464646465 [2024-11-10 18:04:20,417 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 523 flow. Second operand 12 states and 925 transitions. [2024-11-10 18:04:20,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 161 transitions, 1135 flow [2024-11-10 18:04:20,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 161 transitions, 1093 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-10 18:04:20,424 INFO L231 Difference]: Finished difference. Result has 118 places, 121 transitions, 774 flow [2024-11-10 18:04:20,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=774, PETRI_PLACES=118, PETRI_TRANSITIONS=121} [2024-11-10 18:04:20,425 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -4 predicate places. [2024-11-10 18:04:20,425 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 121 transitions, 774 flow [2024-11-10 18:04:20,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.375) internal successors, (579), 8 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:20,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:20,426 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:20,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-10 18:04:20,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:20,627 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:20,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:20,627 INFO L85 PathProgramCache]: Analyzing trace with hash 818794898, now seen corresponding path program 3 times [2024-11-10 18:04:20,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:20,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755593633] [2024-11-10 18:04:20,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:04:20,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:20,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:20,632 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:20,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-10 18:04:20,999 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-10 18:04:21,000 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:04:21,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 18:04:21,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:21,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-10 18:04:21,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-10 18:04:21,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-10 18:04:21,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-10 18:04:21,250 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-10 18:04:21,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-10 18:04:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:21,276 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:21,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:21,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755593633] [2024-11-10 18:04:21,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755593633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:21,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:21,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:04:21,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81704167] [2024-11-10 18:04:21,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:21,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:04:21,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:21,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:04:21,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:04:21,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 132 [2024-11-10 18:04:21,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 121 transitions, 774 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:21,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:21,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 132 [2024-11-10 18:04:21,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:21,813 INFO L124 PetriNetUnfolderBase]: 336/688 cut-off events. [2024-11-10 18:04:21,814 INFO L125 PetriNetUnfolderBase]: For 2095/2110 co-relation queries the response was YES. [2024-11-10 18:04:21,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2852 conditions, 688 events. 336/688 cut-off events. For 2095/2110 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3122 event pairs, 191 based on Foata normal form. 6/672 useless extension candidates. Maximal degree in co-relation 2828. Up to 600 conditions per place. [2024-11-10 18:04:21,820 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 90 selfloop transitions, 4 changer transitions 0/115 dead transitions. [2024-11-10 18:04:21,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 115 transitions, 950 flow [2024-11-10 18:04:21,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:04:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:04:21,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2024-11-10 18:04:21,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5075757575757576 [2024-11-10 18:04:21,821 INFO L175 Difference]: Start difference. First operand has 118 places, 121 transitions, 774 flow. Second operand 4 states and 268 transitions. [2024-11-10 18:04:21,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 115 transitions, 950 flow [2024-11-10 18:04:21,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 115 transitions, 886 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-10 18:04:21,829 INFO L231 Difference]: Finished difference. Result has 109 places, 115 transitions, 706 flow [2024-11-10 18:04:21,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=706, PETRI_PLACES=109, PETRI_TRANSITIONS=115} [2024-11-10 18:04:21,830 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -13 predicate places. [2024-11-10 18:04:21,831 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 115 transitions, 706 flow [2024-11-10 18:04:21,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:21,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:21,831 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:21,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-10 18:04:22,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:22,032 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:22,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1338496555, now seen corresponding path program 1 times [2024-11-10 18:04:22,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:22,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355843420] [2024-11-10 18:04:22,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:22,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:22,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:22,038 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:22,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-10 18:04:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:22,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:04:22,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:22,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-10 18:04:22,540 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-10 18:04:22,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-10 18:04:22,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2024-11-10 18:04:22,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:22,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:22,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:22,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355843420] [2024-11-10 18:04:22,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355843420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:22,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:22,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:04:22,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270252239] [2024-11-10 18:04:22,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:22,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:04:22,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:22,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:04:22,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:04:22,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2024-11-10 18:04:22,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 115 transitions, 706 flow. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:22,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:04:22,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2024-11-10 18:04:22,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:04:23,053 INFO L124 PetriNetUnfolderBase]: 336/687 cut-off events. [2024-11-10 18:04:23,053 INFO L125 PetriNetUnfolderBase]: For 1612/1627 co-relation queries the response was YES. [2024-11-10 18:04:23,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2756 conditions, 687 events. 336/687 cut-off events. For 1612/1627 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3171 event pairs, 136 based on Foata normal form. 5/672 useless extension candidates. Maximal degree in co-relation 2732. Up to 418 conditions per place. [2024-11-10 18:04:23,058 INFO L140 encePairwiseOnDemand]: 127/132 looper letters, 99 selfloop transitions, 7 changer transitions 0/127 dead transitions. [2024-11-10 18:04:23,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 127 transitions, 996 flow [2024-11-10 18:04:23,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:04:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:04:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 288 transitions. [2024-11-10 18:04:23,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-11-10 18:04:23,060 INFO L175 Difference]: Start difference. First operand has 109 places, 115 transitions, 706 flow. Second operand 4 states and 288 transitions. [2024-11-10 18:04:23,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 127 transitions, 996 flow [2024-11-10 18:04:23,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 127 transitions, 988 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 18:04:23,066 INFO L231 Difference]: Finished difference. Result has 108 places, 114 transitions, 710 flow [2024-11-10 18:04:23,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=710, PETRI_PLACES=108, PETRI_TRANSITIONS=114} [2024-11-10 18:04:23,067 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -14 predicate places. [2024-11-10 18:04:23,067 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 114 transitions, 710 flow [2024-11-10 18:04:23,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:04:23,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:04:23,068 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:04:23,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2024-11-10 18:04:23,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:23,269 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-10 18:04:23,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:04:23,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1725453930, now seen corresponding path program 1 times [2024-11-10 18:04:23,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:04:23,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824775262] [2024-11-10 18:04:23,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:04:23,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 18:04:23,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:04:23,271 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 18:04:23,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-10 18:04:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:04:23,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-10 18:04:23,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:04:23,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-10 18:04:23,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-10 18:04:23,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-10 18:04:23,920 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:04:23,921 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-10 18:04:23,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-10 18:04:23,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 18:04:23,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 75 [2024-11-10 18:04:27,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 18:04:27,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-10 18:04:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:04:27,694 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:04:27,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:04:27,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824775262] [2024-11-10 18:04:27,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824775262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:04:27,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:04:27,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 18:04:27,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202355118] [2024-11-10 18:04:27,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:04:27,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:04:27,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:04:27,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:04:27,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=54, Unknown=1, NotChecked=0, Total=72 [2024-11-10 18:04:30,404 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] [2024-11-10 18:04:33,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-10 18:04:36,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-10 18:04:40,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-10 18:04:44,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-10 18:04:48,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-10 18:04:52,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-10 18:04:55,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-10 18:05:00,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]