./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:26:26,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:26:26,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:26:26,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:26:26,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:26:26,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:26:26,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:26:26,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:26:26,796 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:26:26,796 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:26:26,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:26:26,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:26:26,797 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:26:26,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:26:26,798 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:26:26,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:26:26,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:26:26,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:26:26,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:26:26,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:26:26,801 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:26:26,802 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:26:26,802 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:26:26,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:26:26,803 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:26:26,803 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:26:26,804 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:26:26,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:26:26,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:26:26,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:26:26,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:26:26,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:26:26,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:26:26,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:26:26,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:26:26,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:26:26,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:26:26,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:26:26,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:26:26,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:26:26,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:26:26,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:26:26,809 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 [2024-10-13 12:26:27,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:26:27,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:26:27,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:26:27,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:26:27,169 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:26:27,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-10-13 12:26:28,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:26:29,272 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:26:29,273 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-10-13 12:26:29,313 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d134263/568164c74c2a48dcb55a269fba3b6037/FLAGb1e4c196e [2024-10-13 12:26:29,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d134263/568164c74c2a48dcb55a269fba3b6037 [2024-10-13 12:26:29,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:26:29,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:26:29,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:26:29,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:26:29,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:26:29,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:26:29" (1/1) ... [2024-10-13 12:26:29,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@475f0a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:29, skipping insertion in model container [2024-10-13 12:26:29,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:26:29" (1/1) ... [2024-10-13 12:26:29,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:26:30,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:26:30,050 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-13 12:26:30,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6146b259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:30, skipping insertion in model container [2024-10-13 12:26:30,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:26:30,052 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 12:26:30,054 INFO L158 Benchmark]: Toolchain (without parser) took 712.46ms. Allocated memory was 157.3MB in the beginning and 222.3MB in the end (delta: 65.0MB). Free memory was 80.4MB in the beginning and 185.1MB in the end (delta: -104.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2024-10-13 12:26:30,055 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 157.3MB. Free memory was 108.4MB in the beginning and 108.2MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:26:30,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.74ms. Allocated memory was 157.3MB in the beginning and 222.3MB in the end (delta: 65.0MB). Free memory was 80.2MB in the beginning and 185.1MB in the end (delta: -104.8MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2024-10-13 12:26:30,057 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 157.3MB. Free memory was 108.4MB in the beginning and 108.2MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 709.74ms. Allocated memory was 157.3MB in the beginning and 222.3MB in the end (delta: 65.0MB). Free memory was 80.2MB in the beginning and 185.1MB in the end (delta: -104.8MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:26:32,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:26:32,505 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-13 12:26:32,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:26:32,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:26:32,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:26:32,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:26:32,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:26:32,550 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:26:32,550 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:26:32,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:26:32,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:26:32,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:26:32,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:26:32,553 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:26:32,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:26:32,554 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:26:32,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:26:32,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:26:32,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:26:32,555 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:26:32,556 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:26:32,556 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:26:32,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:26:32,556 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:26:32,560 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 12:26:32,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:26:32,561 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 12:26:32,561 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:26:32,561 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:26:32,561 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:26:32,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:26:32,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:26:32,562 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:26:32,562 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:26:32,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:26:32,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:26:32,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:26:32,563 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 12:26:32,563 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 12:26:32,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:26:32,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:26:32,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:26:32,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:26:32,564 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 12:26:32,565 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 [2024-10-13 12:26:32,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:26:32,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:26:32,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:26:32,978 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:26:32,979 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:26:32,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-10-13 12:26:34,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:26:35,217 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:26:35,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-10-13 12:26:35,267 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/211b162a2/0540557dadb245dc88ece5ffea4df02d/FLAGd802e1996 [2024-10-13 12:26:35,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/211b162a2/0540557dadb245dc88ece5ffea4df02d [2024-10-13 12:26:35,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:26:35,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:26:35,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:26:35,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:26:35,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:26:35,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:26:35" (1/1) ... [2024-10-13 12:26:35,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f562d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:35, skipping insertion in model container [2024-10-13 12:26:35,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:26:35" (1/1) ... [2024-10-13 12:26:35,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:26:35,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:26:35,926 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 12:26:35,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:26:35,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:26:35,992 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:26:36,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:26:36,166 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:26:36,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36 WrapperNode [2024-10-13 12:26:36,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:26:36,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:26:36,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:26:36,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:26:36,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,242 INFO L138 Inliner]: procedures = 249, calls = 44, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 143 [2024-10-13 12:26:36,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:26:36,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:26:36,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:26:36,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:26:36,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,304 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]. [2024-10-13 12:26:36,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,341 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:26:36,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:26:36,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:26:36,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:26:36,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (1/1) ... [2024-10-13 12:26:36,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:26:36,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:26:36,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 12:26:36,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 12:26:36,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 12:26:36,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 12:26:36,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-13 12:26:36,463 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-13 12:26:36,463 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-13 12:26:36,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:26:36,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 12:26:36,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 12:26:36,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 12:26:36,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 12:26:36,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-13 12:26:36,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 12:26:36,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 12:26:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-13 12:26:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:26:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:26:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 12:26:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 12:26:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 12:26:36,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:26:36,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:26:36,468 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:26:36,826 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:26:36,829 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:26:37,362 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:26:37,363 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:26:37,525 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:26:37,526 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:26:37,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:26:37 BoogieIcfgContainer [2024-10-13 12:26:37,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:26:37,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:26:37,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:26:37,531 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:26:37,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:26:35" (1/3) ... [2024-10-13 12:26:37,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbf8fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:26:37, skipping insertion in model container [2024-10-13 12:26:37,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:36" (2/3) ... [2024-10-13 12:26:37,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbf8fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:26:37, skipping insertion in model container [2024-10-13 12:26:37,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:26:37" (3/3) ... [2024-10-13 12:26:37,534 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2024-10-13 12:26:37,551 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:26:37,551 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-10-13 12:26:37,552 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:26:37,629 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 12:26:37,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 126 transitions, 266 flow [2024-10-13 12:26:37,739 INFO L124 PetriNetUnfolderBase]: 18/159 cut-off events. [2024-10-13 12:26:37,740 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 12:26:37,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 159 events. 18/159 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 480 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2024-10-13 12:26:37,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 126 transitions, 266 flow [2024-10-13 12:26:37,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 124 transitions, 260 flow [2024-10-13 12:26:37,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:26:37,772 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;@60db8e3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:26:37,772 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-10-13 12:26:37,777 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:26:37,777 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-13 12:26:37,777 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:26:37,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:37,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-13 12:26:37,779 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:37,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash 498015, now seen corresponding path program 1 times [2024-10-13 12:26:37,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:37,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454671269] [2024-10-13 12:26:37,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:37,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:37,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:37,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:37,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-13 12:26:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:37,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 12:26:37,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:38,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 12:26:38,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:38,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:38,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:38,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454671269] [2024-10-13 12:26:38,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454671269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:38,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:38,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:26:38,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291594078] [2024-10-13 12:26:38,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:38,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:26:38,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:26:38,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:26:38,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-10-13 12:26:38,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 124 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:38,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:38,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-10-13 12:26:38,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:39,550 INFO L124 PetriNetUnfolderBase]: 3071/7677 cut-off events. [2024-10-13 12:26:39,550 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-13 12:26:39,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12595 conditions, 7677 events. 3071/7677 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 74029 event pairs, 407 based on Foata normal form. 588/5627 useless extension candidates. Maximal degree in co-relation 12356. Up to 4146 conditions per place. [2024-10-13 12:26:39,620 INFO L140 encePairwiseOnDemand]: 108/126 looper letters, 78 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-10-13 12:26:39,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 124 transitions, 420 flow [2024-10-13 12:26:39,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:26:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:26:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2024-10-13 12:26:39,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-10-13 12:26:39,637 INFO L175 Difference]: Start difference. First operand has 116 places, 124 transitions, 260 flow. Second operand 3 states and 234 transitions. [2024-10-13 12:26:39,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 124 transitions, 420 flow [2024-10-13 12:26:39,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 124 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 12:26:39,646 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 212 flow [2024-10-13 12:26:39,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2024-10-13 12:26:39,652 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -12 predicate places. [2024-10-13 12:26:39,652 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 212 flow [2024-10-13 12:26:39,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:39,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:39,653 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-13 12:26:39,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-13 12:26:39,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:39,858 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:39,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:39,860 INFO L85 PathProgramCache]: Analyzing trace with hash 498016, now seen corresponding path program 1 times [2024-10-13 12:26:39,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:39,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008797434] [2024-10-13 12:26:39,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:39,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:39,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:39,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:39,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-13 12:26:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:40,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 12:26:40,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:40,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 12:26:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:40,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:40,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:40,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008797434] [2024-10-13 12:26:40,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008797434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:40,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:40,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:26:40,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079019416] [2024-10-13 12:26:40,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:40,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:26:40,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:40,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:26:40,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:26:40,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-10-13 12:26:40,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:40,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:40,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-10-13 12:26:40,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:41,179 INFO L124 PetriNetUnfolderBase]: 3071/7673 cut-off events. [2024-10-13 12:26:41,179 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-10-13 12:26:41,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12708 conditions, 7673 events. 3071/7673 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 73950 event pairs, 407 based on Foata normal form. 2/5037 useless extension candidates. Maximal degree in co-relation 1475. Up to 4146 conditions per place. [2024-10-13 12:26:41,238 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 76 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-10-13 12:26:41,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 120 transitions, 404 flow [2024-10-13 12:26:41,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:26:41,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:26:41,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-10-13 12:26:41,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5978835978835979 [2024-10-13 12:26:41,242 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 212 flow. Second operand 3 states and 226 transitions. [2024-10-13 12:26:41,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 120 transitions, 404 flow [2024-10-13 12:26:41,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 120 transitions, 400 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:26:41,249 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 204 flow [2024-10-13 12:26:41,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2024-10-13 12:26:41,250 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -16 predicate places. [2024-10-13 12:26:41,250 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 204 flow [2024-10-13 12:26:41,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:41,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:41,251 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-13 12:26:41,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-13 12:26:41,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:41,452 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:41,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash 15437293, now seen corresponding path program 1 times [2024-10-13 12:26:41,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:41,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305900359] [2024-10-13 12:26:41,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:41,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:41,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:41,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:41,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-13 12:26:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:41,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:26:41,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:41,608 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:41,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:41,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305900359] [2024-10-13 12:26:41,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305900359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:41,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:41,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:26:41,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311606875] [2024-10-13 12:26:41,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:41,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:26:41,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:41,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:26:41,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:26:41,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 126 [2024-10-13 12:26:41,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:41,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:41,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 126 [2024-10-13 12:26:41,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:42,419 INFO L124 PetriNetUnfolderBase]: 3070/5968 cut-off events. [2024-10-13 12:26:42,420 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2024-10-13 12:26:42,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11003 conditions, 5968 events. 3070/5968 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 44328 event pairs, 2805 based on Foata normal form. 1/4093 useless extension candidates. Maximal degree in co-relation 5422. Up to 4464 conditions per place. [2024-10-13 12:26:42,461 INFO L140 encePairwiseOnDemand]: 123/126 looper letters, 76 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2024-10-13 12:26:42,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 119 transitions, 402 flow [2024-10-13 12:26:42,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:26:42,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:26:42,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-10-13 12:26:42,464 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6137566137566137 [2024-10-13 12:26:42,464 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 204 flow. Second operand 3 states and 232 transitions. [2024-10-13 12:26:42,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 119 transitions, 402 flow [2024-10-13 12:26:42,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 119 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:26:42,468 INFO L231 Difference]: Finished difference. Result has 100 places, 97 transitions, 202 flow [2024-10-13 12:26:42,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=100, PETRI_TRANSITIONS=97} [2024-10-13 12:26:42,469 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -16 predicate places. [2024-10-13 12:26:42,469 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 97 transitions, 202 flow [2024-10-13 12:26:42,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:42,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:42,470 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:42,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-13 12:26:42,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:42,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:42,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:42,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1057546939, now seen corresponding path program 1 times [2024-10-13 12:26:42,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:42,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027252873] [2024-10-13 12:26:42,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:42,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:42,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:42,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:42,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-13 12:26:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:42,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 12:26:42,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:42,847 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:26:42,848 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:26:42,849 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:26:42,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-10-13 12:26:42,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:26:42,920 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 [2024-10-13 12:26:42,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:26:42,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-10-13 12:26:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:42,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:42,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:42,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027252873] [2024-10-13 12:26:42,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027252873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:42,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:42,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:26:42,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12610089] [2024-10-13 12:26:42,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:42,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:26:42,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:42,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:26:42,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:26:43,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 126 [2024-10-13 12:26:43,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 97 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:43,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:43,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 126 [2024-10-13 12:26:43,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:44,260 INFO L124 PetriNetUnfolderBase]: 3598/6893 cut-off events. [2024-10-13 12:26:44,261 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-10-13 12:26:44,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12746 conditions, 6893 events. 3598/6893 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 51032 event pairs, 2343 based on Foata normal form. 1/4762 useless extension candidates. Maximal degree in co-relation 11777. Up to 5605 conditions per place. [2024-10-13 12:26:44,404 INFO L140 encePairwiseOnDemand]: 119/126 looper letters, 64 selfloop transitions, 6 changer transitions 0/106 dead transitions. [2024-10-13 12:26:44,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 106 transitions, 361 flow [2024-10-13 12:26:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:26:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:26:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-10-13 12:26:44,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5297619047619048 [2024-10-13 12:26:44,406 INFO L175 Difference]: Start difference. First operand has 100 places, 97 transitions, 202 flow. Second operand 4 states and 267 transitions. [2024-10-13 12:26:44,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 106 transitions, 361 flow [2024-10-13 12:26:44,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 106 transitions, 357 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:26:44,420 INFO L231 Difference]: Finished difference. Result has 99 places, 97 transitions, 222 flow [2024-10-13 12:26:44,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=99, PETRI_TRANSITIONS=97} [2024-10-13 12:26:44,423 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -17 predicate places. [2024-10-13 12:26:44,423 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 97 transitions, 222 flow [2024-10-13 12:26:44,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:44,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:44,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:44,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-10-13 12:26:44,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:44,628 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:44,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:44,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1758384081, now seen corresponding path program 1 times [2024-10-13 12:26:44,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:44,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328852565] [2024-10-13 12:26:44,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:44,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:44,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:44,634 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:44,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-13 12:26:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:44,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 12:26:44,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:44,808 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:26:44,809 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:26:44,809 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:26:44,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-10-13 12:26:44,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:26:44,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-10-13 12:26:44,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:44,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:44,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:44,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328852565] [2024-10-13 12:26:44,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328852565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:44,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:44,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:26:44,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801726436] [2024-10-13 12:26:44,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:44,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:26:44,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:44,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:26:44,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:26:45,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 126 [2024-10-13 12:26:45,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 97 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:45,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:45,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 126 [2024-10-13 12:26:45,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:46,135 INFO L124 PetriNetUnfolderBase]: 3598/6890 cut-off events. [2024-10-13 12:26:46,135 INFO L125 PetriNetUnfolderBase]: For 440/440 co-relation queries the response was YES. [2024-10-13 12:26:46,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13121 conditions, 6890 events. 3598/6890 cut-off events. For 440/440 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 51038 event pairs, 2343 based on Foata normal form. 1/5099 useless extension candidates. Maximal degree in co-relation 7001. Up to 5605 conditions per place. [2024-10-13 12:26:46,180 INFO L140 encePairwiseOnDemand]: 119/126 looper letters, 63 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-10-13 12:26:46,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 373 flow [2024-10-13 12:26:46,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:26:46,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:26:46,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2024-10-13 12:26:46,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-10-13 12:26:46,182 INFO L175 Difference]: Start difference. First operand has 99 places, 97 transitions, 222 flow. Second operand 4 states and 266 transitions. [2024-10-13 12:26:46,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 373 flow [2024-10-13 12:26:46,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 103 transitions, 367 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:26:46,184 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 222 flow [2024-10-13 12:26:46,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2024-10-13 12:26:46,185 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -19 predicate places. [2024-10-13 12:26:46,185 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 222 flow [2024-10-13 12:26:46,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:46,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:46,186 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:46,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-13 12:26:46,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:46,388 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:46,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:46,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1629828376, now seen corresponding path program 1 times [2024-10-13 12:26:46,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:46,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857348221] [2024-10-13 12:26:46,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:46,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:46,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:46,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:46,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-13 12:26:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:46,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:26:46,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:46,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 12:26:46,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:46,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:46,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:46,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857348221] [2024-10-13 12:26:46,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857348221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:46,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:46,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:26:46,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215614652] [2024-10-13 12:26:46,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:46,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:26:46,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:46,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:26:46,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:26:46,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-10-13 12:26:46,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:46,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:46,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-10-13 12:26:46,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:48,162 INFO L124 PetriNetUnfolderBase]: 2554/6244 cut-off events. [2024-10-13 12:26:48,163 INFO L125 PetriNetUnfolderBase]: For 363/363 co-relation queries the response was YES. [2024-10-13 12:26:48,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10811 conditions, 6244 events. 2554/6244 cut-off events. For 363/363 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 56248 event pairs, 127 based on Foata normal form. 0/4522 useless extension candidates. Maximal degree in co-relation 5200. Up to 2287 conditions per place. [2024-10-13 12:26:48,216 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 142 selfloop transitions, 15 changer transitions 1/193 dead transitions. [2024-10-13 12:26:48,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 193 transitions, 763 flow [2024-10-13 12:26:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:26:48,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 12:26:48,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2024-10-13 12:26:48,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5257936507936508 [2024-10-13 12:26:48,219 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 222 flow. Second operand 8 states and 530 transitions. [2024-10-13 12:26:48,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 193 transitions, 763 flow [2024-10-13 12:26:48,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 193 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:26:48,223 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 321 flow [2024-10-13 12:26:48,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=321, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2024-10-13 12:26:48,224 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -10 predicate places. [2024-10-13 12:26:48,224 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 321 flow [2024-10-13 12:26:48,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:48,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:48,225 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:48,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-10-13 12:26:48,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:48,426 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:48,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:48,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1629828377, now seen corresponding path program 1 times [2024-10-13 12:26:48,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:48,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569747157] [2024-10-13 12:26:48,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:48,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:48,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:48,446 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:48,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-13 12:26:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:48,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 12:26:48,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:48,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 12:26:48,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:48,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:48,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:48,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569747157] [2024-10-13 12:26:48,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569747157] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:48,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:48,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:26:48,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377330071] [2024-10-13 12:26:48,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:48,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:26:48,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:48,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:26:48,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:26:48,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-10-13 12:26:48,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 321 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:48,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:48,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-10-13 12:26:48,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:50,102 INFO L124 PetriNetUnfolderBase]: 1721/4277 cut-off events. [2024-10-13 12:26:50,102 INFO L125 PetriNetUnfolderBase]: For 1999/1999 co-relation queries the response was YES. [2024-10-13 12:26:50,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8613 conditions, 4277 events. 1721/4277 cut-off events. For 1999/1999 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 36188 event pairs, 143 based on Foata normal form. 450/3819 useless extension candidates. Maximal degree in co-relation 7442. Up to 1957 conditions per place. [2024-10-13 12:26:50,125 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 125 selfloop transitions, 12 changer transitions 2/176 dead transitions. [2024-10-13 12:26:50,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 176 transitions, 772 flow [2024-10-13 12:26:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:26:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 12:26:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 473 transitions. [2024-10-13 12:26:50,128 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.536281179138322 [2024-10-13 12:26:50,128 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 321 flow. Second operand 7 states and 473 transitions. [2024-10-13 12:26:50,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 176 transitions, 772 flow [2024-10-13 12:26:50,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 176 transitions, 772 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 12:26:50,135 INFO L231 Difference]: Finished difference. Result has 115 places, 106 transitions, 379 flow [2024-10-13 12:26:50,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=379, PETRI_PLACES=115, PETRI_TRANSITIONS=106} [2024-10-13 12:26:50,136 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -1 predicate places. [2024-10-13 12:26:50,136 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 106 transitions, 379 flow [2024-10-13 12:26:50,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:50,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:50,137 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:50,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-13 12:26:50,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:50,338 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:50,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:50,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1017481812, now seen corresponding path program 1 times [2024-10-13 12:26:50,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:50,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312154167] [2024-10-13 12:26:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:50,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:50,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:50,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:50,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-13 12:26:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:50,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 12:26:50,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:50,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 12:26:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:50,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:50,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:50,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312154167] [2024-10-13 12:26:50,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312154167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:50,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:50,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:26:50,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213958617] [2024-10-13 12:26:50,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:50,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:26:50,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:50,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:26:50,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:26:50,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-10-13 12:26:50,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 106 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:50,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:50,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-10-13 12:26:50,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:51,208 INFO L124 PetriNetUnfolderBase]: 1721/3767 cut-off events. [2024-10-13 12:26:51,208 INFO L125 PetriNetUnfolderBase]: For 3611/3611 co-relation queries the response was YES. [2024-10-13 12:26:51,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8725 conditions, 3767 events. 1721/3767 cut-off events. For 3611/3611 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 27862 event pairs, 959 based on Foata normal form. 146/3323 useless extension candidates. Maximal degree in co-relation 7550. Up to 1747 conditions per place. [2024-10-13 12:26:51,235 INFO L140 encePairwiseOnDemand]: 119/126 looper letters, 91 selfloop transitions, 6 changer transitions 0/128 dead transitions. [2024-10-13 12:26:51,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 128 transitions, 629 flow [2024-10-13 12:26:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:26:51,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:26:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2024-10-13 12:26:51,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2024-10-13 12:26:51,237 INFO L175 Difference]: Start difference. First operand has 115 places, 106 transitions, 379 flow. Second operand 3 states and 225 transitions. [2024-10-13 12:26:51,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 128 transitions, 629 flow [2024-10-13 12:26:51,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 128 transitions, 615 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 12:26:51,246 INFO L231 Difference]: Finished difference. Result has 114 places, 107 transitions, 397 flow [2024-10-13 12:26:51,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=114, PETRI_TRANSITIONS=107} [2024-10-13 12:26:51,247 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -2 predicate places. [2024-10-13 12:26:51,247 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 107 transitions, 397 flow [2024-10-13 12:26:51,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:51,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:51,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:51,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-13 12:26:51,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:51,448 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:51,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:51,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1017481813, now seen corresponding path program 1 times [2024-10-13 12:26:51,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:51,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707745621] [2024-10-13 12:26:51,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:51,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:51,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:51,455 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:51,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-13 12:26:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:51,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 12:26:51,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:51,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 12:26:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:51,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:51,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:51,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707745621] [2024-10-13 12:26:51,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707745621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:51,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:51,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:26:51,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935744705] [2024-10-13 12:26:51,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:51,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:26:51,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:51,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:26:51,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:26:51,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 126 [2024-10-13 12:26:51,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 107 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:51,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:51,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 126 [2024-10-13 12:26:51,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:52,286 INFO L124 PetriNetUnfolderBase]: 1973/3866 cut-off events. [2024-10-13 12:26:52,286 INFO L125 PetriNetUnfolderBase]: For 3841/3841 co-relation queries the response was YES. [2024-10-13 12:26:52,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9595 conditions, 3866 events. 1973/3866 cut-off events. For 3841/3841 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 25879 event pairs, 1313 based on Foata normal form. 0/3337 useless extension candidates. Maximal degree in co-relation 8419. Up to 2473 conditions per place. [2024-10-13 12:26:52,305 INFO L140 encePairwiseOnDemand]: 117/126 looper letters, 80 selfloop transitions, 7 changer transitions 0/116 dead transitions. [2024-10-13 12:26:52,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 116 transitions, 595 flow [2024-10-13 12:26:52,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:26:52,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:26:52,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-10-13 12:26:52,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-13 12:26:52,309 INFO L175 Difference]: Start difference. First operand has 114 places, 107 transitions, 397 flow. Second operand 3 states and 210 transitions. [2024-10-13 12:26:52,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 116 transitions, 595 flow [2024-10-13 12:26:52,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 116 transitions, 589 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:26:52,319 INFO L231 Difference]: Finished difference. Result has 110 places, 102 transitions, 395 flow [2024-10-13 12:26:52,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=395, PETRI_PLACES=110, PETRI_TRANSITIONS=102} [2024-10-13 12:26:52,320 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -6 predicate places. [2024-10-13 12:26:52,321 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 102 transitions, 395 flow [2024-10-13 12:26:52,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:52,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:52,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:52,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-10-13 12:26:52,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:52,522 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)] === [2024-10-13 12:26:52,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:52,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1398577977, now seen corresponding path program 1 times [2024-10-13 12:26:52,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:52,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175356510] [2024-10-13 12:26:52,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:52,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:52,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:52,528 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:52,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-13 12:26:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:52,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 12:26:52,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:52,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 12:26:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:52,761 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:52,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:52,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175356510] [2024-10-13 12:26:52,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175356510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:52,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:52,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:26:52,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813784113] [2024-10-13 12:26:52,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:52,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:26:52,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:52,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:26:52,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:26:53,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-10-13 12:26:53,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 102 transitions, 395 flow. Second operand has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:53,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:53,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-10-13 12:26:53,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:53,787 INFO L124 PetriNetUnfolderBase]: 1301/2852 cut-off events. [2024-10-13 12:26:53,788 INFO L125 PetriNetUnfolderBase]: For 2796/2796 co-relation queries the response was YES. [2024-10-13 12:26:53,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6788 conditions, 2852 events. 1301/2852 cut-off events. For 2796/2796 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 19493 event pairs, 93 based on Foata normal form. 0/2623 useless extension candidates. Maximal degree in co-relation 5906. Up to 1488 conditions per place. [2024-10-13 12:26:53,806 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 116 selfloop transitions, 16 changer transitions 1/165 dead transitions. [2024-10-13 12:26:53,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 165 transitions, 918 flow [2024-10-13 12:26:53,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:26:53,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 12:26:53,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 455 transitions. [2024-10-13 12:26:53,808 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2024-10-13 12:26:53,808 INFO L175 Difference]: Start difference. First operand has 110 places, 102 transitions, 395 flow. Second operand 7 states and 455 transitions. [2024-10-13 12:26:53,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 165 transitions, 918 flow [2024-10-13 12:26:53,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 165 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:26:53,820 INFO L231 Difference]: Finished difference. Result has 116 places, 109 transitions, 487 flow [2024-10-13 12:26:53,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=487, PETRI_PLACES=116, PETRI_TRANSITIONS=109} [2024-10-13 12:26:53,821 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 0 predicate places. [2024-10-13 12:26:53,821 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 109 transitions, 487 flow [2024-10-13 12:26:53,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:53,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:53,821 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:53,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-10-13 12:26:54,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:54,022 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)] === [2024-10-13 12:26:54,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:54,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1398577978, now seen corresponding path program 1 times [2024-10-13 12:26:54,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:54,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371557788] [2024-10-13 12:26:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:54,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:54,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:54,025 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:54,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-13 12:26:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:54,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:26:54,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:54,156 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 [2024-10-13 12:26:54,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:54,202 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:54,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:54,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371557788] [2024-10-13 12:26:54,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371557788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:54,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:54,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:26:54,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055663159] [2024-10-13 12:26:54,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:54,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:26:54,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:54,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:26:54,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:26:54,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-10-13 12:26:54,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 109 transitions, 487 flow. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:54,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:54,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-10-13 12:26:54,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:55,149 INFO L124 PetriNetUnfolderBase]: 1070/2326 cut-off events. [2024-10-13 12:26:55,149 INFO L125 PetriNetUnfolderBase]: For 2837/2837 co-relation queries the response was YES. [2024-10-13 12:26:55,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5955 conditions, 2326 events. 1070/2326 cut-off events. For 2837/2837 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 15292 event pairs, 153 based on Foata normal form. 65/2328 useless extension candidates. Maximal degree in co-relation 5145. Up to 794 conditions per place. [2024-10-13 12:26:55,163 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 119 selfloop transitions, 21 changer transitions 0/170 dead transitions. [2024-10-13 12:26:55,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 170 transitions, 1003 flow [2024-10-13 12:26:55,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:26:55,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 12:26:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 497 transitions. [2024-10-13 12:26:55,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4930555555555556 [2024-10-13 12:26:55,166 INFO L175 Difference]: Start difference. First operand has 116 places, 109 transitions, 487 flow. Second operand 8 states and 497 transitions. [2024-10-13 12:26:55,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 170 transitions, 1003 flow [2024-10-13 12:26:55,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 170 transitions, 1000 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:26:55,176 INFO L231 Difference]: Finished difference. Result has 127 places, 115 transitions, 612 flow [2024-10-13 12:26:55,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=612, PETRI_PLACES=127, PETRI_TRANSITIONS=115} [2024-10-13 12:26:55,177 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 11 predicate places. [2024-10-13 12:26:55,177 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 115 transitions, 612 flow [2024-10-13 12:26:55,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:55,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:55,177 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:55,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-13 12:26:55,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:55,378 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:55,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:55,379 INFO L85 PathProgramCache]: Analyzing trace with hash -262746270, now seen corresponding path program 1 times [2024-10-13 12:26:55,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:55,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123718846] [2024-10-13 12:26:55,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:55,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:55,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:55,381 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:55,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-13 12:26:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:55,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 12:26:55,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:55,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 12:26:55,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 12:26:55,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:26:55,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-13 12:26:55,812 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 12:26:55,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-13 12:26:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:55,829 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:55,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:55,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123718846] [2024-10-13 12:26:55,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123718846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:55,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:55,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:26:55,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464642768] [2024-10-13 12:26:55,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:55,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:26:55,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:55,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:26:55,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:26:56,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 126 [2024-10-13 12:26:56,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 115 transitions, 612 flow. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:56,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:56,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 126 [2024-10-13 12:26:56,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:57,271 INFO L124 PetriNetUnfolderBase]: 1229/2618 cut-off events. [2024-10-13 12:26:57,271 INFO L125 PetriNetUnfolderBase]: For 5402/5402 co-relation queries the response was YES. [2024-10-13 12:26:57,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7751 conditions, 2618 events. 1229/2618 cut-off events. For 5402/5402 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 17803 event pairs, 320 based on Foata normal form. 27/2634 useless extension candidates. Maximal degree in co-relation 6772. Up to 745 conditions per place. [2024-10-13 12:26:57,290 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 136 selfloop transitions, 21 changer transitions 0/189 dead transitions. [2024-10-13 12:26:57,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 189 transitions, 1225 flow [2024-10-13 12:26:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:26:57,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 12:26:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 536 transitions. [2024-10-13 12:26:57,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47266313932980597 [2024-10-13 12:26:57,292 INFO L175 Difference]: Start difference. First operand has 127 places, 115 transitions, 612 flow. Second operand 9 states and 536 transitions. [2024-10-13 12:26:57,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 189 transitions, 1225 flow [2024-10-13 12:26:57,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 189 transitions, 1197 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 12:26:57,304 INFO L231 Difference]: Finished difference. Result has 128 places, 113 transitions, 626 flow [2024-10-13 12:26:57,304 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=626, PETRI_PLACES=128, PETRI_TRANSITIONS=113} [2024-10-13 12:26:57,304 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 12 predicate places. [2024-10-13 12:26:57,305 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 113 transitions, 626 flow [2024-10-13 12:26:57,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:57,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:57,305 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:57,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-13 12:26:57,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:57,506 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:57,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:57,506 INFO L85 PathProgramCache]: Analyzing trace with hash 390898072, now seen corresponding path program 1 times [2024-10-13 12:26:57,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:57,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612271024] [2024-10-13 12:26:57,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:57,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:57,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:57,509 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:57,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-13 12:26:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:57,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 12:26:57,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:57,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 12:26:57,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 12:26:57,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:26:57,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-13 12:26:57,885 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 12:26:57,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-13 12:26:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:26:57,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:26:57,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:26:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612271024] [2024-10-13 12:26:57,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612271024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:26:57,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:26:57,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:26:57,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168080386] [2024-10-13 12:26:57,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:26:57,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:26:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:26:57,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:26:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:26:58,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 126 [2024-10-13 12:26:58,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 113 transitions, 626 flow. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:58,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:26:58,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 126 [2024-10-13 12:26:58,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:26:59,492 INFO L124 PetriNetUnfolderBase]: 1476/3063 cut-off events. [2024-10-13 12:26:59,492 INFO L125 PetriNetUnfolderBase]: For 6622/6622 co-relation queries the response was YES. [2024-10-13 12:26:59,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9501 conditions, 3063 events. 1476/3063 cut-off events. For 6622/6622 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 21683 event pairs, 498 based on Foata normal form. 24/3079 useless extension candidates. Maximal degree in co-relation 6839. Up to 701 conditions per place. [2024-10-13 12:26:59,509 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 133 selfloop transitions, 21 changer transitions 0/186 dead transitions. [2024-10-13 12:26:59,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 186 transitions, 1254 flow [2024-10-13 12:26:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:26:59,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 12:26:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 530 transitions. [2024-10-13 12:26:59,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4673721340388007 [2024-10-13 12:26:59,512 INFO L175 Difference]: Start difference. First operand has 128 places, 113 transitions, 626 flow. Second operand 9 states and 530 transitions. [2024-10-13 12:26:59,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 186 transitions, 1254 flow [2024-10-13 12:26:59,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 186 transitions, 1202 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-13 12:26:59,525 INFO L231 Difference]: Finished difference. Result has 126 places, 111 transitions, 620 flow [2024-10-13 12:26:59,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=126, PETRI_TRANSITIONS=111} [2024-10-13 12:26:59,526 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 10 predicate places. [2024-10-13 12:26:59,526 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 111 transitions, 620 flow [2024-10-13 12:26:59,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:26:59,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:26:59,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:26:59,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-10-13 12:26:59,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:59,728 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:26:59,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:26:59,729 INFO L85 PathProgramCache]: Analyzing trace with hash 681152799, now seen corresponding path program 1 times [2024-10-13 12:26:59,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:26:59,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488577924] [2024-10-13 12:26:59,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:26:59,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:26:59,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:26:59,731 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:26:59,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-13 12:26:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:26:59,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 12:26:59,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:26:59,955 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:26:59,955 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:26:59,956 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:26:59,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-10-13 12:27:00,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:27:00,029 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 [2024-10-13 12:27:00,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:27:00,087 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 [2024-10-13 12:27:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:27:00,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:27:00,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:27:00,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488577924] [2024-10-13 12:27:00,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488577924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:27:00,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:27:00,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:27:00,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807254968] [2024-10-13 12:27:00,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:27:00,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:27:00,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:27:00,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:27:00,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:27:00,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-10-13 12:27:00,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 111 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:00,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:27:00,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-10-13 12:27:00,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:27:03,408 INFO L124 PetriNetUnfolderBase]: 1952/3758 cut-off events. [2024-10-13 12:27:03,408 INFO L125 PetriNetUnfolderBase]: For 8743/8743 co-relation queries the response was YES. [2024-10-13 12:27:03,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12054 conditions, 3758 events. 1952/3758 cut-off events. For 8743/8743 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 26306 event pairs, 1070 based on Foata normal form. 70/3814 useless extension candidates. Maximal degree in co-relation 8993. Up to 2868 conditions per place. [2024-10-13 12:27:03,437 INFO L140 encePairwiseOnDemand]: 116/126 looper letters, 109 selfloop transitions, 23 changer transitions 0/160 dead transitions. [2024-10-13 12:27:03,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 160 transitions, 1143 flow [2024-10-13 12:27:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:27:03,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:27:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 389 transitions. [2024-10-13 12:27:03,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5145502645502645 [2024-10-13 12:27:03,439 INFO L175 Difference]: Start difference. First operand has 126 places, 111 transitions, 620 flow. Second operand 6 states and 389 transitions. [2024-10-13 12:27:03,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 160 transitions, 1143 flow [2024-10-13 12:27:03,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 160 transitions, 1098 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-13 12:27:03,460 INFO L231 Difference]: Finished difference. Result has 129 places, 134 transitions, 826 flow [2024-10-13 12:27:03,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=826, PETRI_PLACES=129, PETRI_TRANSITIONS=134} [2024-10-13 12:27:03,461 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 13 predicate places. [2024-10-13 12:27:03,461 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 134 transitions, 826 flow [2024-10-13 12:27:03,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:03,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:27:03,461 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:27:03,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-10-13 12:27:03,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:03,663 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:27:03,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:27:03,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1603139404, now seen corresponding path program 1 times [2024-10-13 12:27:03,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:27:03,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996414184] [2024-10-13 12:27:03,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:27:03,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:03,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:27:03,665 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:27:03,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-13 12:27:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:27:03,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 12:27:03,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:27:03,919 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:27:03,920 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:27:03,921 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:27:03,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-10-13 12:27:04,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:27:04,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2024-10-13 12:27:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:27:04,028 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:27:04,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:27:04,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996414184] [2024-10-13 12:27:04,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996414184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:27:04,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:27:04,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:27:04,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135946111] [2024-10-13 12:27:04,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:27:04,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:27:04,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:27:04,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:27:04,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:27:04,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 126 [2024-10-13 12:27:04,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 134 transitions, 826 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:04,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:27:04,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 126 [2024-10-13 12:27:04,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:27:05,883 INFO L124 PetriNetUnfolderBase]: 2168/4270 cut-off events. [2024-10-13 12:27:05,884 INFO L125 PetriNetUnfolderBase]: For 11957/11963 co-relation queries the response was YES. [2024-10-13 12:27:05,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15003 conditions, 4270 events. 2168/4270 cut-off events. For 11957/11963 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 31120 event pairs, 1110 based on Foata normal form. 108/4364 useless extension candidates. Maximal degree in co-relation 13773. Up to 3008 conditions per place. [2024-10-13 12:27:05,919 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 114 selfloop transitions, 35 changer transitions 0/178 dead transitions. [2024-10-13 12:27:05,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 178 transitions, 1438 flow [2024-10-13 12:27:05,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:27:05,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:27:05,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 334 transitions. [2024-10-13 12:27:05,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5301587301587302 [2024-10-13 12:27:05,921 INFO L175 Difference]: Start difference. First operand has 129 places, 134 transitions, 826 flow. Second operand 5 states and 334 transitions. [2024-10-13 12:27:05,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 178 transitions, 1438 flow [2024-10-13 12:27:05,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 178 transitions, 1418 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-10-13 12:27:05,955 INFO L231 Difference]: Finished difference. Result has 136 places, 153 transitions, 1136 flow [2024-10-13 12:27:05,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1136, PETRI_PLACES=136, PETRI_TRANSITIONS=153} [2024-10-13 12:27:05,956 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 20 predicate places. [2024-10-13 12:27:05,956 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 153 transitions, 1136 flow [2024-10-13 12:27:05,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:05,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:27:05,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:27:05,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-10-13 12:27:06,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:06,161 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:27:06,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:27:06,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1620575929, now seen corresponding path program 1 times [2024-10-13 12:27:06,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:27:06,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648333835] [2024-10-13 12:27:06,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:27:06,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:06,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:27:06,165 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:27:06,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-13 12:27:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:27:06,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 12:27:06,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:27:06,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 12:27:06,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:27:06,358 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:27:06,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:27:06,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648333835] [2024-10-13 12:27:06,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648333835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:27:06,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:27:06,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:27:06,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318857139] [2024-10-13 12:27:06,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:27:06,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:27:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:27:06,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:27:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:27:06,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 126 [2024-10-13 12:27:06,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 153 transitions, 1136 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:06,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:27:06,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 126 [2024-10-13 12:27:06,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:27:07,283 INFO L124 PetriNetUnfolderBase]: 2100/4163 cut-off events. [2024-10-13 12:27:07,284 INFO L125 PetriNetUnfolderBase]: For 15742/15758 co-relation queries the response was YES. [2024-10-13 12:27:07,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16352 conditions, 4163 events. 2100/4163 cut-off events. For 15742/15758 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 30533 event pairs, 1242 based on Foata normal form. 1/4123 useless extension candidates. Maximal degree in co-relation 15010. Up to 3461 conditions per place. [2024-10-13 12:27:07,319 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 123 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2024-10-13 12:27:07,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 159 transitions, 1444 flow [2024-10-13 12:27:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:27:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:27:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-10-13 12:27:07,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-13 12:27:07,321 INFO L175 Difference]: Start difference. First operand has 136 places, 153 transitions, 1136 flow. Second operand 3 states and 210 transitions. [2024-10-13 12:27:07,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 159 transitions, 1444 flow [2024-10-13 12:27:07,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 159 transitions, 1430 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-10-13 12:27:07,361 INFO L231 Difference]: Finished difference. Result has 136 places, 151 transitions, 1128 flow [2024-10-13 12:27:07,361 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=136, PETRI_TRANSITIONS=151} [2024-10-13 12:27:07,362 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 20 predicate places. [2024-10-13 12:27:07,362 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 151 transitions, 1128 flow [2024-10-13 12:27:07,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:07,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:27:07,362 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:27:07,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-10-13 12:27:07,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:07,563 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:27:07,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:27:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1620575930, now seen corresponding path program 1 times [2024-10-13 12:27:07,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:27:07,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639412825] [2024-10-13 12:27:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:27:07,565 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 [2024-10-13 12:27:07,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:27:07,567 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:27:07,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-13 12:27:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:27:07,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:27:07,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:27:07,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 12:27:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:27:07,750 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:27:07,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:27:07,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639412825] [2024-10-13 12:27:07,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639412825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:27:07,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:27:07,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:27:07,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25857174] [2024-10-13 12:27:07,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:27:07,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:27:07,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:27:07,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:27:07,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:27:07,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 126 [2024-10-13 12:27:07,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 151 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:07,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:27:07,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 126 [2024-10-13 12:27:07,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:27:08,553 INFO L124 PetriNetUnfolderBase]: 2100/4156 cut-off events. [2024-10-13 12:27:08,554 INFO L125 PetriNetUnfolderBase]: For 15517/15533 co-relation queries the response was YES. [2024-10-13 12:27:08,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16311 conditions, 4156 events. 2100/4156 cut-off events. For 15517/15533 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 30426 event pairs, 1242 based on Foata normal form. 1/4116 useless extension candidates. Maximal degree in co-relation 15684. Up to 3461 conditions per place. [2024-10-13 12:27:08,596 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 123 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-10-13 12:27:08,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 157 transitions, 1436 flow [2024-10-13 12:27:08,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:27:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:27:08,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-10-13 12:27:08,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-13 12:27:08,598 INFO L175 Difference]: Start difference. First operand has 136 places, 151 transitions, 1128 flow. Second operand 3 states and 210 transitions. [2024-10-13 12:27:08,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 157 transitions, 1436 flow [2024-10-13 12:27:08,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 157 transitions, 1426 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:27:08,641 INFO L231 Difference]: Finished difference. Result has 134 places, 149 transitions, 1124 flow [2024-10-13 12:27:08,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1124, PETRI_PLACES=134, PETRI_TRANSITIONS=149} [2024-10-13 12:27:08,641 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 18 predicate places. [2024-10-13 12:27:08,642 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 149 transitions, 1124 flow [2024-10-13 12:27:08,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:08,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:27:08,642 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:27:08,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-10-13 12:27:08,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:08,843 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:27:08,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:27:08,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1842184571, now seen corresponding path program 1 times [2024-10-13 12:27:08,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:27:08,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793505027] [2024-10-13 12:27:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:27:08,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:08,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:27:08,846 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:27:08,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-13 12:27:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:27:09,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 12:27:09,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:27:09,272 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_79| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79| (_ bv0 1)) |c_#valid|))) is different from true [2024-10-13 12:27:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:27:09,290 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:27:09,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:27:09,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793505027] [2024-10-13 12:27:09,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793505027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:27:09,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:27:09,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:27:09,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752383671] [2024-10-13 12:27:09,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:27:09,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:27:09,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:27:09,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:27:09,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-10-13 12:27:09,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 126 [2024-10-13 12:27:09,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 149 transitions, 1124 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:09,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:27:09,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 126 [2024-10-13 12:27:09,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:27:10,455 INFO L124 PetriNetUnfolderBase]: 2220/4294 cut-off events. [2024-10-13 12:27:10,456 INFO L125 PetriNetUnfolderBase]: For 15796/15796 co-relation queries the response was YES. [2024-10-13 12:27:10,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16933 conditions, 4294 events. 2220/4294 cut-off events. For 15796/15796 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 30427 event pairs, 847 based on Foata normal form. 0/4290 useless extension candidates. Maximal degree in co-relation 16296. Up to 1947 conditions per place. [2024-10-13 12:27:10,499 INFO L140 encePairwiseOnDemand]: 104/126 looper letters, 131 selfloop transitions, 36 changer transitions 4/187 dead transitions. [2024-10-13 12:27:10,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 187 transitions, 1711 flow [2024-10-13 12:27:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:27:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:27:10,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 252 transitions. [2024-10-13 12:27:10,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-10-13 12:27:10,501 INFO L175 Difference]: Start difference. First operand has 134 places, 149 transitions, 1124 flow. Second operand 5 states and 252 transitions. [2024-10-13 12:27:10,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 187 transitions, 1711 flow [2024-10-13 12:27:10,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 187 transitions, 1701 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:27:10,539 INFO L231 Difference]: Finished difference. Result has 139 places, 163 transitions, 1376 flow [2024-10-13 12:27:10,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1376, PETRI_PLACES=139, PETRI_TRANSITIONS=163} [2024-10-13 12:27:10,540 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 23 predicate places. [2024-10-13 12:27:10,540 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 163 transitions, 1376 flow [2024-10-13 12:27:10,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:10,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:27:10,541 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:27:10,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-10-13 12:27:10,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:10,741 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:27:10,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:27:10,742 INFO L85 PathProgramCache]: Analyzing trace with hash 79962136, now seen corresponding path program 1 times [2024-10-13 12:27:10,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:27:10,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194840484] [2024-10-13 12:27:10,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:27:10,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:10,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:27:10,745 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:27:10,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-10-13 12:27:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:27:10,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:27:10,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:27:10,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:27:10,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:27:10,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:27:10,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194840484] [2024-10-13 12:27:10,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194840484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:27:10,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:27:10,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:27:10,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848455907] [2024-10-13 12:27:10,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:27:10,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:27:10,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:27:10,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:27:10,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:27:10,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 126 [2024-10-13 12:27:10,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 163 transitions, 1376 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:10,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:27:10,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 126 [2024-10-13 12:27:10,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:27:11,378 INFO L124 PetriNetUnfolderBase]: 225/436 cut-off events. [2024-10-13 12:27:11,378 INFO L125 PetriNetUnfolderBase]: For 1737/1737 co-relation queries the response was YES. [2024-10-13 12:27:11,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1912 conditions, 436 events. 225/436 cut-off events. For 1737/1737 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1474 event pairs, 31 based on Foata normal form. 36/471 useless extension candidates. Maximal degree in co-relation 1883. Up to 226 conditions per place. [2024-10-13 12:27:11,382 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 64 selfloop transitions, 9 changer transitions 0/96 dead transitions. [2024-10-13 12:27:11,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 96 transitions, 720 flow [2024-10-13 12:27:11,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:27:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:27:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2024-10-13 12:27:11,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5218253968253969 [2024-10-13 12:27:11,383 INFO L175 Difference]: Start difference. First operand has 139 places, 163 transitions, 1376 flow. Second operand 4 states and 263 transitions. [2024-10-13 12:27:11,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 96 transitions, 720 flow [2024-10-13 12:27:11,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 96 transitions, 497 flow, removed 50 selfloop flow, removed 33 redundant places. [2024-10-13 12:27:11,390 INFO L231 Difference]: Finished difference. Result has 89 places, 76 transitions, 287 flow [2024-10-13 12:27:11,390 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=287, PETRI_PLACES=89, PETRI_TRANSITIONS=76} [2024-10-13 12:27:11,390 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -27 predicate places. [2024-10-13 12:27:11,391 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 76 transitions, 287 flow [2024-10-13 12:27:11,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:11,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:27:11,391 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:27:11,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2024-10-13 12:27:11,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:11,592 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:27:11,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:27:11,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1331630625, now seen corresponding path program 1 times [2024-10-13 12:27:11,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:27:11,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291848138] [2024-10-13 12:27:11,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:27:11,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:11,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:27:11,595 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:27:11,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-10-13 12:27:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:27:11,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 12:27:11,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:27:11,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 12:27:12,058 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-10-13 12:27:12,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-10-13 12:27:12,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2024-10-13 12:27:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:27:12,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:27:12,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:27:12,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291848138] [2024-10-13 12:27:12,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291848138] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:27:12,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:27:12,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:27:12,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579483425] [2024-10-13 12:27:12,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:27:12,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:27:12,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:27:12,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:27:12,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:27:12,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 126 [2024-10-13 12:27:12,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 76 transitions, 287 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:12,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:27:12,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 126 [2024-10-13 12:27:12,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:27:12,525 INFO L124 PetriNetUnfolderBase]: 225/435 cut-off events. [2024-10-13 12:27:12,526 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-10-13 12:27:12,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 435 events. 225/435 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1374 event pairs, 127 based on Foata normal form. 0/435 useless extension candidates. Maximal degree in co-relation 1322. Up to 294 conditions per place. [2024-10-13 12:27:12,528 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 56 selfloop transitions, 7 changer transitions 0/83 dead transitions. [2024-10-13 12:27:12,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 83 transitions, 443 flow [2024-10-13 12:27:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:27:12,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:27:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-10-13 12:27:12,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-10-13 12:27:12,530 INFO L175 Difference]: Start difference. First operand has 89 places, 76 transitions, 287 flow. Second operand 4 states and 219 transitions. [2024-10-13 12:27:12,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 83 transitions, 443 flow [2024-10-13 12:27:12,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 83 transitions, 425 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 12:27:12,533 INFO L231 Difference]: Finished difference. Result has 88 places, 75 transitions, 281 flow [2024-10-13 12:27:12,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=281, PETRI_PLACES=88, PETRI_TRANSITIONS=75} [2024-10-13 12:27:12,533 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -28 predicate places. [2024-10-13 12:27:12,533 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 75 transitions, 281 flow [2024-10-13 12:27:12,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:12,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:27:12,534 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:27:12,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-10-13 12:27:12,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:12,734 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)] === [2024-10-13 12:27:12,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:27:12,735 INFO L85 PathProgramCache]: Analyzing trace with hash -652910952, now seen corresponding path program 1 times [2024-10-13 12:27:12,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:27:12,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700601124] [2024-10-13 12:27:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:27:12,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:12,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:27:12,737 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:27:12,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-10-13 12:27:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:27:13,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 12:27:13,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:27:13,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 12:27:13,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 12:27:13,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:27:13,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-13 12:27:13,389 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 12:27:13,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-13 12:27:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:27:13,419 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:27:13,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:27:13,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700601124] [2024-10-13 12:27:13,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700601124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:27:13,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:27:13,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:27:13,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563299114] [2024-10-13 12:27:13,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:27:13,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:27:13,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:27:13,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:27:13,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:27:13,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 126 [2024-10-13 12:27:13,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 75 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:13,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:27:13,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 126 [2024-10-13 12:27:13,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:27:13,975 INFO L124 PetriNetUnfolderBase]: 225/429 cut-off events. [2024-10-13 12:27:13,976 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2024-10-13 12:27:13,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 429 events. 225/429 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1372 event pairs, 87 based on Foata normal form. 1/430 useless extension candidates. Maximal degree in co-relation 1282. Up to 215 conditions per place. [2024-10-13 12:27:13,978 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 51 selfloop transitions, 12 changer transitions 0/77 dead transitions. [2024-10-13 12:27:13,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 77 transitions, 427 flow [2024-10-13 12:27:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:27:13,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 12:27:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 294 transitions. [2024-10-13 12:27:13,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-10-13 12:27:13,980 INFO L175 Difference]: Start difference. First operand has 88 places, 75 transitions, 281 flow. Second operand 7 states and 294 transitions. [2024-10-13 12:27:13,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 77 transitions, 427 flow [2024-10-13 12:27:13,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 77 transitions, 413 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 12:27:13,984 INFO L231 Difference]: Finished difference. Result has 85 places, 69 transitions, 279 flow [2024-10-13 12:27:13,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=279, PETRI_PLACES=85, PETRI_TRANSITIONS=69} [2024-10-13 12:27:13,984 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -31 predicate places. [2024-10-13 12:27:13,984 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 69 transitions, 279 flow [2024-10-13 12:27:13,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:27:13,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:27:13,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:27:13,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-10-13 12:27:14,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:14,186 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-13 12:27:14,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:27:14,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1675284071, now seen corresponding path program 1 times [2024-10-13 12:27:14,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:27:14,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639616976] [2024-10-13 12:27:14,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:27:14,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:27:14,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:27:14,188 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:27:14,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-10-13 12:27:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:27:14,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-13 12:27:14,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:27:14,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:27:14,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:27:14,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:27:14,752 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:27:14,753 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:27:14,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-10-13 12:27:14,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:27:14,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2024-10-13 12:27:18,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:27:18,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-10-13 12:27:18,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:27:18,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:27:18,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:27:18,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639616976] [2024-10-13 12:27:18,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639616976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:27:18,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:27:18,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 12:27:18,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993426434] [2024-10-13 12:27:18,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:27:18,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 12:27:18,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:27:18,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 12:27:18,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=41, Unknown=1, NotChecked=0, Total=56 [2024-10-13 12:27:21,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:25,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:29,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:32,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:36,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:39,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:42,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:46,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:50,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:54,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 12:27:58,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]