./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:06:08,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:06:08,788 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:06:08,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:06:08,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:06:08,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:06:08,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:06:08,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:06:08,818 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:06:08,819 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:06:08,819 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:06:08,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:06:08,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:06:08,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:06:08,821 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:06:08,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:06:08,824 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:06:08,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:06:08,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:06:08,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:06:08,825 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:06:08,826 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:06:08,826 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:06:08,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:06:08,831 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:06:08,832 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:06:08,832 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:06:08,832 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:06:08,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:06:08,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:06:08,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:06:08,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:06:08,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:06:08,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:06:08,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:06:08,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:06:08,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:06:08,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:06:08,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:06:08,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:06:08,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:06:08,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:06:08,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-10-24 19:06:09,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:06:09,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:06:09,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:06:09,110 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:06:09,110 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:06:09,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-24 19:06:10,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:06:10,843 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:06:10,847 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-24 19:06:10,875 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/620a3b390/2ae6944e6a974be2830888be8123200b/FLAG0c0f36c73 [2024-10-24 19:06:10,889 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/620a3b390/2ae6944e6a974be2830888be8123200b [2024-10-24 19:06:10,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:06:10,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:06:10,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:06:10,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:06:10,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:06:10,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:06:10" (1/1) ... [2024-10-24 19:06:10,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c8cfce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:10, skipping insertion in model container [2024-10-24 19:06:10,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:06:10" (1/1) ... [2024-10-24 19:06:10,963 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:06:11,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:06:11,440 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-24 19:06:11,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c090c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:11, skipping insertion in model container [2024-10-24 19:06:11,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:06:11,445 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 19:06:11,447 INFO L158 Benchmark]: Toolchain (without parser) took 553.41ms. Allocated memory is still 163.6MB. Free memory was 120.3MB in the beginning and 96.8MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-24 19:06:11,447 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:06:11,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.17ms. Allocated memory is still 163.6MB. Free memory was 119.9MB in the beginning and 96.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-24 19:06:11,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.17ms. Allocated memory is still 163.6MB. Free memory was 119.9MB in the beginning and 96.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:06:13,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:06:13,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-24 19:06:13,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:06:13,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:06:13,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:06:13,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:06:13,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:06:13,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:06:13,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:06:13,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:06:13,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:06:13,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:06:13,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:06:13,654 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:06:13,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:06:13,655 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:06:13,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:06:13,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:06:13,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:06:13,657 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:06:13,657 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:06:13,658 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:06:13,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:06:13,658 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:06:13,659 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 19:06:13,659 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:06:13,659 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 19:06:13,660 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:06:13,660 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:06:13,660 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:06:13,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:06:13,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:06:13,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:06:13,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:06:13,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:06:13,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:06:13,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:06:13,663 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 19:06:13,664 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 19:06:13,664 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:06:13,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:06:13,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:06:13,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:06:13,666 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 19:06:13,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-10-24 19:06:14,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:06:14,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:06:14,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:06:14,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:06:14,033 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:06:14,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-24 19:06:15,618 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:06:15,942 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:06:15,943 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-24 19:06:15,988 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e9f9deb6/66f66dccc8e04d129707a74b3d6a685a/FLAG69c7d80e7 [2024-10-24 19:06:16,197 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e9f9deb6/66f66dccc8e04d129707a74b3d6a685a [2024-10-24 19:06:16,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:06:16,201 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:06:16,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:06:16,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:06:16,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:06:16,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:06:16" (1/1) ... [2024-10-24 19:06:16,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c10161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:16, skipping insertion in model container [2024-10-24 19:06:16,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:06:16" (1/1) ... [2024-10-24 19:06:16,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:06:16,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:06:16,801 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 19:06:16,821 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:06:16,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:06:16,871 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:06:16,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:06:17,002 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:06:17,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17 WrapperNode [2024-10-24 19:06:17,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:06:17,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:06:17,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:06:17,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:06:17,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,077 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2024-10-24 19:06:17,078 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:06:17,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:06:17,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:06:17,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:06:17,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,134 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2024-10-24 19:06:17,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:06:17,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:06:17,196 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:06:17,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:06:17,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (1/1) ... [2024-10-24 19:06:17,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:06:17,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:06:17,235 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) [2024-10-24 19:06:17,237 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 [2024-10-24 19:06:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 19:06:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 19:06:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 19:06:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-24 19:06:17,278 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 19:06:17,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:06:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 19:06:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 19:06:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:06:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 19:06:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 19:06:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 19:06:17,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:06:17,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:06:17,282 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:06:17,608 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:06:17,611 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:06:18,220 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:06:18,221 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:06:18,387 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:06:18,388 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:06:18,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:06:18 BoogieIcfgContainer [2024-10-24 19:06:18,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:06:18,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:06:18,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:06:18,394 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:06:18,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:06:16" (1/3) ... [2024-10-24 19:06:18,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af9221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:06:18, skipping insertion in model container [2024-10-24 19:06:18,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:06:17" (2/3) ... [2024-10-24 19:06:18,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af9221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:06:18, skipping insertion in model container [2024-10-24 19:06:18,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:06:18" (3/3) ... [2024-10-24 19:06:18,398 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2024-10-24 19:06:18,413 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:06:18,414 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2024-10-24 19:06:18,414 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:06:18,475 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 19:06:18,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 262 flow [2024-10-24 19:06:18,581 INFO L124 PetriNetUnfolderBase]: 14/171 cut-off events. [2024-10-24 19:06:18,581 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 19:06:18,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 171 events. 14/171 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 694 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2024-10-24 19:06:18,591 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 124 transitions, 262 flow [2024-10-24 19:06:18,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 122 transitions, 256 flow [2024-10-24 19:06:18,614 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:06:18,621 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;@62570f1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:06:18,621 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-10-24 19:06:18,624 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:06:18,624 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-24 19:06:18,624 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:06:18,624 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:18,625 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-24 19:06:18,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:18,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:18,630 INFO L85 PathProgramCache]: Analyzing trace with hash 563048, now seen corresponding path program 1 times [2024-10-24 19:06:18,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:18,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701387618] [2024-10-24 19:06:18,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:18,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:18,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:18,645 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) [2024-10-24 19:06:18,646 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 [2024-10-24 19:06:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:18,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:06:18,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:18,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 19:06:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:18,877 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:18,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:18,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701387618] [2024-10-24 19:06:18,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701387618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:18,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:18,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:06:18,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098592617] [2024-10-24 19:06:18,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:18,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:06:18,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:18,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:06:18,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:06:18,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-10-24 19:06:19,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:19,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:19,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-10-24 19:06:19,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:21,643 INFO L124 PetriNetUnfolderBase]: 9323/18312 cut-off events. [2024-10-24 19:06:21,644 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-10-24 19:06:21,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32872 conditions, 18312 events. 9323/18312 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177600 event pairs, 559 based on Foata normal form. 792/11540 useless extension candidates. Maximal degree in co-relation 32603. Up to 13528 conditions per place. [2024-10-24 19:06:21,799 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 94 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2024-10-24 19:06:21,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 472 flow [2024-10-24 19:06:21,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:06:21,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:06:21,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-10-24 19:06:21,813 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2024-10-24 19:06:21,816 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 256 flow. Second operand 3 states and 226 transitions. [2024-10-24 19:06:21,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 472 flow [2024-10-24 19:06:21,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 19:06:21,828 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-10-24 19:06:21,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-10-24 19:06:21,836 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2024-10-24 19:06:21,837 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-10-24 19:06:21,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:21,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:21,838 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-24 19:06:21,846 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 [2024-10-24 19:06:22,039 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 [2024-10-24 19:06:22,040 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:22,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:22,041 INFO L85 PathProgramCache]: Analyzing trace with hash 563049, now seen corresponding path program 1 times [2024-10-24 19:06:22,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:22,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121253852] [2024-10-24 19:06:22,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:22,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:22,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:22,046 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) [2024-10-24 19:06:22,047 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 (3)] Waiting until timeout for monitored process [2024-10-24 19:06:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:22,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 19:06:22,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:22,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 19:06:22,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:22,185 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:22,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:22,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121253852] [2024-10-24 19:06:22,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121253852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:22,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:22,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:06:22,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952294366] [2024-10-24 19:06:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:22,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:06:22,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:22,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:06:22,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:06:22,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2024-10-24 19:06:22,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:22,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:22,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2024-10-24 19:06:22,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:24,315 INFO L124 PetriNetUnfolderBase]: 9323/18310 cut-off events. [2024-10-24 19:06:24,316 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-10-24 19:06:24,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33036 conditions, 18310 events. 9323/18310 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177732 event pairs, 559 based on Foata normal form. 1/10747 useless extension candidates. Maximal degree in co-relation 1995. Up to 13528 conditions per place. [2024-10-24 19:06:24,407 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2024-10-24 19:06:24,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 462 flow [2024-10-24 19:06:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:06:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:06:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-10-24 19:06:24,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5913978494623656 [2024-10-24 19:06:24,410 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 220 transitions. [2024-10-24 19:06:24,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 462 flow [2024-10-24 19:06:24,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:06:24,416 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 220 flow [2024-10-24 19:06:24,416 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2024-10-24 19:06:24,418 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2024-10-24 19:06:24,418 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 220 flow [2024-10-24 19:06:24,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:24,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:24,418 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-24 19:06:24,425 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 [2024-10-24 19:06:24,619 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 [2024-10-24 19:06:24,620 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:24,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash 17452875, now seen corresponding path program 1 times [2024-10-24 19:06:24,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:24,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884761263] [2024-10-24 19:06:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:24,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:24,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:24,623 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) [2024-10-24 19:06:24,625 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 [2024-10-24 19:06:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:24,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 19:06:24,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:24,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:24,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:24,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:24,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884761263] [2024-10-24 19:06:24,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884761263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:24,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:24,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:06:24,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085883180] [2024-10-24 19:06:24,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:24,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:06:24,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:24,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:06:24,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:06:24,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2024-10-24 19:06:24,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:24,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:24,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2024-10-24 19:06:24,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:26,665 INFO L124 PetriNetUnfolderBase]: 9322/15614 cut-off events. [2024-10-24 19:06:26,666 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-10-24 19:06:26,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30340 conditions, 15614 events. 9322/15614 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 834. Compared 119285 event pairs, 8957 based on Foata normal form. 1/9011 useless extension candidates. Maximal degree in co-relation 16169. Up to 13949 conditions per place. [2024-10-24 19:06:26,746 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2024-10-24 19:06:26,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 131 transitions, 460 flow [2024-10-24 19:06:26,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:06:26,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:06:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2024-10-24 19:06:26,750 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5967741935483871 [2024-10-24 19:06:26,751 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 220 flow. Second operand 3 states and 222 transitions. [2024-10-24 19:06:26,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 131 transitions, 460 flow [2024-10-24 19:06:26,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 131 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:06:26,756 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 218 flow [2024-10-24 19:06:26,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2024-10-24 19:06:26,757 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2024-10-24 19:06:26,758 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 218 flow [2024-10-24 19:06:26,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:26,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:26,759 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:26,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-24 19:06:26,963 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 [2024-10-24 19:06:26,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:26,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:26,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1118249543, now seen corresponding path program 1 times [2024-10-24 19:06:26,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:26,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065113849] [2024-10-24 19:06:26,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:26,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:26,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:26,969 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) [2024-10-24 19:06:26,970 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 [2024-10-24 19:06:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:27,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 19:06:27,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:27,110 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:27,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:27,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065113849] [2024-10-24 19:06:27,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065113849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:27,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:27,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:06:27,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983727200] [2024-10-24 19:06:27,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:27,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:06:27,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:27,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:06:27,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:06:27,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-10-24 19:06:27,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:27,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:27,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-10-24 19:06:27,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:28,379 INFO L124 PetriNetUnfolderBase]: 9321/16372 cut-off events. [2024-10-24 19:06:28,379 INFO L125 PetriNetUnfolderBase]: For 199/199 co-relation queries the response was YES. [2024-10-24 19:06:28,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31092 conditions, 16372 events. 9321/16372 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 131897 event pairs, 9321 based on Foata normal form. 1/9713 useless extension candidates. Maximal degree in co-relation 29764. Up to 14494 conditions per place. [2024-10-24 19:06:28,488 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 74 selfloop transitions, 3 changer transitions 1/114 dead transitions. [2024-10-24 19:06:28,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 114 transitions, 394 flow [2024-10-24 19:06:28,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:06:28,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:06:28,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-10-24 19:06:28,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5060483870967742 [2024-10-24 19:06:28,490 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 218 flow. Second operand 4 states and 251 transitions. [2024-10-24 19:06:28,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 114 transitions, 394 flow [2024-10-24 19:06:28,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 114 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:06:28,509 INFO L231 Difference]: Finished difference. Result has 111 places, 107 transitions, 235 flow [2024-10-24 19:06:28,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=111, PETRI_TRANSITIONS=107} [2024-10-24 19:06:28,512 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places. [2024-10-24 19:06:28,512 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 235 flow [2024-10-24 19:06:28,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:28,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:28,513 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:28,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-24 19:06:28,714 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 [2024-10-24 19:06:28,715 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:28,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:28,715 INFO L85 PathProgramCache]: Analyzing trace with hash 305997286, now seen corresponding path program 1 times [2024-10-24 19:06:28,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:28,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620820543] [2024-10-24 19:06:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:28,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:28,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:28,720 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) [2024-10-24 19:06:28,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-24 19:06:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:28,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 19:06:28,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:28,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 19:06:28,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:28,887 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:28,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:28,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620820543] [2024-10-24 19:06:28,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620820543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:28,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:28,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:06:28,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265507300] [2024-10-24 19:06:28,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:28,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:06:28,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:28,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:06:28,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:06:28,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124 [2024-10-24 19:06:28,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:28,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:28,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124 [2024-10-24 19:06:28,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:30,424 INFO L124 PetriNetUnfolderBase]: 10049/16876 cut-off events. [2024-10-24 19:06:30,424 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-10-24 19:06:30,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33118 conditions, 16876 events. 10049/16876 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 882. Compared 129157 event pairs, 9321 based on Foata normal form. 0/10098 useless extension candidates. Maximal degree in co-relation 33071. Up to 14501 conditions per place. [2024-10-24 19:06:30,537 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 95 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2024-10-24 19:06:30,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 128 transitions, 477 flow [2024-10-24 19:06:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:06:30,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:06:30,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-10-24 19:06:30,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2024-10-24 19:06:30,539 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 235 flow. Second operand 3 states and 208 transitions. [2024-10-24 19:06:30,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 128 transitions, 477 flow [2024-10-24 19:06:30,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 128 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:06:30,555 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 234 flow [2024-10-24 19:06:30,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2024-10-24 19:06:30,558 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -11 predicate places. [2024-10-24 19:06:30,559 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 234 flow [2024-10-24 19:06:30,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:30,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:30,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:30,568 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 [2024-10-24 19:06:30,760 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 [2024-10-24 19:06:30,761 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:30,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:30,761 INFO L85 PathProgramCache]: Analyzing trace with hash 305997287, now seen corresponding path program 1 times [2024-10-24 19:06:30,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:30,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907660216] [2024-10-24 19:06:30,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:30,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:30,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:30,765 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) [2024-10-24 19:06:30,766 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 [2024-10-24 19:06:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:30,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 19:06:30,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:30,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 19:06:30,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:30,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:30,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:30,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907660216] [2024-10-24 19:06:30,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907660216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:30,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:30,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:06:30,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717297196] [2024-10-24 19:06:30,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:30,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:06:30,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:30,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:06:30,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:06:31,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2024-10-24 19:06:31,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:31,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:31,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2024-10-24 19:06:31,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:32,051 INFO L124 PetriNetUnfolderBase]: 9321/15680 cut-off events. [2024-10-24 19:06:32,052 INFO L125 PetriNetUnfolderBase]: For 941/941 co-relation queries the response was YES. [2024-10-24 19:06:32,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31004 conditions, 15680 events. 9321/15680 cut-off events. For 941/941 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 121858 event pairs, 3107 based on Foata normal form. 394/9594 useless extension candidates. Maximal degree in co-relation 27898. Up to 9600 conditions per place. [2024-10-24 19:06:32,122 INFO L140 encePairwiseOnDemand]: 117/124 looper letters, 106 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-10-24 19:06:32,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 135 transitions, 524 flow [2024-10-24 19:06:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:06:32,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:06:32,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2024-10-24 19:06:32,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5994623655913979 [2024-10-24 19:06:32,124 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 234 flow. Second operand 3 states and 223 transitions. [2024-10-24 19:06:32,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 135 transitions, 524 flow [2024-10-24 19:06:32,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 135 transitions, 512 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:06:32,145 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 250 flow [2024-10-24 19:06:32,145 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2024-10-24 19:06:32,146 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2024-10-24 19:06:32,146 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 250 flow [2024-10-24 19:06:32,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:32,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:32,146 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:32,152 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 [2024-10-24 19:06:32,347 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 [2024-10-24 19:06:32,347 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:32,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:32,348 INFO L85 PathProgramCache]: Analyzing trace with hash 976462417, now seen corresponding path program 1 times [2024-10-24 19:06:32,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:32,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752431664] [2024-10-24 19:06:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:32,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:32,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:32,350 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) [2024-10-24 19:06:32,351 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 [2024-10-24 19:06:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:32,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 19:06:32,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:32,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 19:06:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:32,549 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:32,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:32,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752431664] [2024-10-24 19:06:32,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752431664] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:32,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:32,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:06:32,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795035699] [2024-10-24 19:06:32,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:32,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:06:32,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:32,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:06:32,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:06:32,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-10-24 19:06:32,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:32,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:32,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-10-24 19:06:32,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:34,587 INFO L124 PetriNetUnfolderBase]: 7623/13756 cut-off events. [2024-10-24 19:06:34,587 INFO L125 PetriNetUnfolderBase]: For 778/778 co-relation queries the response was YES. [2024-10-24 19:06:34,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26853 conditions, 13756 events. 7623/13756 cut-off events. For 778/778 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 111293 event pairs, 253 based on Foata normal form. 0/9114 useless extension candidates. Maximal degree in co-relation 9239. Up to 9075 conditions per place. [2024-10-24 19:06:34,660 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 183 selfloop transitions, 13 changer transitions 0/227 dead transitions. [2024-10-24 19:06:34,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 227 transitions, 903 flow [2024-10-24 19:06:34,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:06:34,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:06:34,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 547 transitions. [2024-10-24 19:06:34,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5514112903225806 [2024-10-24 19:06:34,663 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 250 flow. Second operand 8 states and 547 transitions. [2024-10-24 19:06:34,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 227 transitions, 903 flow [2024-10-24 19:06:34,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 227 transitions, 895 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-24 19:06:34,703 INFO L231 Difference]: Finished difference. Result has 118 places, 110 transitions, 331 flow [2024-10-24 19:06:34,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=331, PETRI_PLACES=118, PETRI_TRANSITIONS=110} [2024-10-24 19:06:34,704 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2024-10-24 19:06:34,704 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 110 transitions, 331 flow [2024-10-24 19:06:34,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:34,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:34,705 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:34,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-24 19:06:34,905 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 [2024-10-24 19:06:34,906 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:34,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:34,906 INFO L85 PathProgramCache]: Analyzing trace with hash 976462418, now seen corresponding path program 1 times [2024-10-24 19:06:34,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:34,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204146294] [2024-10-24 19:06:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:34,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:34,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:34,908 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) [2024-10-24 19:06:34,909 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 [2024-10-24 19:06:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:35,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 19:06:35,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:35,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 19:06:35,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:35,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:35,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:35,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204146294] [2024-10-24 19:06:35,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204146294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:35,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:35,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:06:35,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116649066] [2024-10-24 19:06:35,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:35,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:06:35,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:35,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:06:35,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:06:35,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-10-24 19:06:35,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 110 transitions, 331 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:35,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:35,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-10-24 19:06:35,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:37,039 INFO L124 PetriNetUnfolderBase]: 6646/11793 cut-off events. [2024-10-24 19:06:37,039 INFO L125 PetriNetUnfolderBase]: For 4332/4332 co-relation queries the response was YES. [2024-10-24 19:06:37,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25123 conditions, 11793 events. 6646/11793 cut-off events. For 4332/4332 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 91682 event pairs, 845 based on Foata normal form. 524/9135 useless extension candidates. Maximal degree in co-relation 23658. Up to 6594 conditions per place. [2024-10-24 19:06:37,104 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 151 selfloop transitions, 10 changer transitions 1/193 dead transitions. [2024-10-24 19:06:37,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 193 transitions, 841 flow [2024-10-24 19:06:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:06:37,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:06:37,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 464 transitions. [2024-10-24 19:06:37,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5345622119815668 [2024-10-24 19:06:37,107 INFO L175 Difference]: Start difference. First operand has 118 places, 110 transitions, 331 flow. Second operand 7 states and 464 transitions. [2024-10-24 19:06:37,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 193 transitions, 841 flow [2024-10-24 19:06:37,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 193 transitions, 834 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 19:06:37,129 INFO L231 Difference]: Finished difference. Result has 126 places, 112 transitions, 379 flow [2024-10-24 19:06:37,129 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=379, PETRI_PLACES=126, PETRI_TRANSITIONS=112} [2024-10-24 19:06:37,130 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2024-10-24 19:06:37,130 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 112 transitions, 379 flow [2024-10-24 19:06:37,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:37,131 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:37,131 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:37,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-24 19:06:37,331 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 [2024-10-24 19:06:37,332 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:37,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:37,333 INFO L85 PathProgramCache]: Analyzing trace with hash 244712209, now seen corresponding path program 1 times [2024-10-24 19:06:37,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:37,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967158969] [2024-10-24 19:06:37,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:37,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:37,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:37,336 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) [2024-10-24 19:06:37,337 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 [2024-10-24 19:06:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:37,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 19:06:37,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:37,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 19:06:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:37,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:37,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:37,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967158969] [2024-10-24 19:06:37,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967158969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:37,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:37,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:06:37,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586184946] [2024-10-24 19:06:37,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:37,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:06:37,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:37,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:06:37,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:06:37,648 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-10-24 19:06:37,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 112 transitions, 379 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:37,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:37,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-10-24 19:06:37,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:39,406 INFO L124 PetriNetUnfolderBase]: 5575/9967 cut-off events. [2024-10-24 19:06:39,407 INFO L125 PetriNetUnfolderBase]: For 6993/6993 co-relation queries the response was YES. [2024-10-24 19:06:39,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23148 conditions, 9967 events. 5575/9967 cut-off events. For 6993/6993 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 74996 event pairs, 653 based on Foata normal form. 0/7770 useless extension candidates. Maximal degree in co-relation 20966. Up to 6421 conditions per place. [2024-10-24 19:06:39,455 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 174 selfloop transitions, 17 changer transitions 0/222 dead transitions. [2024-10-24 19:06:39,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 222 transitions, 1126 flow [2024-10-24 19:06:39,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:06:39,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:06:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2024-10-24 19:06:39,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5342741935483871 [2024-10-24 19:06:39,458 INFO L175 Difference]: Start difference. First operand has 126 places, 112 transitions, 379 flow. Second operand 8 states and 530 transitions. [2024-10-24 19:06:39,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 222 transitions, 1126 flow [2024-10-24 19:06:39,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 222 transitions, 1096 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 19:06:39,477 INFO L231 Difference]: Finished difference. Result has 132 places, 121 transitions, 486 flow [2024-10-24 19:06:39,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=486, PETRI_PLACES=132, PETRI_TRANSITIONS=121} [2024-10-24 19:06:39,478 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 14 predicate places. [2024-10-24 19:06:39,478 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 121 transitions, 486 flow [2024-10-24 19:06:39,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:39,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:39,479 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:39,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-24 19:06:39,679 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 [2024-10-24 19:06:39,680 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:39,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:39,680 INFO L85 PathProgramCache]: Analyzing trace with hash 244712210, now seen corresponding path program 1 times [2024-10-24 19:06:39,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:39,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828706145] [2024-10-24 19:06:39,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:39,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:39,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:39,683 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) [2024-10-24 19:06:39,684 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 [2024-10-24 19:06:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:39,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 19:06:39,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:39,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 19:06:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:39,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:39,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:39,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828706145] [2024-10-24 19:06:39,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828706145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:39,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:39,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:06:39,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517873887] [2024-10-24 19:06:39,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:39,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:06:39,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:39,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:06:39,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:06:40,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-10-24 19:06:40,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 121 transitions, 486 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:40,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:40,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-10-24 19:06:40,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:41,353 INFO L124 PetriNetUnfolderBase]: 4926/8678 cut-off events. [2024-10-24 19:06:41,354 INFO L125 PetriNetUnfolderBase]: For 8054/8056 co-relation queries the response was YES. [2024-10-24 19:06:41,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21879 conditions, 8678 events. 4926/8678 cut-off events. For 8054/8056 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 62594 event pairs, 1266 based on Foata normal form. 378/7832 useless extension candidates. Maximal degree in co-relation 19986. Up to 5127 conditions per place. [2024-10-24 19:06:41,391 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 145 selfloop transitions, 14 changer transitions 1/191 dead transitions. [2024-10-24 19:06:41,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 191 transitions, 1048 flow [2024-10-24 19:06:41,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:06:41,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:06:41,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2024-10-24 19:06:41,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2024-10-24 19:06:41,392 INFO L175 Difference]: Start difference. First operand has 132 places, 121 transitions, 486 flow. Second operand 7 states and 448 transitions. [2024-10-24 19:06:41,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 191 transitions, 1048 flow [2024-10-24 19:06:41,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 191 transitions, 1045 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:06:41,408 INFO L231 Difference]: Finished difference. Result has 140 places, 124 transitions, 561 flow [2024-10-24 19:06:41,409 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=561, PETRI_PLACES=140, PETRI_TRANSITIONS=124} [2024-10-24 19:06:41,409 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 22 predicate places. [2024-10-24 19:06:41,409 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 124 transitions, 561 flow [2024-10-24 19:06:41,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:41,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:41,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:41,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-10-24 19:06:41,613 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 [2024-10-24 19:06:41,613 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:41,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:41,614 INFO L85 PathProgramCache]: Analyzing trace with hash 242287941, now seen corresponding path program 1 times [2024-10-24 19:06:41,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:41,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095810601] [2024-10-24 19:06:41,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:41,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:41,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:41,616 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) [2024-10-24 19:06:41,617 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 [2024-10-24 19:06:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:41,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 19:06:41,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:41,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 19:06:41,825 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-24 19:06:41,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-10-24 19:06:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:41,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:41,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:41,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095810601] [2024-10-24 19:06:41,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095810601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:41,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:41,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:06:41,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013055398] [2024-10-24 19:06:41,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:41,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:06:41,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:41,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:06:41,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:06:42,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124 [2024-10-24 19:06:42,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 124 transitions, 561 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:42,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:42,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124 [2024-10-24 19:06:42,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:43,191 INFO L124 PetriNetUnfolderBase]: 4270/7291 cut-off events. [2024-10-24 19:06:43,192 INFO L125 PetriNetUnfolderBase]: For 10677/10696 co-relation queries the response was YES. [2024-10-24 19:06:43,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20331 conditions, 7291 events. 4270/7291 cut-off events. For 10677/10696 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 48830 event pairs, 2034 based on Foata normal form. 2/6536 useless extension candidates. Maximal degree in co-relation 18406. Up to 3737 conditions per place. [2024-10-24 19:06:43,226 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 101 selfloop transitions, 13 changer transitions 0/142 dead transitions. [2024-10-24 19:06:43,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 142 transitions, 845 flow [2024-10-24 19:06:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:06:43,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:06:43,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-10-24 19:06:43,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4838709677419355 [2024-10-24 19:06:43,228 INFO L175 Difference]: Start difference. First operand has 140 places, 124 transitions, 561 flow. Second operand 4 states and 240 transitions. [2024-10-24 19:06:43,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 142 transitions, 845 flow [2024-10-24 19:06:43,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 142 transitions, 824 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 19:06:43,239 INFO L231 Difference]: Finished difference. Result has 134 places, 120 transitions, 558 flow [2024-10-24 19:06:43,240 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=558, PETRI_PLACES=134, PETRI_TRANSITIONS=120} [2024-10-24 19:06:43,240 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 16 predicate places. [2024-10-24 19:06:43,240 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 120 transitions, 558 flow [2024-10-24 19:06:43,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:43,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:43,241 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:43,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-24 19:06:43,441 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 [2024-10-24 19:06:43,441 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:43,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:43,442 INFO L85 PathProgramCache]: Analyzing trace with hash 242287942, now seen corresponding path program 1 times [2024-10-24 19:06:43,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:43,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137468891] [2024-10-24 19:06:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:43,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:43,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:43,443 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) [2024-10-24 19:06:43,444 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 [2024-10-24 19:06:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:43,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:06:43,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:43,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 19:06:43,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 19:06:43,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 19:06:43,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 19:06:43,737 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 19:06:43,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-24 19:06:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:43,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:43,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:43,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137468891] [2024-10-24 19:06:43,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137468891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:43,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:43,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:06:43,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823051380] [2024-10-24 19:06:43,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:43,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:06:43,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:43,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:06:43,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:06:43,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 124 [2024-10-24 19:06:43,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 120 transitions, 558 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:43,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:43,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 124 [2024-10-24 19:06:43,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:44,753 INFO L124 PetriNetUnfolderBase]: 3166/5613 cut-off events. [2024-10-24 19:06:44,753 INFO L125 PetriNetUnfolderBase]: For 8582/8601 co-relation queries the response was YES. [2024-10-24 19:06:44,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15814 conditions, 5613 events. 3166/5613 cut-off events. For 8582/8601 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 37474 event pairs, 1578 based on Foata normal form. 2/5332 useless extension candidates. Maximal degree in co-relation 14098. Up to 2373 conditions per place. [2024-10-24 19:06:44,777 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 109 selfloop transitions, 11 changer transitions 0/144 dead transitions. [2024-10-24 19:06:44,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 144 transitions, 866 flow [2024-10-24 19:06:44,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:06:44,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:06:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2024-10-24 19:06:44,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4657258064516129 [2024-10-24 19:06:44,778 INFO L175 Difference]: Start difference. First operand has 134 places, 120 transitions, 558 flow. Second operand 4 states and 231 transitions. [2024-10-24 19:06:44,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 144 transitions, 866 flow [2024-10-24 19:06:44,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 144 transitions, 840 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 19:06:44,789 INFO L231 Difference]: Finished difference. Result has 130 places, 116 transitions, 546 flow [2024-10-24 19:06:44,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=546, PETRI_PLACES=130, PETRI_TRANSITIONS=116} [2024-10-24 19:06:44,790 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 12 predicate places. [2024-10-24 19:06:44,790 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 116 transitions, 546 flow [2024-10-24 19:06:44,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:44,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:44,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:44,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-24 19:06:44,990 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 [2024-10-24 19:06:44,991 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:44,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:44,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1770643278, now seen corresponding path program 1 times [2024-10-24 19:06:44,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:44,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303214148] [2024-10-24 19:06:44,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:44,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:44,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:44,993 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) [2024-10-24 19:06:44,994 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 [2024-10-24 19:06:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:45,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 19:06:45,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:45,178 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:45,179 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:45,179 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:45,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-10-24 19:06:45,225 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:45,226 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:45,227 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:45,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 19:06:45,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 93 [2024-10-24 19:06:45,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 19:06:45,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 65 [2024-10-24 19:06:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:45,379 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:45,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:45,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303214148] [2024-10-24 19:06:45,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303214148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:45,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:45,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:06:45,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810074238] [2024-10-24 19:06:45,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:45,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:06:45,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:45,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:06:45,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:06:45,877 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-10-24 19:06:45,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 116 transitions, 546 flow. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:45,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:45,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-10-24 19:06:45,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:48,580 INFO L124 PetriNetUnfolderBase]: 4012/7122 cut-off events. [2024-10-24 19:06:48,580 INFO L125 PetriNetUnfolderBase]: For 12337/12341 co-relation queries the response was YES. [2024-10-24 19:06:48,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20054 conditions, 7122 events. 4012/7122 cut-off events. For 12337/12341 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 49720 event pairs, 2603 based on Foata normal form. 244/7093 useless extension candidates. Maximal degree in co-relation 18129. Up to 5530 conditions per place. [2024-10-24 19:06:48,613 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 128 selfloop transitions, 27 changer transitions 0/183 dead transitions. [2024-10-24 19:06:48,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 183 transitions, 1166 flow [2024-10-24 19:06:48,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:06:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:06:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 371 transitions. [2024-10-24 19:06:48,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4986559139784946 [2024-10-24 19:06:48,615 INFO L175 Difference]: Start difference. First operand has 130 places, 116 transitions, 546 flow. Second operand 6 states and 371 transitions. [2024-10-24 19:06:48,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 183 transitions, 1166 flow [2024-10-24 19:06:48,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 183 transitions, 1132 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 19:06:48,637 INFO L231 Difference]: Finished difference. Result has 136 places, 143 transitions, 805 flow [2024-10-24 19:06:48,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=805, PETRI_PLACES=136, PETRI_TRANSITIONS=143} [2024-10-24 19:06:48,638 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 18 predicate places. [2024-10-24 19:06:48,638 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 143 transitions, 805 flow [2024-10-24 19:06:48,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:48,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:48,638 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:48,648 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 [2024-10-24 19:06:48,842 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 [2024-10-24 19:06:48,843 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:48,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash 910496269, now seen corresponding path program 1 times [2024-10-24 19:06:48,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:48,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230522119] [2024-10-24 19:06:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:48,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:48,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:48,847 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) [2024-10-24 19:06:48,849 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 [2024-10-24 19:06:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:49,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 19:06:49,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:49,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 19:06:49,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 19:06:49,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 19:06:49,125 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:49,125 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:49,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-10-24 19:06:49,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 19:06:49,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 19:06:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 19:06:49,166 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:49,167 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 19:06:49,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 19:06:49,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 93 [2024-10-24 19:06:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:49,242 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:49,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:49,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230522119] [2024-10-24 19:06:49,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230522119] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:49,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:49,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:06:49,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215603153] [2024-10-24 19:06:49,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:49,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:06:49,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:49,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:06:49,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:06:49,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-10-24 19:06:49,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 143 transitions, 805 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:49,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:49,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-10-24 19:06:49,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:51,161 INFO L124 PetriNetUnfolderBase]: 4992/8687 cut-off events. [2024-10-24 19:06:51,161 INFO L125 PetriNetUnfolderBase]: For 15808/15812 co-relation queries the response was YES. [2024-10-24 19:06:51,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26848 conditions, 8687 events. 4992/8687 cut-off events. For 15808/15812 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 61793 event pairs, 2383 based on Foata normal form. 2/8332 useless extension candidates. Maximal degree in co-relation 24873. Up to 6267 conditions per place. [2024-10-24 19:06:51,205 INFO L140 encePairwiseOnDemand]: 113/124 looper letters, 151 selfloop transitions, 13 changer transitions 0/192 dead transitions. [2024-10-24 19:06:51,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 192 transitions, 1345 flow [2024-10-24 19:06:51,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:06:51,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:06:51,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-10-24 19:06:51,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5544354838709677 [2024-10-24 19:06:51,207 INFO L175 Difference]: Start difference. First operand has 136 places, 143 transitions, 805 flow. Second operand 4 states and 275 transitions. [2024-10-24 19:06:51,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 192 transitions, 1345 flow [2024-10-24 19:06:51,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 192 transitions, 1339 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-24 19:06:51,249 INFO L231 Difference]: Finished difference. Result has 142 places, 155 transitions, 935 flow [2024-10-24 19:06:51,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=935, PETRI_PLACES=142, PETRI_TRANSITIONS=155} [2024-10-24 19:06:51,250 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 24 predicate places. [2024-10-24 19:06:51,250 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 155 transitions, 935 flow [2024-10-24 19:06:51,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:51,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:51,251 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:51,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-10-24 19:06:51,454 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 [2024-10-24 19:06:51,455 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:51,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:51,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2064416020, now seen corresponding path program 1 times [2024-10-24 19:06:51,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:51,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167994039] [2024-10-24 19:06:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:51,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:51,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:51,459 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) [2024-10-24 19:06:51,460 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 [2024-10-24 19:06:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:51,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 19:06:51,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:51,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 19:06:51,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 19:06:51,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 19:06:51,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 19:06:51,835 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 19:06:51,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-24 19:06:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:51,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:51,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167994039] [2024-10-24 19:06:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167994039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:51,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:51,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:06:51,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305873569] [2024-10-24 19:06:51,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:51,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:06:51,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:51,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:06:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:06:52,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-10-24 19:06:52,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 155 transitions, 935 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:52,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:52,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-10-24 19:06:52,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:53,474 INFO L124 PetriNetUnfolderBase]: 4426/8154 cut-off events. [2024-10-24 19:06:53,474 INFO L125 PetriNetUnfolderBase]: For 17591/17597 co-relation queries the response was YES. [2024-10-24 19:06:53,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26836 conditions, 8154 events. 4426/8154 cut-off events. For 17591/17597 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 60471 event pairs, 997 based on Foata normal form. 403/8531 useless extension candidates. Maximal degree in co-relation 24319. Up to 4659 conditions per place. [2024-10-24 19:06:53,519 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 211 selfloop transitions, 25 changer transitions 0/268 dead transitions. [2024-10-24 19:06:53,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 268 transitions, 1964 flow [2024-10-24 19:06:53,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:06:53,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:06:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 555 transitions. [2024-10-24 19:06:53,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49731182795698925 [2024-10-24 19:06:53,521 INFO L175 Difference]: Start difference. First operand has 142 places, 155 transitions, 935 flow. Second operand 9 states and 555 transitions. [2024-10-24 19:06:53,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 268 transitions, 1964 flow [2024-10-24 19:06:53,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 268 transitions, 1931 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-10-24 19:06:53,577 INFO L231 Difference]: Finished difference. Result has 146 places, 153 transitions, 961 flow [2024-10-24 19:06:53,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=961, PETRI_PLACES=146, PETRI_TRANSITIONS=153} [2024-10-24 19:06:53,578 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 28 predicate places. [2024-10-24 19:06:53,578 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 153 transitions, 961 flow [2024-10-24 19:06:53,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:53,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:53,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:53,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-10-24 19:06:53,779 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 [2024-10-24 19:06:53,779 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:53,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:53,779 INFO L85 PathProgramCache]: Analyzing trace with hash -649110318, now seen corresponding path program 1 times [2024-10-24 19:06:53,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:53,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062040467] [2024-10-24 19:06:53,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:53,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:53,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:53,781 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) [2024-10-24 19:06:53,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-24 19:06:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:53,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 19:06:53,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:53,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 19:06:53,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 19:06:54,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 19:06:54,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 19:06:54,088 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 19:06:54,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-24 19:06:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:54,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:54,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:54,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062040467] [2024-10-24 19:06:54,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062040467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:54,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:54,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:06:54,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9688641] [2024-10-24 19:06:54,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:54,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:06:54,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:54,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:06:54,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:06:54,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-10-24 19:06:54,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 153 transitions, 961 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:54,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:54,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-10-24 19:06:54,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:55,663 INFO L124 PetriNetUnfolderBase]: 4401/8228 cut-off events. [2024-10-24 19:06:55,663 INFO L125 PetriNetUnfolderBase]: For 19521/19525 co-relation queries the response was YES. [2024-10-24 19:06:55,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27005 conditions, 8228 events. 4401/8228 cut-off events. For 19521/19525 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 62782 event pairs, 1084 based on Foata normal form. 304/8512 useless extension candidates. Maximal degree in co-relation 24023. Up to 3908 conditions per place. [2024-10-24 19:06:55,712 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 215 selfloop transitions, 25 changer transitions 0/272 dead transitions. [2024-10-24 19:06:55,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 272 transitions, 2040 flow [2024-10-24 19:06:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:06:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:06:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 556 transitions. [2024-10-24 19:06:55,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4982078853046595 [2024-10-24 19:06:55,714 INFO L175 Difference]: Start difference. First operand has 146 places, 153 transitions, 961 flow. Second operand 9 states and 556 transitions. [2024-10-24 19:06:55,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 272 transitions, 2040 flow [2024-10-24 19:06:55,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 272 transitions, 1987 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-24 19:06:55,780 INFO L231 Difference]: Finished difference. Result has 144 places, 151 transitions, 967 flow [2024-10-24 19:06:55,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=967, PETRI_PLACES=144, PETRI_TRANSITIONS=151} [2024-10-24 19:06:55,780 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 26 predicate places. [2024-10-24 19:06:55,780 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 151 transitions, 967 flow [2024-10-24 19:06:55,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:55,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:55,781 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:55,789 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 [2024-10-24 19:06:55,981 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 [2024-10-24 19:06:55,981 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:55,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:55,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1867513367, now seen corresponding path program 1 times [2024-10-24 19:06:55,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:55,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333658869] [2024-10-24 19:06:55,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:55,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:55,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:55,985 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) [2024-10-24 19:06:55,988 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 [2024-10-24 19:06:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:06:56,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 19:06:56,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:06:56,256 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_89| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_89|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_89| (_ bv0 1))))) is different from true [2024-10-24 19:06:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:06:56,262 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:06:56,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:06:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333658869] [2024-10-24 19:06:56,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333658869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:06:56,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:06:56,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:06:56,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133217037] [2024-10-24 19:06:56,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:06:56,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:06:56,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:06:56,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:06:56,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-10-24 19:06:56,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 124 [2024-10-24 19:06:56,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 151 transitions, 967 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:56,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:06:56,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 124 [2024-10-24 19:06:56,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:06:57,395 INFO L124 PetriNetUnfolderBase]: 4699/8406 cut-off events. [2024-10-24 19:06:57,395 INFO L125 PetriNetUnfolderBase]: For 21285/21287 co-relation queries the response was YES. [2024-10-24 19:06:57,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28486 conditions, 8406 events. 4699/8406 cut-off events. For 21285/21287 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 61490 event pairs, 1748 based on Foata normal form. 1/8376 useless extension candidates. Maximal degree in co-relation 25455. Up to 2794 conditions per place. [2024-10-24 19:06:57,445 INFO L140 encePairwiseOnDemand]: 98/124 looper letters, 142 selfloop transitions, 37 changer transitions 4/201 dead transitions. [2024-10-24 19:06:57,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 201 transitions, 1578 flow [2024-10-24 19:06:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:06:57,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:06:57,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 242 transitions. [2024-10-24 19:06:57,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3903225806451613 [2024-10-24 19:06:57,446 INFO L175 Difference]: Start difference. First operand has 144 places, 151 transitions, 967 flow. Second operand 5 states and 242 transitions. [2024-10-24 19:06:57,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 201 transitions, 1578 flow [2024-10-24 19:06:57,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 201 transitions, 1542 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-24 19:06:57,499 INFO L231 Difference]: Finished difference. Result has 145 places, 169 transitions, 1213 flow [2024-10-24 19:06:57,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1213, PETRI_PLACES=145, PETRI_TRANSITIONS=169} [2024-10-24 19:06:57,500 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2024-10-24 19:06:57,500 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 169 transitions, 1213 flow [2024-10-24 19:06:57,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:06:57,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:06:57,500 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:57,507 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 (18)] Ended with exit code 0 [2024-10-24 19:06:57,700 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 [2024-10-24 19:06:57,701 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-24 19:06:57,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:06:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1748656589, now seen corresponding path program 1 times [2024-10-24 19:06:57,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:06:57,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659729278] [2024-10-24 19:06:57,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:06:57,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:06:57,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:06:57,703 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) [2024-10-24 19:06:57,705 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 [2024-10-24 19:06:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:06:57,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 19:06:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:06:58,135 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-24 19:06:58,135 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 19:06:58,136 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2024-10-24 19:06:58,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2024-10-24 19:06:58,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2024-10-24 19:06:58,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (51 of 55 remaining) [2024-10-24 19:06:58,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2024-10-24 19:06:58,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2024-10-24 19:06:58,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2024-10-24 19:06:58,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2024-10-24 19:06:58,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2024-10-24 19:06:58,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2024-10-24 19:06:58,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2024-10-24 19:06:58,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2024-10-24 19:06:58,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2024-10-24 19:06:58,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2024-10-24 19:06:58,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2024-10-24 19:06:58,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2024-10-24 19:06:58,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2024-10-24 19:06:58,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2024-10-24 19:06:58,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2024-10-24 19:06:58,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2024-10-24 19:06:58,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (34 of 55 remaining) [2024-10-24 19:06:58,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2024-10-24 19:06:58,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 55 remaining) [2024-10-24 19:06:58,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2024-10-24 19:06:58,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2024-10-24 19:06:58,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (29 of 55 remaining) [2024-10-24 19:06:58,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK (24 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (21 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK (20 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2024-10-24 19:06:58,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2024-10-24 19:06:58,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2024-10-24 19:06:58,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2024-10-24 19:06:58,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2024-10-24 19:06:58,159 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 [2024-10-24 19:06:58,347 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 [2024-10-24 19:06:58,348 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:06:58,392 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:06:58,392 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:06:58,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:06:58 BasicIcfg [2024-10-24 19:06:58,396 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:06:58,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:06:58,397 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:06:58,397 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:06:58,397 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:06:18" (3/4) ... [2024-10-24 19:06:58,399 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 19:06:58,400 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:06:58,401 INFO L158 Benchmark]: Toolchain (without parser) took 42200.02ms. Allocated memory was 79.7MB in the beginning and 5.3GB in the end (delta: 5.2GB). Free memory was 48.1MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2024-10-24 19:06:58,401 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 58.7MB. Free memory was 40.8MB in the beginning and 40.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:06:58,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 799.97ms. Allocated memory is still 79.7MB. Free memory was 47.9MB in the beginning and 42.2MB in the end (delta: 5.8MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-10-24 19:06:58,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.02ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 39.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:06:58,402 INFO L158 Benchmark]: Boogie Preprocessor took 113.59ms. Allocated memory is still 79.7MB. Free memory was 39.0MB in the beginning and 34.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:06:58,402 INFO L158 Benchmark]: RCFGBuilder took 1193.28ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 34.3MB in the beginning and 59.5MB in the end (delta: -25.2MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-10-24 19:06:58,402 INFO L158 Benchmark]: TraceAbstraction took 40005.50ms. Allocated memory was 96.5MB in the beginning and 5.3GB in the end (delta: 5.2GB). Free memory was 58.9MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2024-10-24 19:06:58,403 INFO L158 Benchmark]: Witness Printer took 3.49ms. Allocated memory is still 5.3GB. Free memory is still 2.6GB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:06:58,404 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 58.7MB. Free memory was 40.8MB in the beginning and 40.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 799.97ms. Allocated memory is still 79.7MB. Free memory was 47.9MB in the beginning and 42.2MB in the end (delta: 5.8MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.02ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 39.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.59ms. Allocated memory is still 79.7MB. Free memory was 39.0MB in the beginning and 34.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1193.28ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 34.3MB in the beginning and 59.5MB in the end (delta: -25.2MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 40005.50ms. Allocated memory was 96.5MB in the beginning and 5.3GB in the end (delta: 5.2GB). Free memory was 58.9MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. * Witness Printer took 3.49ms. Allocated memory is still 5.3GB. Free memory is still 2.6GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of large string literal at line 3883, overapproximation of memtrack at line 3883. Possible FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL, EXPR 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 VAL [t1=0, t2=0] [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={7:24}, \old(data)={7:0}, d={7:24}, data={7:0}, res=0, t1=0, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={7:24}, \old(data)={7:0}, arg={7:24}, d={7:24}, data={7:0}, data={7:0}, dev={7:24}, res=0, t1=0, t2=1] [L3931] 0 return 0; VAL [\old(arg)={7:24}, \old(data)={7:0}, \result=0, arg={7:24}, d={7:24}, data={7:0}, data={7:0}, dev={7:24}, res=0, t1=0, t2=1] [L3966] RET, EXPR 0 my_drv_probe(&data) [L3966] 0 probe_ret = my_drv_probe(&data) [L3967] COND TRUE 0 probe_ret==0 [L3968] CALL 0 my_drv_disconnect(&data) [L3937] 0 void *status; VAL [\old(arg)={7:24}, \old(data)={7:0}, arg={7:24}, data={7:0}, data={7:0}, dev={7:24}, status={3:0}, t1=0, t2=1] [L3940] 0 data->shared.a = 3 VAL [\old(arg)={7:24}, arg={7:24}, data={7:0}, dev={7:24}, t1=0, t2=1] [L3943] 0 data->shared.b = 3 VAL [\old(arg)={7:24}, arg={7:24}, data={7:0}, dev={7:24}, t1=0, t2=1] [L3907] 1 data->shared.a = 1 VAL [\old(arg)={7:24}, arg={7:24}, data={7:0}, dev={7:24}, t1=0, t2=1] [L3946] EXPR 0 data->shared.a [L3946] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] CALL 0 reach_error() [L3883] 0 (0) ? (void) (0) : __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_4-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) [L3883] 0 __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_4-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={7:24}, arg={7:24}, data={7:0}, dev={7:24}, t1=0, t2=1] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3961]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 131 locations, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 39.8s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2453 SdHoareTripleChecker+Valid, 12.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2019 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 10.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 135 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5220 IncrementalHoareTripleChecker+Invalid, 5461 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 86 mSDtfsCounter, 5220 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1213occurred in iteration=17, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 163 ConstructedInterpolants, 3 QuantifiedInterpolants, 1568 SizeOfPredicates, 95 NumberOfNonLiveVariables, 1674 ConjunctsInSsa, 175 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 19:06:58,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample