./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml', '-i', '../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:21:04,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:21:04,435 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:21:04,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:21:04,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:21:04,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:21:04,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:21:04,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:21:04,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:21:04,463 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:21:04,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:21:04,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:21:04,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:21:04,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:21:04,464 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:21:04,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:21:04,464 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:21:04,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:21:04,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:21:04,466 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:21:04,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:21:04,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:21:04,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:21:04,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:21:04,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:21:04,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:21:04,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:21:04,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:21:04,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:21:04,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:21:04,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:21:04,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:21:04,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:21:04,467 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-11-07 19:21:04,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:21:04,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:21:04,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:21:04,699 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:21:04,699 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:21:04,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-07 19:21:05,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:21:06,027 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:21:06,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-07 19:21:06,051 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/054902e10/d6e327c8ed874bfcaab04b85364d145f/FLAG2ba1b850a [2024-11-07 19:21:06,065 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/054902e10/d6e327c8ed874bfcaab04b85364d145f [2024-11-07 19:21:06,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:21:06,068 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:21:06,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:21:06,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:21:06,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:21:06,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:21:06" (1/1) ... [2024-11-07 19:21:06,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a9410e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:06, skipping insertion in model container [2024-11-07 19:21:06,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:21:06" (1/1) ... [2024-11-07 19:21:06,115 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:21:06,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:21:06,424 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-07 19:21:06,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6176a70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:06, skipping insertion in model container [2024-11-07 19:21:06,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:21:06,425 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-07 19:21:06,427 INFO L158 Benchmark]: Toolchain (without parser) took 357.59ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 55.9MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 19:21:06,427 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:21:06,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.58ms. Allocated memory is still 100.7MB. Free memory was 73.4MB in the beginning and 55.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 19:21:06,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.58ms. Allocated memory is still 100.7MB. Free memory was 73.4MB in the beginning and 55.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3902]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:21:07,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:21:08,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-07 19:21:08,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:21:08,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:21:08,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:21:08,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:21:08,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:21:08,072 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:21:08,072 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:21:08,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:21:08,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:21:08,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:21:08,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:21:08,073 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:21:08,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:21:08,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:21:08,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:21:08,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:21:08,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:21:08,073 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:21:08,073 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:21:08,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:21:08,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:21:08,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:21:08,075 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-11-07 19:21:08,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:21:08,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:21:08,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:21:08,313 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:21:08,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:21:08,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-07 19:21:09,511 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:21:09,756 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:21:09,757 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-07 19:21:09,774 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/70424a726/8ceac9102836439089ab8aa264c59456/FLAG60633288b [2024-11-07 19:21:09,785 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/70424a726/8ceac9102836439089ab8aa264c59456 [2024-11-07 19:21:09,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:21:09,788 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:21:09,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:21:09,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:21:09,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:21:09,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:21:09" (1/1) ... [2024-11-07 19:21:09,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbd734d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:09, skipping insertion in model container [2024-11-07 19:21:09,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:21:09" (1/1) ... [2024-11-07 19:21:09,826 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:21:10,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:21:10,151 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-07 19:21:10,164 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:21:10,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:21:10,206 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:21:10,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:21:10,304 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:21:10,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10 WrapperNode [2024-11-07 19:21:10,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:21:10,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:21:10,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:21:10,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:21:10,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,344 INFO L138 Inliner]: procedures = 249, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 143 [2024-11-07 19:21:10,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:21:10,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:21:10,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:21:10,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:21:10,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,355 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,373 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 13, 2]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 6, 2]. [2024-11-07 19:21:10,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,409 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:21:10,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:21:10,410 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:21:10,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:21:10,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (1/1) ... [2024-11-07 19:21:10,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:21:10,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:21:10,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 19:21:10,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 19:21:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-07 19:21:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-07 19:21:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-07 19:21:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-07 19:21:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-07 19:21:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 19:21:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 19:21:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-07 19:21:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-07 19:21:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-07 19:21:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 19:21:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-07 19:21:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-07 19:21:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 19:21:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 19:21:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:21:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 19:21:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 19:21:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 19:21:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:21:10,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:21:10,460 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 19:21:10,688 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:21:10,689 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:21:11,027 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:21:11,028 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:21:11,109 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:21:11,109 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 19:21:11,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:21:11 BoogieIcfgContainer [2024-11-07 19:21:11,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:21:11,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:21:11,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:21:11,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:21:11,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:21:09" (1/3) ... [2024-11-07 19:21:11,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eab921c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:21:11, skipping insertion in model container [2024-11-07 19:21:11,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:21:10" (2/3) ... [2024-11-07 19:21:11,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eab921c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:21:11, skipping insertion in model container [2024-11-07 19:21:11,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:21:11" (3/3) ... [2024-11-07 19:21:11,116 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-11-07 19:21:11,125 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:21:11,125 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-11-07 19:21:11,126 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:21:11,190 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 19:21:11,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 132 transitions, 278 flow [2024-11-07 19:21:11,260 INFO L124 PetriNetUnfolderBase]: 18/165 cut-off events. [2024-11-07 19:21:11,261 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:21:11,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 165 events. 18/165 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 528 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2024-11-07 19:21:11,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 132 transitions, 278 flow [2024-11-07 19:21:11,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 130 transitions, 272 flow [2024-11-07 19:21:11,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:21:11,281 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;@6f5bfa9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:21:11,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-07 19:21:11,284 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:21:11,285 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-07 19:21:11,285 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:21:11,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:11,285 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 19:21:11,285 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:11,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:11,288 INFO L85 PathProgramCache]: Analyzing trace with hash 495006, now seen corresponding path program 1 times [2024-11-07 19:21:11,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:11,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860396440] [2024-11-07 19:21:11,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:11,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:11,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:11,297 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:11,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-07 19:21:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:11,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:21:11,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:11,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-07 19:21:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:11,444 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:11,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:11,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860396440] [2024-11-07 19:21:11,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860396440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:11,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:11,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:21:11,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004965155] [2024-11-07 19:21:11,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:11,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:11,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:11,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:11,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-07 19:21:11,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:11,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:11,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-07 19:21:11,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:11,943 INFO L124 PetriNetUnfolderBase]: 707/2019 cut-off events. [2024-11-07 19:21:11,944 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-07 19:21:11,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3235 conditions, 2019 events. 707/2019 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15812 event pairs, 95 based on Foata normal form. 156/1873 useless extension candidates. Maximal degree in co-relation 3062. Up to 1002 conditions per place. [2024-11-07 19:21:11,963 INFO L140 encePairwiseOnDemand]: 114/132 looper letters, 54 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-11-07 19:21:11,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 118 transitions, 360 flow [2024-11-07 19:21:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:21:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:21:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-07 19:21:11,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-07 19:21:11,976 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 272 flow. Second operand 3 states and 264 transitions. [2024-11-07 19:21:11,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 118 transitions, 360 flow [2024-11-07 19:21:11,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 352 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:21:11,982 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-11-07 19:21:11,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-11-07 19:21:11,986 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -12 predicate places. [2024-11-07 19:21:11,986 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-11-07 19:21:11,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:11,986 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:11,986 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 19:21:11,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-07 19:21:12,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:12,190 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:12,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:12,191 INFO L85 PathProgramCache]: Analyzing trace with hash 495007, now seen corresponding path program 1 times [2024-11-07 19:21:12,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:12,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920301470] [2024-11-07 19:21:12,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:12,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:12,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:12,193 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:12,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-07 19:21:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:12,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:21:12,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:12,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 19:21:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:12,302 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:12,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:12,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920301470] [2024-11-07 19:21:12,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920301470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:12,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:12,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:21:12,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047326410] [2024-11-07 19:21:12,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:12,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:12,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:12,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:12,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:12,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2024-11-07 19:21:12,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:12,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:12,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2024-11-07 19:21:12,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:12,682 INFO L124 PetriNetUnfolderBase]: 707/2015 cut-off events. [2024-11-07 19:21:12,682 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-07 19:21:12,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 2015 events. 707/2015 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15782 event pairs, 95 based on Foata normal form. 2/1715 useless extension candidates. Maximal degree in co-relation 479. Up to 1002 conditions per place. [2024-11-07 19:21:12,691 INFO L140 encePairwiseOnDemand]: 126/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-11-07 19:21:12,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 114 transitions, 344 flow [2024-11-07 19:21:12,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:21:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:21:12,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2024-11-07 19:21:12,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465 [2024-11-07 19:21:12,695 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 256 transitions. [2024-11-07 19:21:12,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 114 transitions, 344 flow [2024-11-07 19:21:12,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 114 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:21:12,698 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 216 flow [2024-11-07 19:21:12,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2024-11-07 19:21:12,700 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-07 19:21:12,700 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 216 flow [2024-11-07 19:21:12,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:12,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:12,701 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 19:21:12,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-07 19:21:12,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:12,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:12,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:12,902 INFO L85 PathProgramCache]: Analyzing trace with hash 15345152, now seen corresponding path program 1 times [2024-11-07 19:21:12,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:12,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674307550] [2024-11-07 19:21:12,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:12,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:12,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:12,906 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:12,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-07 19:21:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:12,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 19:21:12,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:12,976 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:12,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:12,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674307550] [2024-11-07 19:21:12,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674307550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:12,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:12,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:21:12,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611815378] [2024-11-07 19:21:12,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:12,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:12,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:12,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:12,978 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-07 19:21:12,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:12,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:12,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-07 19:21:12,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:13,210 INFO L124 PetriNetUnfolderBase]: 706/1746 cut-off events. [2024-11-07 19:21:13,210 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-07 19:21:13,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2983 conditions, 1746 events. 706/1746 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 12301 event pairs, 645 based on Foata normal form. 1/1476 useless extension candidates. Maximal degree in co-relation 883. Up to 1092 conditions per place. [2024-11-07 19:21:13,217 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-11-07 19:21:13,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 113 transitions, 342 flow [2024-11-07 19:21:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:21:13,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:21:13,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-11-07 19:21:13,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6616161616161617 [2024-11-07 19:21:13,221 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 216 flow. Second operand 3 states and 262 transitions. [2024-11-07 19:21:13,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 113 transitions, 342 flow [2024-11-07 19:21:13,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 113 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:21:13,224 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 214 flow [2024-11-07 19:21:13,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-11-07 19:21:13,225 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-07 19:21:13,225 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 214 flow [2024-11-07 19:21:13,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:13,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:13,225 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:13,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-07 19:21:13,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:13,426 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:13,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:13,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1320838570, now seen corresponding path program 1 times [2024-11-07 19:21:13,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:13,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792353059] [2024-11-07 19:21:13,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:13,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:13,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:13,429 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:13,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-07 19:21:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:13,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:21:13,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:13,550 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:13,551 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:13,552 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:13,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-07 19:21:13,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:13,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 53 [2024-11-07 19:21:13,639 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:13,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-11-07 19:21:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:13,649 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:13,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:13,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792353059] [2024-11-07 19:21:13,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792353059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:13,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:13,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:21:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880304253] [2024-11-07 19:21:13,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:13,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:21:13,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:13,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:21:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:21:13,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-07 19:21:13,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:13,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:13,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-07 19:21:13,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:14,298 INFO L124 PetriNetUnfolderBase]: 1153/2725 cut-off events. [2024-11-07 19:21:14,298 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-07 19:21:14,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4683 conditions, 2725 events. 1153/2725 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 20094 event pairs, 684 based on Foata normal form. 1/2376 useless extension candidates. Maximal degree in co-relation 4359. Up to 1845 conditions per place. [2024-11-07 19:21:14,308 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 52 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2024-11-07 19:21:14,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 110 transitions, 345 flow [2024-11-07 19:21:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:21:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:21:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2024-11-07 19:21:14,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-11-07 19:21:14,309 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 214 flow. Second operand 4 states and 319 transitions. [2024-11-07 19:21:14,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 110 transitions, 345 flow [2024-11-07 19:21:14,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 110 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:21:14,314 INFO L231 Difference]: Finished difference. Result has 105 places, 103 transitions, 234 flow [2024-11-07 19:21:14,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=105, PETRI_TRANSITIONS=103} [2024-11-07 19:21:14,315 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -17 predicate places. [2024-11-07 19:21:14,315 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 103 transitions, 234 flow [2024-11-07 19:21:14,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:14,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:14,315 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:14,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-07 19:21:14,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:14,520 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:14,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:14,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1433935613, now seen corresponding path program 1 times [2024-11-07 19:21:14,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:14,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454582933] [2024-11-07 19:21:14,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:14,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:14,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:14,523 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:14,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-07 19:21:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:14,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:21:14,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:14,636 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:14,637 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:14,637 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:14,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-07 19:21:14,715 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:14,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-11-07 19:21:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:14,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:14,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:14,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454582933] [2024-11-07 19:21:14,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454582933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:14,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:14,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:21:14,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596820428] [2024-11-07 19:21:14,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:14,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:21:14,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:14,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:21:14,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:21:14,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-07 19:21:14,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 103 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:14,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:14,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-07 19:21:14,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:15,343 INFO L124 PetriNetUnfolderBase]: 1153/2722 cut-off events. [2024-11-07 19:21:15,344 INFO L125 PetriNetUnfolderBase]: For 217/223 co-relation queries the response was YES. [2024-11-07 19:21:15,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4907 conditions, 2722 events. 1153/2722 cut-off events. For 217/223 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 20125 event pairs, 684 based on Foata normal form. 7/2379 useless extension candidates. Maximal degree in co-relation 2009. Up to 1845 conditions per place. [2024-11-07 19:21:15,357 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 51 selfloop transitions, 6 changer transitions 0/107 dead transitions. [2024-11-07 19:21:15,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 107 transitions, 357 flow [2024-11-07 19:21:15,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:21:15,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:21:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2024-11-07 19:21:15,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2024-11-07 19:21:15,359 INFO L175 Difference]: Start difference. First operand has 105 places, 103 transitions, 234 flow. Second operand 4 states and 318 transitions. [2024-11-07 19:21:15,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 107 transitions, 357 flow [2024-11-07 19:21:15,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 107 transitions, 351 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:21:15,361 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 234 flow [2024-11-07 19:21:15,361 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-11-07 19:21:15,362 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -19 predicate places. [2024-11-07 19:21:15,362 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 234 flow [2024-11-07 19:21:15,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:15,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:15,363 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:15,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-07 19:21:15,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:15,564 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:15,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:15,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1081930850, now seen corresponding path program 1 times [2024-11-07 19:21:15,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:15,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170717794] [2024-11-07 19:21:15,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:15,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:15,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:15,567 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:15,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-07 19:21:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:15,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 19:21:15,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:15,661 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 [2024-11-07 19:21:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:15,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:15,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:15,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170717794] [2024-11-07 19:21:15,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170717794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:15,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:15,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:21:15,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202935007] [2024-11-07 19:21:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:15,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:15,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:15,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:15,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:15,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2024-11-07 19:21:15,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:15,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:15,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2024-11-07 19:21:15,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:16,043 INFO L124 PetriNetUnfolderBase]: 954/2206 cut-off events. [2024-11-07 19:21:16,044 INFO L125 PetriNetUnfolderBase]: For 67/70 co-relation queries the response was YES. [2024-11-07 19:21:16,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3923 conditions, 2206 events. 954/2206 cut-off events. For 67/70 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 15263 event pairs, 736 based on Foata normal form. 0/2028 useless extension candidates. Maximal degree in co-relation 1642. Up to 1362 conditions per place. [2024-11-07 19:21:16,051 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 52 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-07 19:21:16,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 105 transitions, 356 flow [2024-11-07 19:21:16,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:21:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:21:16,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-11-07 19:21:16,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2024-11-07 19:21:16,053 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 234 flow. Second operand 3 states and 246 transitions. [2024-11-07 19:21:16,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 105 transitions, 356 flow [2024-11-07 19:21:16,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 105 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:21:16,056 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 226 flow [2024-11-07 19:21:16,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-11-07 19:21:16,057 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -24 predicate places. [2024-11-07 19:21:16,057 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 226 flow [2024-11-07 19:21:16,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:16,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:16,058 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:16,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-07 19:21:16,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:16,259 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:16,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1081930849, now seen corresponding path program 1 times [2024-11-07 19:21:16,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:16,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110931732] [2024-11-07 19:21:16,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:16,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:16,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:16,262 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:16,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-07 19:21:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:16,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:21:16,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:16,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 19:21:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:16,405 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:16,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:16,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110931732] [2024-11-07 19:21:16,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110931732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:16,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:16,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:21:16,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27874903] [2024-11-07 19:21:16,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:16,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:16,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:16,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:16,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:16,515 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-07 19:21:16,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:16,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:16,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-07 19:21:16,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:16,740 INFO L124 PetriNetUnfolderBase]: 816/1953 cut-off events. [2024-11-07 19:21:16,740 INFO L125 PetriNetUnfolderBase]: For 108/111 co-relation queries the response was YES. [2024-11-07 19:21:16,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3485 conditions, 1953 events. 816/1953 cut-off events. For 108/111 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 13390 event pairs, 531 based on Foata normal form. 88/1857 useless extension candidates. Maximal degree in co-relation 2834. Up to 992 conditions per place. [2024-11-07 19:21:16,747 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 63 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-11-07 19:21:16,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 112 transitions, 394 flow [2024-11-07 19:21:16,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:21:16,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:21:16,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2024-11-07 19:21:16,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-11-07 19:21:16,750 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 226 flow. Second operand 3 states and 261 transitions. [2024-11-07 19:21:16,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 112 transitions, 394 flow [2024-11-07 19:21:16,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 112 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:21:16,752 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 239 flow [2024-11-07 19:21:16,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-11-07 19:21:16,753 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -23 predicate places. [2024-11-07 19:21:16,753 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 239 flow [2024-11-07 19:21:16,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:16,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:16,755 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:16,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-07 19:21:16,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:16,960 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:16,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:16,960 INFO L85 PathProgramCache]: Analyzing trace with hash 899898882, now seen corresponding path program 1 times [2024-11-07 19:21:16,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:16,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549926161] [2024-11-07 19:21:16,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:16,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:16,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:16,962 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:16,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-07 19:21:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:17,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:21:17,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:17,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 19:21:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:17,134 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:17,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:17,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549926161] [2024-11-07 19:21:17,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549926161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:17,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:17,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:21:17,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083876006] [2024-11-07 19:21:17,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:17,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:21:17,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:17,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:21:17,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:21:17,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2024-11-07 19:21:17,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:17,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:17,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2024-11-07 19:21:17,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:17,842 INFO L124 PetriNetUnfolderBase]: 840/2065 cut-off events. [2024-11-07 19:21:17,842 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-07 19:21:17,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3791 conditions, 2065 events. 840/2065 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 14417 event pairs, 129 based on Foata normal form. 145/2132 useless extension candidates. Maximal degree in co-relation 2615. Up to 948 conditions per place. [2024-11-07 19:21:17,851 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 88 selfloop transitions, 11 changer transitions 2/150 dead transitions. [2024-11-07 19:21:17,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 150 transitions, 570 flow [2024-11-07 19:21:17,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:21:17,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:21:17,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 545 transitions. [2024-11-07 19:21:17,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5898268398268398 [2024-11-07 19:21:17,853 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 239 flow. Second operand 7 states and 545 transitions. [2024-11-07 19:21:17,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 150 transitions, 570 flow [2024-11-07 19:21:17,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 150 transitions, 563 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:21:17,855 INFO L231 Difference]: Finished difference. Result has 106 places, 102 transitions, 301 flow [2024-11-07 19:21:17,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=301, PETRI_PLACES=106, PETRI_TRANSITIONS=102} [2024-11-07 19:21:17,859 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-07 19:21:17,860 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 102 transitions, 301 flow [2024-11-07 19:21:17,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:17,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:17,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:17,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-07 19:21:18,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:18,065 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:18,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:18,065 INFO L85 PathProgramCache]: Analyzing trace with hash 899898881, now seen corresponding path program 1 times [2024-11-07 19:21:18,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:18,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189419276] [2024-11-07 19:21:18,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:18,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:18,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:18,067 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:18,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-07 19:21:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:18,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:21:18,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:18,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-07 19:21:18,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:18,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:18,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:18,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189419276] [2024-11-07 19:21:18,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189419276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:18,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:18,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:21:18,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304070644] [2024-11-07 19:21:18,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:18,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:21:18,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:18,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:21:18,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:21:18,361 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2024-11-07 19:21:18,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:18,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:18,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2024-11-07 19:21:18,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:18,774 INFO L124 PetriNetUnfolderBase]: 1177/2657 cut-off events. [2024-11-07 19:21:18,774 INFO L125 PetriNetUnfolderBase]: For 719/722 co-relation queries the response was YES. [2024-11-07 19:21:18,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5223 conditions, 2657 events. 1177/2657 cut-off events. For 719/722 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 18691 event pairs, 139 based on Foata normal form. 64/2602 useless extension candidates. Maximal degree in co-relation 3344. Up to 1078 conditions per place. [2024-11-07 19:21:18,782 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 102 selfloop transitions, 16 changer transitions 0/162 dead transitions. [2024-11-07 19:21:18,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 162 transitions, 669 flow [2024-11-07 19:21:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:21:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:21:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 593 transitions. [2024-11-07 19:21:18,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5615530303030303 [2024-11-07 19:21:18,784 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 301 flow. Second operand 8 states and 593 transitions. [2024-11-07 19:21:18,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 162 transitions, 669 flow [2024-11-07 19:21:18,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 162 transitions, 669 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:21:18,787 INFO L231 Difference]: Finished difference. Result has 118 places, 108 transitions, 405 flow [2024-11-07 19:21:18,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=405, PETRI_PLACES=118, PETRI_TRANSITIONS=108} [2024-11-07 19:21:18,788 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -4 predicate places. [2024-11-07 19:21:18,788 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 108 transitions, 405 flow [2024-11-07 19:21:18,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:18,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:18,789 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:18,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-07 19:21:18,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:18,989 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:18,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash -60742247, now seen corresponding path program 1 times [2024-11-07 19:21:18,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:18,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478528375] [2024-11-07 19:21:18,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:18,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:18,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:18,992 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:18,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-07 19:21:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:19,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:21:19,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:19,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 19:21:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:19,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:19,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:19,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478528375] [2024-11-07 19:21:19,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478528375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:19,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:19,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:21:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553376194] [2024-11-07 19:21:19,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:19,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:21:19,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:19,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:21:19,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:21:19,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2024-11-07 19:21:19,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 108 transitions, 405 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:19,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:19,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2024-11-07 19:21:19,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:19,864 INFO L124 PetriNetUnfolderBase]: 894/2272 cut-off events. [2024-11-07 19:21:19,865 INFO L125 PetriNetUnfolderBase]: For 1955/2044 co-relation queries the response was YES. [2024-11-07 19:21:19,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4889 conditions, 2272 events. 894/2272 cut-off events. For 1955/2044 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 16555 event pairs, 125 based on Foata normal form. 173/2387 useless extension candidates. Maximal degree in co-relation 4487. Up to 1036 conditions per place. [2024-11-07 19:21:19,876 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 92 selfloop transitions, 16 changer transitions 1/160 dead transitions. [2024-11-07 19:21:19,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 160 transitions, 807 flow [2024-11-07 19:21:19,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:21:19,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:21:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 542 transitions. [2024-11-07 19:21:19,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5865800865800865 [2024-11-07 19:21:19,877 INFO L175 Difference]: Start difference. First operand has 118 places, 108 transitions, 405 flow. Second operand 7 states and 542 transitions. [2024-11-07 19:21:19,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 160 transitions, 807 flow [2024-11-07 19:21:19,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 160 transitions, 792 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 19:21:19,882 INFO L231 Difference]: Finished difference. Result has 123 places, 115 transitions, 502 flow [2024-11-07 19:21:19,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=502, PETRI_PLACES=123, PETRI_TRANSITIONS=115} [2024-11-07 19:21:19,882 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 1 predicate places. [2024-11-07 19:21:19,882 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 115 transitions, 502 flow [2024-11-07 19:21:19,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:19,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:19,883 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:19,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-07 19:21:20,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:20,083 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:20,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:20,084 INFO L85 PathProgramCache]: Analyzing trace with hash -60742248, now seen corresponding path program 1 times [2024-11-07 19:21:20,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:20,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165649037] [2024-11-07 19:21:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:20,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:20,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:20,086 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:20,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-07 19:21:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:20,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:21:20,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:20,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-07 19:21:20,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:20,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:20,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:20,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165649037] [2024-11-07 19:21:20,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165649037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:20,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:20,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:21:20,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143020294] [2024-11-07 19:21:20,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:20,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:21:20,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:20,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:21:20,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:21:20,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2024-11-07 19:21:20,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 115 transitions, 502 flow. Second operand has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:20,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:20,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2024-11-07 19:21:20,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:20,846 INFO L124 PetriNetUnfolderBase]: 1336/2921 cut-off events. [2024-11-07 19:21:20,846 INFO L125 PetriNetUnfolderBase]: For 3255/3412 co-relation queries the response was YES. [2024-11-07 19:21:20,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6932 conditions, 2921 events. 1336/2921 cut-off events. For 3255/3412 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 20367 event pairs, 350 based on Foata normal form. 99/2953 useless extension candidates. Maximal degree in co-relation 6110. Up to 1093 conditions per place. [2024-11-07 19:21:20,855 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 108 selfloop transitions, 21 changer transitions 0/175 dead transitions. [2024-11-07 19:21:20,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 175 transitions, 936 flow [2024-11-07 19:21:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:21:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:21:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 593 transitions. [2024-11-07 19:21:20,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5615530303030303 [2024-11-07 19:21:20,856 INFO L175 Difference]: Start difference. First operand has 123 places, 115 transitions, 502 flow. Second operand 8 states and 593 transitions. [2024-11-07 19:21:20,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 175 transitions, 936 flow [2024-11-07 19:21:20,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 175 transitions, 933 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:21:20,862 INFO L231 Difference]: Finished difference. Result has 134 places, 121 transitions, 628 flow [2024-11-07 19:21:20,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=628, PETRI_PLACES=134, PETRI_TRANSITIONS=121} [2024-11-07 19:21:20,862 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 12 predicate places. [2024-11-07 19:21:20,862 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 121 transitions, 628 flow [2024-11-07 19:21:20,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:20,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:20,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:20,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-07 19:21:21,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:21,063 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:21,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:21,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1770422097, now seen corresponding path program 1 times [2024-11-07 19:21:21,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:21,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767572211] [2024-11-07 19:21:21,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:21,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:21,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:21,066 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:21,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-07 19:21:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:21,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:21:21,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:21,206 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:21,206 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:21,206 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:21,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-07 19:21:21,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:21,240 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 88 treesize of output 63 [2024-11-07 19:21:21,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:21,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 53 [2024-11-07 19:21:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:21,302 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:21,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:21,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767572211] [2024-11-07 19:21:21,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767572211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:21,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:21,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:21:21,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242010841] [2024-11-07 19:21:21,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:21,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:21:21,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:21,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:21:21,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:21:21,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2024-11-07 19:21:21,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 121 transitions, 628 flow. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:21,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:21,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2024-11-07 19:21:21,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:22,712 INFO L124 PetriNetUnfolderBase]: 1837/3732 cut-off events. [2024-11-07 19:21:22,712 INFO L125 PetriNetUnfolderBase]: For 7065/7357 co-relation queries the response was YES. [2024-11-07 19:21:22,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10116 conditions, 3732 events. 1837/3732 cut-off events. For 7065/7357 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 26444 event pairs, 747 based on Foata normal form. 126/3815 useless extension candidates. Maximal degree in co-relation 9249. Up to 2298 conditions per place. [2024-11-07 19:21:22,722 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 109 selfloop transitions, 23 changer transitions 0/178 dead transitions. [2024-11-07 19:21:22,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 178 transitions, 1140 flow [2024-11-07 19:21:22,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:21:22,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:21:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2024-11-07 19:21:22,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6174242424242424 [2024-11-07 19:21:22,724 INFO L175 Difference]: Start difference. First operand has 134 places, 121 transitions, 628 flow. Second operand 6 states and 489 transitions. [2024-11-07 19:21:22,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 178 transitions, 1140 flow [2024-11-07 19:21:22,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 178 transitions, 1127 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 19:21:22,731 INFO L231 Difference]: Finished difference. Result has 140 places, 144 transitions, 847 flow [2024-11-07 19:21:22,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=847, PETRI_PLACES=140, PETRI_TRANSITIONS=144} [2024-11-07 19:21:22,732 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-11-07 19:21:22,732 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 144 transitions, 847 flow [2024-11-07 19:21:22,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:22,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:22,732 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:22,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-07 19:21:22,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:22,933 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:22,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:22,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2090777992, now seen corresponding path program 1 times [2024-11-07 19:21:22,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:22,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103964596] [2024-11-07 19:21:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:22,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:22,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:22,936 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:22,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-07 19:21:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:23,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:21:23,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:23,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 19:21:23,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-07 19:21:23,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 19:21:23,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-07 19:21:23,194 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-07 19:21:23,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-07 19:21:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:23,205 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:23,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:23,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103964596] [2024-11-07 19:21:23,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103964596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:23,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:23,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:21:23,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196141398] [2024-11-07 19:21:23,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:23,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:21:23,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:23,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:21:23,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:21:23,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 132 [2024-11-07 19:21:23,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 144 transitions, 847 flow. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:23,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:23,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 132 [2024-11-07 19:21:23,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:24,245 INFO L124 PetriNetUnfolderBase]: 2107/4453 cut-off events. [2024-11-07 19:21:24,246 INFO L125 PetriNetUnfolderBase]: For 9564/9842 co-relation queries the response was YES. [2024-11-07 19:21:24,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13341 conditions, 4453 events. 2107/4453 cut-off events. For 9564/9842 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 33919 event pairs, 430 based on Foata normal form. 71/4433 useless extension candidates. Maximal degree in co-relation 12231. Up to 1805 conditions per place. [2024-11-07 19:21:24,259 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 146 selfloop transitions, 24 changer transitions 0/220 dead transitions. [2024-11-07 19:21:24,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 220 transitions, 1476 flow [2024-11-07 19:21:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:21:24,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:21:24,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 618 transitions. [2024-11-07 19:21:24,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5202020202020202 [2024-11-07 19:21:24,261 INFO L175 Difference]: Start difference. First operand has 140 places, 144 transitions, 847 flow. Second operand 9 states and 618 transitions. [2024-11-07 19:21:24,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 220 transitions, 1476 flow [2024-11-07 19:21:24,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 220 transitions, 1447 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-07 19:21:24,274 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 866 flow [2024-11-07 19:21:24,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=866, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2024-11-07 19:21:24,275 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 22 predicate places. [2024-11-07 19:21:24,275 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 866 flow [2024-11-07 19:21:24,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:24,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:24,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:24,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-07 19:21:24,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:24,476 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:24,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:24,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1414718420, now seen corresponding path program 1 times [2024-11-07 19:21:24,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:24,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550172270] [2024-11-07 19:21:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:24,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:24,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:24,478 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:24,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-07 19:21:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:24,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:21:24,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:24,608 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 5 [2024-11-07 19:21:24,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-07 19:21:24,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 19:21:24,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-07 19:21:24,715 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-07 19:21:24,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-07 19:21:24,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:24,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:24,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:24,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550172270] [2024-11-07 19:21:24,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550172270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:24,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:24,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:21:24,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80578050] [2024-11-07 19:21:24,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:24,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:21:24,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:24,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:21:24,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:21:25,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 132 [2024-11-07 19:21:25,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:25,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:25,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 132 [2024-11-07 19:21:25,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:25,749 INFO L124 PetriNetUnfolderBase]: 2387/5011 cut-off events. [2024-11-07 19:21:25,749 INFO L125 PetriNetUnfolderBase]: For 12012/12355 co-relation queries the response was YES. [2024-11-07 19:21:25,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15014 conditions, 5011 events. 2387/5011 cut-off events. For 12012/12355 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 39196 event pairs, 748 based on Foata normal form. 90/5027 useless extension candidates. Maximal degree in co-relation 13930. Up to 1812 conditions per place. [2024-11-07 19:21:25,766 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 146 selfloop transitions, 24 changer transitions 0/218 dead transitions. [2024-11-07 19:21:25,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 218 transitions, 1503 flow [2024-11-07 19:21:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:21:25,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:21:25,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 618 transitions. [2024-11-07 19:21:25,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5202020202020202 [2024-11-07 19:21:25,768 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 866 flow. Second operand 9 states and 618 transitions. [2024-11-07 19:21:25,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 218 transitions, 1503 flow [2024-11-07 19:21:25,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 218 transitions, 1447 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-07 19:21:25,780 INFO L231 Difference]: Finished difference. Result has 142 places, 140 transitions, 864 flow [2024-11-07 19:21:25,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=864, PETRI_PLACES=142, PETRI_TRANSITIONS=140} [2024-11-07 19:21:25,781 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 20 predicate places. [2024-11-07 19:21:25,781 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 140 transitions, 864 flow [2024-11-07 19:21:25,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:25,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:25,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:25,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 19:21:25,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:25,982 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:25,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:25,983 INFO L85 PathProgramCache]: Analyzing trace with hash 386742127, now seen corresponding path program 1 times [2024-11-07 19:21:25,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:25,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150699420] [2024-11-07 19:21:25,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:25,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:25,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:25,985 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:25,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-07 19:21:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:26,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:21:26,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:26,131 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:26,131 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:26,133 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:26,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-07 19:21:26,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:26,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2024-11-07 19:21:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:26,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:26,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:26,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150699420] [2024-11-07 19:21:26,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150699420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:26,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:26,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:21:26,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754890467] [2024-11-07 19:21:26,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:26,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:21:26,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:26,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:21:26,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:21:26,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-07 19:21:26,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 140 transitions, 864 flow. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:26,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:26,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-07 19:21:26,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:27,201 INFO L124 PetriNetUnfolderBase]: 2542/5265 cut-off events. [2024-11-07 19:21:27,201 INFO L125 PetriNetUnfolderBase]: For 17497/17977 co-relation queries the response was YES. [2024-11-07 19:21:27,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16920 conditions, 5265 events. 2542/5265 cut-off events. For 17497/17977 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 41243 event pairs, 1223 based on Foata normal form. 202/5392 useless extension candidates. Maximal degree in co-relation 15468. Up to 3275 conditions per place. [2024-11-07 19:21:27,218 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 114 selfloop transitions, 35 changer transitions 0/190 dead transitions. [2024-11-07 19:21:27,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 190 transitions, 1488 flow [2024-11-07 19:21:27,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:21:27,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:21:27,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 416 transitions. [2024-11-07 19:21:27,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-07 19:21:27,220 INFO L175 Difference]: Start difference. First operand has 142 places, 140 transitions, 864 flow. Second operand 5 states and 416 transitions. [2024-11-07 19:21:27,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 190 transitions, 1488 flow [2024-11-07 19:21:27,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 190 transitions, 1437 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-07 19:21:27,267 INFO L231 Difference]: Finished difference. Result has 143 places, 159 transitions, 1155 flow [2024-11-07 19:21:27,267 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1155, PETRI_PLACES=143, PETRI_TRANSITIONS=159} [2024-11-07 19:21:27,268 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 21 predicate places. [2024-11-07 19:21:27,268 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 159 transitions, 1155 flow [2024-11-07 19:21:27,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:27,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:27,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:27,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-07 19:21:27,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:27,469 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:27,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:27,469 INFO L85 PathProgramCache]: Analyzing trace with hash -896002718, now seen corresponding path program 1 times [2024-11-07 19:21:27,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:27,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156303080] [2024-11-07 19:21:27,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:27,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:27,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:27,471 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:27,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-07 19:21:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:27,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:21:27,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:27,714 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_81| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_81| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_81|)))) is different from true [2024-11-07 19:21:27,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:27,720 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:27,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:27,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156303080] [2024-11-07 19:21:27,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156303080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:27,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:27,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:21:27,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796798710] [2024-11-07 19:21:27,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:27,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:21:27,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:27,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:21:27,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-07 19:21:27,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 132 [2024-11-07 19:21:27,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 159 transitions, 1155 flow. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:27,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:27,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 132 [2024-11-07 19:21:27,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:28,796 INFO L124 PetriNetUnfolderBase]: 4002/7519 cut-off events. [2024-11-07 19:21:28,796 INFO L125 PetriNetUnfolderBase]: For 24745/24749 co-relation queries the response was YES. [2024-11-07 19:21:28,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26918 conditions, 7519 events. 4002/7519 cut-off events. For 24745/24749 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 57408 event pairs, 1765 based on Foata normal form. 1/7498 useless extension candidates. Maximal degree in co-relation 24825. Up to 3488 conditions per place. [2024-11-07 19:21:28,818 INFO L140 encePairwiseOnDemand]: 106/132 looper letters, 145 selfloop transitions, 40 changer transitions 4/209 dead transitions. [2024-11-07 19:21:28,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 209 transitions, 1801 flow [2024-11-07 19:21:28,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:21:28,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:21:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 310 transitions. [2024-11-07 19:21:28,820 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2024-11-07 19:21:28,820 INFO L175 Difference]: Start difference. First operand has 143 places, 159 transitions, 1155 flow. Second operand 5 states and 310 transitions. [2024-11-07 19:21:28,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 209 transitions, 1801 flow [2024-11-07 19:21:28,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 209 transitions, 1787 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-07 19:21:28,847 INFO L231 Difference]: Finished difference. Result has 150 places, 177 transitions, 1433 flow [2024-11-07 19:21:28,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1141, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1433, PETRI_PLACES=150, PETRI_TRANSITIONS=177} [2024-11-07 19:21:28,847 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 28 predicate places. [2024-11-07 19:21:28,847 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 177 transitions, 1433 flow [2024-11-07 19:21:28,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:28,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:28,847 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:28,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-07 19:21:29,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:29,048 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:29,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:29,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1071101946, now seen corresponding path program 1 times [2024-11-07 19:21:29,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:29,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019293822] [2024-11-07 19:21:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:29,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:29,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:29,050 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:29,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-07 19:21:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:29,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:21:29,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:29,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 19:21:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:29,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:29,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:29,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019293822] [2024-11-07 19:21:29,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019293822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:29,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:29,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:21:29,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400462401] [2024-11-07 19:21:29,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:29,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:29,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:29,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:29,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:29,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-07 19:21:29,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 177 transitions, 1433 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:29,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:29,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-07 19:21:29,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:29,841 INFO L124 PetriNetUnfolderBase]: 2781/5512 cut-off events. [2024-11-07 19:21:29,841 INFO L125 PetriNetUnfolderBase]: For 27450/27906 co-relation queries the response was YES. [2024-11-07 19:21:29,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22890 conditions, 5512 events. 2781/5512 cut-off events. For 27450/27906 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 42790 event pairs, 1436 based on Foata normal form. 102/5429 useless extension candidates. Maximal degree in co-relation 21367. Up to 3831 conditions per place. [2024-11-07 19:21:29,863 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/183 dead transitions. [2024-11-07 19:21:29,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 183 transitions, 1689 flow [2024-11-07 19:21:29,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:21:29,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:21:29,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-07 19:21:29,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-11-07 19:21:29,865 INFO L175 Difference]: Start difference. First operand has 150 places, 177 transitions, 1433 flow. Second operand 3 states and 257 transitions. [2024-11-07 19:21:29,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 183 transitions, 1689 flow [2024-11-07 19:21:29,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 183 transitions, 1601 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-07 19:21:29,909 INFO L231 Difference]: Finished difference. Result has 146 places, 175 transitions, 1351 flow [2024-11-07 19:21:29,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1341, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1351, PETRI_PLACES=146, PETRI_TRANSITIONS=175} [2024-11-07 19:21:29,909 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 24 predicate places. [2024-11-07 19:21:29,909 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 175 transitions, 1351 flow [2024-11-07 19:21:29,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:29,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:29,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:29,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-07 19:21:30,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:30,110 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:30,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:30,110 INFO L85 PathProgramCache]: Analyzing trace with hash -2033727483, now seen corresponding path program 1 times [2024-11-07 19:21:30,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:30,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992810756] [2024-11-07 19:21:30,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:30,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:30,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:30,112 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:30,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-07 19:21:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:30,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 19:21:30,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:30,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-07 19:21:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:30,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:30,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:30,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992810756] [2024-11-07 19:21:30,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992810756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:30,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:30,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:21:30,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028121560] [2024-11-07 19:21:30,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:30,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:21:30,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:30,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:21:30,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:21:30,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2024-11-07 19:21:30,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 175 transitions, 1351 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:30,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:30,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2024-11-07 19:21:30,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:30,777 INFO L124 PetriNetUnfolderBase]: 2781/5504 cut-off events. [2024-11-07 19:21:30,778 INFO L125 PetriNetUnfolderBase]: For 24828/25284 co-relation queries the response was YES. [2024-11-07 19:21:30,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22496 conditions, 5504 events. 2781/5504 cut-off events. For 24828/25284 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 42690 event pairs, 1436 based on Foata normal form. 102/5421 useless extension candidates. Maximal degree in co-relation 21777. Up to 3831 conditions per place. [2024-11-07 19:21:30,801 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 103 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-11-07 19:21:30,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 181 transitions, 1607 flow [2024-11-07 19:21:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:21:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:21:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-07 19:21:30,802 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2024-11-07 19:21:30,802 INFO L175 Difference]: Start difference. First operand has 146 places, 175 transitions, 1351 flow. Second operand 3 states and 257 transitions. [2024-11-07 19:21:30,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 181 transitions, 1607 flow [2024-11-07 19:21:30,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 181 transitions, 1597 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:21:30,840 INFO L231 Difference]: Finished difference. Result has 144 places, 173 transitions, 1347 flow [2024-11-07 19:21:30,840 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1337, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1347, PETRI_PLACES=144, PETRI_TRANSITIONS=173} [2024-11-07 19:21:30,841 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 22 predicate places. [2024-11-07 19:21:30,841 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 173 transitions, 1347 flow [2024-11-07 19:21:30,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:30,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:30,841 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:30,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-07 19:21:31,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:31,042 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:31,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:31,042 INFO L85 PathProgramCache]: Analyzing trace with hash 77536717, now seen corresponding path program 1 times [2024-11-07 19:21:31,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:31,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583882923] [2024-11-07 19:21:31,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:31,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:31,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:31,044 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:31,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-07 19:21:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:31,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 19:21:31,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:31,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:31,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:31,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583882923] [2024-11-07 19:21:31,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583882923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:31,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:31,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:21:31,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463299157] [2024-11-07 19:21:31,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:31,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:21:31,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:31,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:21:31,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:21:31,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2024-11-07 19:21:31,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 173 transitions, 1347 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:31,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:31,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2024-11-07 19:21:31,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:31,355 INFO L124 PetriNetUnfolderBase]: 265/539 cut-off events. [2024-11-07 19:21:31,355 INFO L125 PetriNetUnfolderBase]: For 1921/1984 co-relation queries the response was YES. [2024-11-07 19:21:31,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2259 conditions, 539 events. 265/539 cut-off events. For 1921/1984 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2210 event pairs, 49 based on Foata normal form. 49/568 useless extension candidates. Maximal degree in co-relation 2229. Up to 269 conditions per place. [2024-11-07 19:21:31,358 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 60 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2024-11-07 19:21:31,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 100 transitions, 688 flow [2024-11-07 19:21:31,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:21:31,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:21:31,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2024-11-07 19:21:31,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.634469696969697 [2024-11-07 19:21:31,359 INFO L175 Difference]: Start difference. First operand has 144 places, 173 transitions, 1347 flow. Second operand 4 states and 335 transitions. [2024-11-07 19:21:31,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 100 transitions, 688 flow [2024-11-07 19:21:31,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 100 transitions, 498 flow, removed 33 selfloop flow, removed 32 redundant places. [2024-11-07 19:21:31,363 INFO L231 Difference]: Finished difference. Result has 95 places, 82 transitions, 306 flow [2024-11-07 19:21:31,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=95, PETRI_TRANSITIONS=82} [2024-11-07 19:21:31,363 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -27 predicate places. [2024-11-07 19:21:31,363 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 82 transitions, 306 flow [2024-11-07 19:21:31,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:31,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:31,364 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:31,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2024-11-07 19:21:31,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:31,564 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:31,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:31,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2089947379, now seen corresponding path program 1 times [2024-11-07 19:21:31,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:31,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440959561] [2024-11-07 19:21:31,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:31,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:31,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:31,567 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:31,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-07 19:21:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:31,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:21:31,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:31,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-07 19:21:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:31,840 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:31,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:31,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440959561] [2024-11-07 19:21:31,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440959561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:31,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:31,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 19:21:31,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864853762] [2024-11-07 19:21:31,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:31,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:21:31,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:31,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:21:31,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:21:31,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-07 19:21:31,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 82 transitions, 306 flow. Second operand has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:31,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:31,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-07 19:21:31,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:32,333 INFO L124 PetriNetUnfolderBase]: 294/623 cut-off events. [2024-11-07 19:21:32,333 INFO L125 PetriNetUnfolderBase]: For 913/919 co-relation queries the response was YES. [2024-11-07 19:21:32,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1904 conditions, 623 events. 294/623 cut-off events. For 913/919 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2767 event pairs, 28 based on Foata normal form. 15/628 useless extension candidates. Maximal degree in co-relation 1892. Up to 192 conditions per place. [2024-11-07 19:21:32,335 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 76 selfloop transitions, 29 changer transitions 0/136 dead transitions. [2024-11-07 19:21:32,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 136 transitions, 768 flow [2024-11-07 19:21:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:21:32,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:21:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 861 transitions. [2024-11-07 19:21:32,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5929752066115702 [2024-11-07 19:21:32,337 INFO L175 Difference]: Start difference. First operand has 95 places, 82 transitions, 306 flow. Second operand 11 states and 861 transitions. [2024-11-07 19:21:32,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 136 transitions, 768 flow [2024-11-07 19:21:32,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 136 transitions, 732 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 19:21:32,340 INFO L231 Difference]: Finished difference. Result has 106 places, 99 transitions, 483 flow [2024-11-07 19:21:32,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=483, PETRI_PLACES=106, PETRI_TRANSITIONS=99} [2024-11-07 19:21:32,340 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-07 19:21:32,340 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 99 transitions, 483 flow [2024-11-07 19:21:32,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:32,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:32,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:32,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-07 19:21:32,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:32,541 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:32,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:32,542 INFO L85 PathProgramCache]: Analyzing trace with hash 653982341, now seen corresponding path program 2 times [2024-11-07 19:21:32,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:32,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633362338] [2024-11-07 19:21:32,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:21:32,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:32,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:32,544 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:32,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-07 19:21:32,777 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 19:21:32,777 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:21:32,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:21:32,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:32,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-07 19:21:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:32,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:32,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:32,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633362338] [2024-11-07 19:21:32,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633362338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:32,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:32,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 19:21:32,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103790726] [2024-11-07 19:21:32,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:32,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:21:32,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:32,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:21:32,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:21:32,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-07 19:21:32,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 99 transitions, 483 flow. Second operand has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:32,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:32,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-07 19:21:32,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:33,347 INFO L124 PetriNetUnfolderBase]: 328/700 cut-off events. [2024-11-07 19:21:33,347 INFO L125 PetriNetUnfolderBase]: For 1617/1636 co-relation queries the response was YES. [2024-11-07 19:21:33,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2438 conditions, 700 events. 328/700 cut-off events. For 1617/1636 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3261 event pairs, 44 based on Foata normal form. 18/707 useless extension candidates. Maximal degree in co-relation 2422. Up to 219 conditions per place. [2024-11-07 19:21:33,350 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 80 selfloop transitions, 42 changer transitions 0/153 dead transitions. [2024-11-07 19:21:33,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 153 transitions, 1048 flow [2024-11-07 19:21:33,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:21:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:21:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 861 transitions. [2024-11-07 19:21:33,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5929752066115702 [2024-11-07 19:21:33,351 INFO L175 Difference]: Start difference. First operand has 106 places, 99 transitions, 483 flow. Second operand 11 states and 861 transitions. [2024-11-07 19:21:33,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 153 transitions, 1048 flow [2024-11-07 19:21:33,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 153 transitions, 1002 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-07 19:21:33,354 INFO L231 Difference]: Finished difference. Result has 115 places, 118 transitions, 739 flow [2024-11-07 19:21:33,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=739, PETRI_PLACES=115, PETRI_TRANSITIONS=118} [2024-11-07 19:21:33,355 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -7 predicate places. [2024-11-07 19:21:33,355 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 118 transitions, 739 flow [2024-11-07 19:21:33,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:33,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:33,355 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:33,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-07 19:21:33,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:33,556 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:33,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:33,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1818691607, now seen corresponding path program 3 times [2024-11-07 19:21:33,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:33,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522493903] [2024-11-07 19:21:33,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:21:33,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:33,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:33,558 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:33,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-07 19:21:33,785 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-07 19:21:33,785 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:21:33,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:21:33,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:33,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 19:21:33,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-07 19:21:33,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 19:21:33,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-07 19:21:33,941 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-07 19:21:33,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-07 19:21:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:33,959 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:33,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:33,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522493903] [2024-11-07 19:21:33,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522493903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:33,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:33,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:21:33,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498695179] [2024-11-07 19:21:33,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:33,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:21:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:21:33,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:21:34,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 132 [2024-11-07 19:21:34,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 118 transitions, 739 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:34,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:34,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 132 [2024-11-07 19:21:34,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:34,247 INFO L124 PetriNetUnfolderBase]: 327/681 cut-off events. [2024-11-07 19:21:34,247 INFO L125 PetriNetUnfolderBase]: For 2133/2159 co-relation queries the response was YES. [2024-11-07 19:21:34,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2718 conditions, 681 events. 327/681 cut-off events. For 2133/2159 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3139 event pairs, 196 based on Foata normal form. 7/666 useless extension candidates. Maximal degree in co-relation 2698. Up to 594 conditions per place. [2024-11-07 19:21:34,251 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 86 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2024-11-07 19:21:34,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 112 transitions, 907 flow [2024-11-07 19:21:34,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:21:34,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:21:34,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 271 transitions. [2024-11-07 19:21:34,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5132575757575758 [2024-11-07 19:21:34,252 INFO L175 Difference]: Start difference. First operand has 115 places, 118 transitions, 739 flow. Second operand 4 states and 271 transitions. [2024-11-07 19:21:34,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 112 transitions, 907 flow [2024-11-07 19:21:34,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 112 transitions, 845 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-07 19:21:34,256 INFO L231 Difference]: Finished difference. Result has 107 places, 112 transitions, 673 flow [2024-11-07 19:21:34,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=673, PETRI_PLACES=107, PETRI_TRANSITIONS=112} [2024-11-07 19:21:34,257 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -15 predicate places. [2024-11-07 19:21:34,257 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 112 transitions, 673 flow [2024-11-07 19:21:34,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:34,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:34,257 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:34,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-07 19:21:34,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:34,458 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:34,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:34,458 INFO L85 PathProgramCache]: Analyzing trace with hash 616098376, now seen corresponding path program 1 times [2024-11-07 19:21:34,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:34,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243409115] [2024-11-07 19:21:34,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:34,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:34,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:34,460 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:34,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-07 19:21:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:34,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:21:34,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:34,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-07 19:21:34,738 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-07 19:21:34,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-07 19:21:34,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2024-11-07 19:21:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:34,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:34,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:34,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243409115] [2024-11-07 19:21:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243409115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:34,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:34,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:21:34,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301726289] [2024-11-07 19:21:34,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:34,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:21:34,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:34,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:21:34,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:21:34,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 132 [2024-11-07 19:21:34,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 112 transitions, 673 flow. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:34,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:34,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 132 [2024-11-07 19:21:34,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:35,038 INFO L124 PetriNetUnfolderBase]: 327/680 cut-off events. [2024-11-07 19:21:35,038 INFO L125 PetriNetUnfolderBase]: For 1576/1602 co-relation queries the response was YES. [2024-11-07 19:21:35,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2631 conditions, 680 events. 327/680 cut-off events. For 1576/1602 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3203 event pairs, 137 based on Foata normal form. 7/667 useless extension candidates. Maximal degree in co-relation 2611. Up to 407 conditions per place. [2024-11-07 19:21:35,041 INFO L140 encePairwiseOnDemand]: 127/132 looper letters, 96 selfloop transitions, 7 changer transitions 0/125 dead transitions. [2024-11-07 19:21:35,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 125 transitions, 973 flow [2024-11-07 19:21:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:21:35,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:21:35,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 291 transitions. [2024-11-07 19:21:35,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5511363636363636 [2024-11-07 19:21:35,041 INFO L175 Difference]: Start difference. First operand has 107 places, 112 transitions, 673 flow. Second operand 4 states and 291 transitions. [2024-11-07 19:21:35,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 125 transitions, 973 flow [2024-11-07 19:21:35,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 125 transitions, 965 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 19:21:35,045 INFO L231 Difference]: Finished difference. Result has 106 places, 111 transitions, 677 flow [2024-11-07 19:21:35,045 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=677, PETRI_PLACES=106, PETRI_TRANSITIONS=111} [2024-11-07 19:21:35,045 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-07 19:21:35,045 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 111 transitions, 677 flow [2024-11-07 19:21:35,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:35,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:35,046 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:35,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-07 19:21:35,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:35,246 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:35,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:35,247 INFO L85 PathProgramCache]: Analyzing trace with hash -125265219, now seen corresponding path program 1 times [2024-11-07 19:21:35,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:35,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719389443] [2024-11-07 19:21:35,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:21:35,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:35,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:35,250 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:35,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-07 19:21:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:21:35,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-07 19:21:35,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:35,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 19:21:35,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 19:21:35,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 19:21:35,619 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:35,619 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:35,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-07 19:21:35,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:35,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 45 [2024-11-07 19:21:35,759 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:35,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 45 [2024-11-07 19:21:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:35,767 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:35,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:35,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719389443] [2024-11-07 19:21:35,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719389443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:35,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:35,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:21:35,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573495466] [2024-11-07 19:21:35,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:35,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 19:21:35,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:35,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 19:21:35,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 19:21:36,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 132 [2024-11-07 19:21:36,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 111 transitions, 677 flow. Second operand has 8 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:36,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:36,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 132 [2024-11-07 19:21:36,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:37,111 INFO L124 PetriNetUnfolderBase]: 483/977 cut-off events. [2024-11-07 19:21:37,111 INFO L125 PetriNetUnfolderBase]: For 2061/2061 co-relation queries the response was YES. [2024-11-07 19:21:37,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3744 conditions, 977 events. 483/977 cut-off events. For 2061/2061 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4803 event pairs, 52 based on Foata normal form. 1/972 useless extension candidates. Maximal degree in co-relation 3724. Up to 291 conditions per place. [2024-11-07 19:21:37,115 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 115 selfloop transitions, 44 changer transitions 0/176 dead transitions. [2024-11-07 19:21:37,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 176 transitions, 1378 flow [2024-11-07 19:21:37,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:21:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:21:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 755 transitions. [2024-11-07 19:21:37,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.571969696969697 [2024-11-07 19:21:37,116 INFO L175 Difference]: Start difference. First operand has 106 places, 111 transitions, 677 flow. Second operand 10 states and 755 transitions. [2024-11-07 19:21:37,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 176 transitions, 1378 flow [2024-11-07 19:21:37,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 176 transitions, 1358 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 19:21:37,121 INFO L231 Difference]: Finished difference. Result has 115 places, 123 transitions, 870 flow [2024-11-07 19:21:37,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=870, PETRI_PLACES=115, PETRI_TRANSITIONS=123} [2024-11-07 19:21:37,121 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -7 predicate places. [2024-11-07 19:21:37,121 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 123 transitions, 870 flow [2024-11-07 19:21:37,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:37,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:37,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:37,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2024-11-07 19:21:37,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:37,322 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:37,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:37,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1476178867, now seen corresponding path program 2 times [2024-11-07 19:21:37,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:37,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507927282] [2024-11-07 19:21:37,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:21:37,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:37,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:37,326 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:37,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-07 19:21:37,520 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 19:21:37,521 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:21:37,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:21:37,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:37,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-07 19:21:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:37,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:37,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:37,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507927282] [2024-11-07 19:21:37,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507927282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:37,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:37,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 19:21:37,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643366944] [2024-11-07 19:21:37,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:37,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:21:37,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:37,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:21:37,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:21:37,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-07 19:21:37,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 123 transitions, 870 flow. Second operand has 7 states, 7 states have (on average 74.14285714285714) internal successors, (519), 7 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:37,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:37,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-07 19:21:37,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:38,215 INFO L124 PetriNetUnfolderBase]: 534/1184 cut-off events. [2024-11-07 19:21:38,215 INFO L125 PetriNetUnfolderBase]: For 3727/3756 co-relation queries the response was YES. [2024-11-07 19:21:38,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4763 conditions, 1184 events. 534/1184 cut-off events. For 3727/3756 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6556 event pairs, 87 based on Foata normal form. 42/1206 useless extension candidates. Maximal degree in co-relation 4740. Up to 385 conditions per place. [2024-11-07 19:21:38,219 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 114 selfloop transitions, 66 changer transitions 0/208 dead transitions. [2024-11-07 19:21:38,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 208 transitions, 1740 flow [2024-11-07 19:21:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 19:21:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 19:21:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1039 transitions. [2024-11-07 19:21:38,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6054778554778555 [2024-11-07 19:21:38,221 INFO L175 Difference]: Start difference. First operand has 115 places, 123 transitions, 870 flow. Second operand 13 states and 1039 transitions. [2024-11-07 19:21:38,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 208 transitions, 1740 flow [2024-11-07 19:21:38,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 208 transitions, 1691 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-07 19:21:38,227 INFO L231 Difference]: Finished difference. Result has 129 places, 143 transitions, 1277 flow [2024-11-07 19:21:38,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1277, PETRI_PLACES=129, PETRI_TRANSITIONS=143} [2024-11-07 19:21:38,228 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 7 predicate places. [2024-11-07 19:21:38,228 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 143 transitions, 1277 flow [2024-11-07 19:21:38,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.14285714285714) internal successors, (519), 7 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:38,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:38,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:38,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-07 19:21:38,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:38,428 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:38,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:38,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1518858053, now seen corresponding path program 3 times [2024-11-07 19:21:38,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:38,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894215484] [2024-11-07 19:21:38,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:21:38,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:38,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:38,431 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:38,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-07 19:21:38,647 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-07 19:21:38,647 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:21:38,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:21:38,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:38,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-07 19:21:38,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:38,705 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:38,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:38,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894215484] [2024-11-07 19:21:38,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894215484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:38,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:38,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 19:21:38,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399748185] [2024-11-07 19:21:38,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:38,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:21:38,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:38,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:21:38,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:21:38,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2024-11-07 19:21:38,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 143 transitions, 1277 flow. Second operand has 7 states, 7 states have (on average 74.14285714285714) internal successors, (519), 7 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:38,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:21:38,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2024-11-07 19:21:38,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:21:39,272 INFO L124 PetriNetUnfolderBase]: 344/841 cut-off events. [2024-11-07 19:21:39,272 INFO L125 PetriNetUnfolderBase]: For 4154/4175 co-relation queries the response was YES. [2024-11-07 19:21:39,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3665 conditions, 841 events. 344/841 cut-off events. For 4154/4175 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4163 event pairs, 61 based on Foata normal form. 31/859 useless extension candidates. Maximal degree in co-relation 3636. Up to 259 conditions per place. [2024-11-07 19:21:39,276 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 105 selfloop transitions, 56 changer transitions 0/189 dead transitions. [2024-11-07 19:21:39,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 189 transitions, 1768 flow [2024-11-07 19:21:39,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:21:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:21:39,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 884 transitions. [2024-11-07 19:21:39,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6088154269972452 [2024-11-07 19:21:39,277 INFO L175 Difference]: Start difference. First operand has 129 places, 143 transitions, 1277 flow. Second operand 11 states and 884 transitions. [2024-11-07 19:21:39,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 189 transitions, 1768 flow [2024-11-07 19:21:39,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 189 transitions, 1605 flow, removed 49 selfloop flow, removed 8 redundant places. [2024-11-07 19:21:39,288 INFO L231 Difference]: Finished difference. Result has 137 places, 141 transitions, 1367 flow [2024-11-07 19:21:39,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1367, PETRI_PLACES=137, PETRI_TRANSITIONS=141} [2024-11-07 19:21:39,288 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 15 predicate places. [2024-11-07 19:21:39,288 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 141 transitions, 1367 flow [2024-11-07 19:21:39,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.14285714285714) internal successors, (519), 7 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:21:39,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:21:39,288 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:21:39,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-07 19:21:39,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:39,489 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-07 19:21:39,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:21:39,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2125892883, now seen corresponding path program 4 times [2024-11-07 19:21:39,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:21:39,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741545182] [2024-11-07 19:21:39,490 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:21:39,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:21:39,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:21:39,491 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:21:39,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-07 19:21:39,743 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:21:39,743 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:21:39,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 19:21:39,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:21:39,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 19:21:39,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 19:21:39,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 19:21:39,894 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:39,894 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 19:21:39,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-07 19:21:39,944 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:39,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 75 [2024-11-07 19:21:41,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 19:21:41,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-07 19:21:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:21:41,957 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:21:41,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:21:41,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741545182] [2024-11-07 19:21:41,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741545182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:21:41,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:21:41,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 19:21:41,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340154683] [2024-11-07 19:21:41,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:21:41,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:21:41,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:21:41,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:21:41,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=54, Unknown=1, NotChecked=0, Total=72 [2024-11-07 19:21:43,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:21:45,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:21:47,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:21:49,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:21:50,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:21:52,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:21:54,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:21:56,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:21:58,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:21:59,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:01,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:05,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:07,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:09,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:11,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:13,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:14,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:16,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:18,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:20,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:22,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:24,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:25,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:27,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:28,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:30,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:32,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:34,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:36,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:38,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:40,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:42,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:44,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:45,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:47,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-07 19:22:47,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 132 [2024-11-07 19:22:47,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 141 transitions, 1367 flow. Second operand has 9 states, 9 states have (on average 34.111111111111114) internal successors, (307), 9 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:22:47,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:22:47,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 132 [2024-11-07 19:22:47,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand