./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/sleep-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/sleep-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:25:00,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:25:00,348 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-10-24 18:25:00,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:25:00,358 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:25:00,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:25:00,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:25:00,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:25:00,396 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:25:00,397 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:25:00,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:25:00,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:25:00,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:25:00,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:25:00,401 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:25:00,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:25:00,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:25:00,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:25:00,402 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:25:00,402 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:25:00,403 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:25:00,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:25:00,407 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:25:00,407 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:25:00,408 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:25:00,408 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:25:00,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:25:00,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:25:00,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:25:00,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:25:00,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:25:00,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:25:00,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:25:00,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:25:00,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:25:00,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:25:00,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:25:00,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:25:00,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:25:00,412 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 [2024-10-24 18:25:00,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:25:00,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:25:00,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:25:00,729 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:25:00,730 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:25:00,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2024-10-24 18:25:02,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:25:02,830 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:25:02,830 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2024-10-24 18:25:02,858 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ec83402/907879aa4bb944cf8f55fdda77e695a5/FLAGf617d876a [2024-10-24 18:25:02,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ec83402/907879aa4bb944cf8f55fdda77e695a5 [2024-10-24 18:25:02,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:25:02,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:25:02,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:25:02,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:25:02,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:25:02,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:25:02" (1/1) ... [2024-10-24 18:25:02,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c990a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:02, skipping insertion in model container [2024-10-24 18:25:02,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:25:02" (1/1) ... [2024-10-24 18:25:02,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:25:03,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:25:03,976 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-24 18:25:03,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c0cb3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:03, skipping insertion in model container [2024-10-24 18:25:03,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:25:03,977 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 18:25:03,979 INFO L158 Benchmark]: Toolchain (without parser) took 1098.16ms. Allocated memory is still 157.3MB. Free memory was 82.7MB in the beginning and 102.8MB in the end (delta: -20.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-10-24 18:25:03,979 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 157.3MB. Free memory was 112.2MB in the beginning and 112.1MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 18:25:03,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1094.62ms. Allocated memory is still 157.3MB. Free memory was 82.5MB in the beginning and 102.8MB in the end (delta: -20.2MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-10-24 18:25:03,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 157.3MB. Free memory was 112.2MB in the beginning and 112.1MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1094.62ms. Allocated memory is still 157.3MB. Free memory was 82.5MB in the beginning and 102.8MB in the end (delta: -20.2MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2646]: 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/busybox-1.22.0/sleep-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:25:06,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:25:06,365 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2024-10-24 18:25:06,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:25:06,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:25:06,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:25:06,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:25:06,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:25:06,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:25:06,424 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:25:06,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:25:06,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:25:06,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:25:06,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:25:06,426 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:25:06,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:25:06,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:25:06,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:25:06,428 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:25:06,428 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:25:06,431 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:25:06,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:25:06,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:25:06,432 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 18:25:06,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:25:06,433 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 18:25:06,433 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:25:06,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:25:06,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:25:06,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:25:06,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:25:06,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:25:06,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:25:06,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:25:06,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:25:06,435 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 18:25:06,435 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 18:25:06,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:25:06,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:25:06,439 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:25:06,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:25:06,439 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 18:25:06,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 [2024-10-24 18:25:06,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:25:06,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:25:06,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:25:06,841 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:25:06,842 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:25:06,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2024-10-24 18:25:09,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:25:09,527 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:25:09,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2024-10-24 18:25:09,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11da66b13/e442844ad4ab4ab58a3fe9ceaa965fc0/FLAG78ddf3ad4 [2024-10-24 18:25:09,569 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11da66b13/e442844ad4ab4ab58a3fe9ceaa965fc0 [2024-10-24 18:25:09,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:25:09,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:25:09,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:25:09,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:25:09,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:25:09,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:25:09" (1/1) ... [2024-10-24 18:25:09,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6975c3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:09, skipping insertion in model container [2024-10-24 18:25:09,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:25:09" (1/1) ... [2024-10-24 18:25:09,661 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:25:10,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:25:10,813 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 18:25:10,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:25:10,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:25:10,959 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:25:11,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:25:11,329 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:25:11,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11 WrapperNode [2024-10-24 18:25:11,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:25:11,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:25:11,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:25:11,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:25:11,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,449 INFO L138 Inliner]: procedures = 647, calls = 235, calls flagged for inlining = 17, calls inlined = 15, statements flattened = 749 [2024-10-24 18:25:11,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:25:11,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:25:11,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:25:11,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:25:11,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,500 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-10-24 18:25:11,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:25:11,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:25:11,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:25:11,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:25:11,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (1/1) ... [2024-10-24 18:25:11,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:25:11,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:25:11,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 18:25:11,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 18:25:11,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 18:25:11,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-24 18:25:11,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-10-24 18:25:11,675 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2024-10-24 18:25:11,675 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2024-10-24 18:25:11,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 18:25:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:25:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 18:25:11,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2024-10-24 18:25:11,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2024-10-24 18:25:11,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2024-10-24 18:25:11,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2024-10-24 18:25:11,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:25:11,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-10-24 18:25:11,678 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 18:25:11,678 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2024-10-24 18:25:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-10-24 18:25:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-24 18:25:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2024-10-24 18:25:11,679 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2024-10-24 18:25:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2024-10-24 18:25:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2024-10-24 18:25:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2024-10-24 18:25:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2024-10-24 18:25:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2024-10-24 18:25:11,679 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2024-10-24 18:25:12,230 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:25:12,236 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:25:21,475 INFO L? ?]: Removed 613 outVars from TransFormulas that were not future-live. [2024-10-24 18:25:21,475 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:25:21,592 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:25:21,593 INFO L314 CfgBuilder]: Removed 13 assume(true) statements. [2024-10-24 18:25:21,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:25:21 BoogieIcfgContainer [2024-10-24 18:25:21,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:25:21,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:25:21,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:25:21,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:25:21,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:25:09" (1/3) ... [2024-10-24 18:25:21,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466b11ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:25:21, skipping insertion in model container [2024-10-24 18:25:21,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:25:11" (2/3) ... [2024-10-24 18:25:21,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466b11ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:25:21, skipping insertion in model container [2024-10-24 18:25:21,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:25:21" (3/3) ... [2024-10-24 18:25:21,601 INFO L112 eAbstractionObserver]: Analyzing ICFG sleep-3.i [2024-10-24 18:25:21,616 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:25:21,617 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 234 error locations. [2024-10-24 18:25:21,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:25:21,674 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;@5a7c63cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:25:21,674 INFO L334 AbstractCegarLoop]: Starting to check reachability of 234 error locations. [2024-10-24 18:25:21,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 498 states, 242 states have (on average 2.243801652892562) internal successors, (543), 478 states have internal predecessors, (543), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 18:25:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:25:21,687 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:21,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:25:21,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 231 more)] === [2024-10-24 18:25:21,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:21,692 INFO L85 PathProgramCache]: Analyzing trace with hash 31762, now seen corresponding path program 1 times [2024-10-24 18:25:21,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:21,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959404394] [2024-10-24 18:25:21,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:21,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:21,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:21,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:25:21,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 18:25:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:21,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:25:21,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:21,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:25:22,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:25:22,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:25:22,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:22,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959404394] [2024-10-24 18:25:22,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959404394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:25:22,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:25:22,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:25:22,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481205700] [2024-10-24 18:25:22,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:25:22,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:25:22,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:22,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:25:22,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:25:22,069 INFO L87 Difference]: Start difference. First operand has 498 states, 242 states have (on average 2.243801652892562) internal successors, (543), 478 states have internal predecessors, (543), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:25,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:25:25,602 INFO L93 Difference]: Finished difference Result 521 states and 578 transitions. [2024-10-24 18:25:25,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:25:25,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2024-10-24 18:25:25,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:25:25,616 INFO L225 Difference]: With dead ends: 521 [2024-10-24 18:25:25,617 INFO L226 Difference]: Without dead ends: 516 [2024-10-24 18:25:25,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:25:25,622 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 89 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-24 18:25:25,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 687 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-24 18:25:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-10-24 18:25:25,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 470. [2024-10-24 18:25:25,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 227 states have (on average 2.185022026431718) internal successors, (496), 454 states have internal predecessors, (496), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:25:25,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 520 transitions. [2024-10-24 18:25:25,700 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 520 transitions. Word has length 2 [2024-10-24 18:25:25,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:25:25,700 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 520 transitions. [2024-10-24 18:25:25,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:25,701 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 520 transitions. [2024-10-24 18:25:25,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:25:25,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:25,701 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:25:25,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 18:25:25,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:25,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 231 more)] === [2024-10-24 18:25:25,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash 31763, now seen corresponding path program 1 times [2024-10-24 18:25:25,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:25,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890773040] [2024-10-24 18:25:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:25,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:25,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:25,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:25:25,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 18:25:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:26,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:25:26,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:26,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:25:26,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:25:26,164 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:25:26,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:26,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890773040] [2024-10-24 18:25:26,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890773040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:25:26,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:25:26,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:25:26,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192372552] [2024-10-24 18:25:26,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:25:26,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:25:26,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:25:26,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:25:26,168 INFO L87 Difference]: Start difference. First operand 470 states and 520 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:30,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:25:30,088 INFO L93 Difference]: Finished difference Result 469 states and 519 transitions. [2024-10-24 18:25:30,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:25:30,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2024-10-24 18:25:30,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:25:30,093 INFO L225 Difference]: With dead ends: 469 [2024-10-24 18:25:30,094 INFO L226 Difference]: Without dead ends: 469 [2024-10-24 18:25:30,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:25:30,101 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 8 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-24 18:25:30,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 742 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-24 18:25:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-10-24 18:25:30,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2024-10-24 18:25:30,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 227 states have (on average 2.1806167400881056) internal successors, (495), 453 states have internal predecessors, (495), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:25:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 519 transitions. [2024-10-24 18:25:30,137 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 519 transitions. Word has length 2 [2024-10-24 18:25:30,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:25:30,137 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 519 transitions. [2024-10-24 18:25:30,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:30,138 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 519 transitions. [2024-10-24 18:25:30,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 18:25:30,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:30,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 18:25:30,146 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 (3)] Ended with exit code 0 [2024-10-24 18:25:30,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:30,340 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 231 more)] === [2024-10-24 18:25:30,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:30,340 INFO L85 PathProgramCache]: Analyzing trace with hash 31081933, now seen corresponding path program 1 times [2024-10-24 18:25:30,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:30,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449704292] [2024-10-24 18:25:30,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:30,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:30,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:30,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:25:30,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 18:25:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:30,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:25:30,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:30,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:25:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:25:30,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:25:30,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449704292] [2024-10-24 18:25:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449704292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:25:30,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:25:30,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:25:30,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056100829] [2024-10-24 18:25:30,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:25:30,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:25:30,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:25:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:25:30,673 INFO L87 Difference]: Start difference. First operand 469 states and 519 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:34,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:25:34,699 INFO L93 Difference]: Finished difference Result 471 states and 521 transitions. [2024-10-24 18:25:34,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:25:34,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2024-10-24 18:25:34,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:25:34,703 INFO L225 Difference]: With dead ends: 471 [2024-10-24 18:25:34,703 INFO L226 Difference]: Without dead ends: 471 [2024-10-24 18:25:34,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:25:34,704 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 8 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:25:34,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 742 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-24 18:25:34,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-10-24 18:25:34,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2024-10-24 18:25:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 229 states have (on average 2.1703056768558953) internal successors, (497), 455 states have internal predecessors, (497), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:25:34,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 521 transitions. [2024-10-24 18:25:34,719 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 521 transitions. Word has length 4 [2024-10-24 18:25:34,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:25:34,719 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 521 transitions. [2024-10-24 18:25:34,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:34,719 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 521 transitions. [2024-10-24 18:25:34,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 18:25:34,720 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:34,720 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-10-24 18:25:34,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-24 18:25:34,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:34,921 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 231 more)] === [2024-10-24 18:25:34,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:34,922 INFO L85 PathProgramCache]: Analyzing trace with hash -194480574, now seen corresponding path program 1 times [2024-10-24 18:25:34,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:34,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679090548] [2024-10-24 18:25:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:34,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:34,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:34,927 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:25:34,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 18:25:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:35,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:25:35,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:35,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:25:35,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:25:35,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:25:36,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:25:36,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:36,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679090548] [2024-10-24 18:25:36,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679090548] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:25:36,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:25:36,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2024-10-24 18:25:36,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915668656] [2024-10-24 18:25:36,468 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:25:36,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 18:25:36,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:36,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 18:25:36,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 18:25:36,469 INFO L87 Difference]: Start difference. First operand 471 states and 521 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:55,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:25:55,114 INFO L93 Difference]: Finished difference Result 473 states and 523 transitions. [2024-10-24 18:25:55,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 18:25:55,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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) Word has length 6 [2024-10-24 18:25:55,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:25:55,119 INFO L225 Difference]: With dead ends: 473 [2024-10-24 18:25:55,119 INFO L226 Difference]: Without dead ends: 473 [2024-10-24 18:25:55,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-10-24 18:25:55,120 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 9 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:25:55,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1579 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2024-10-24 18:25:55,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-10-24 18:25:55,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-10-24 18:25:55,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 232 states have (on average 2.1508620689655173) internal successors, (499), 457 states have internal predecessors, (499), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:25:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 523 transitions. [2024-10-24 18:25:55,131 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 523 transitions. Word has length 6 [2024-10-24 18:25:55,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:25:55,131 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 523 transitions. [2024-10-24 18:25:55,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:55,132 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 523 transitions. [2024-10-24 18:25:55,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-24 18:25:55,132 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:55,132 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2024-10-24 18:25:55,146 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 (5)] Ended with exit code 0 [2024-10-24 18:25:55,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:55,334 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 231 more)] === [2024-10-24 18:25:55,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:55,336 INFO L85 PathProgramCache]: Analyzing trace with hash 802561255, now seen corresponding path program 1 times [2024-10-24 18:25:55,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:55,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882866494] [2024-10-24 18:25:55,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:55,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:55,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:55,340 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:25:55,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-24 18:25:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:55,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:25:55,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:55,745 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:25:55,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:25:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:25:55,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:55,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882866494] [2024-10-24 18:25:55,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882866494] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:25:55,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:25:55,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-24 18:25:55,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843624727] [2024-10-24 18:25:55,914 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:25:55,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 18:25:55,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:55,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 18:25:55,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-24 18:25:55,916 INFO L87 Difference]: Start difference. First operand 473 states and 523 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:59,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:25:59,731 INFO L93 Difference]: Finished difference Result 483 states and 533 transitions. [2024-10-24 18:25:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:25:59,733 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) Word has length 11 [2024-10-24 18:25:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:25:59,735 INFO L225 Difference]: With dead ends: 483 [2024-10-24 18:25:59,735 INFO L226 Difference]: Without dead ends: 483 [2024-10-24 18:25:59,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-10-24 18:25:59,736 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 6 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:25:59,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2317 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-24 18:25:59,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-10-24 18:25:59,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2024-10-24 18:25:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 242 states have (on average 2.103305785123967) internal successors, (509), 467 states have internal predecessors, (509), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:25:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 533 transitions. [2024-10-24 18:25:59,748 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 533 transitions. Word has length 11 [2024-10-24 18:25:59,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:25:59,748 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 533 transitions. [2024-10-24 18:25:59,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:25:59,749 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 533 transitions. [2024-10-24 18:25:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-24 18:25:59,749 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:59,749 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2024-10-24 18:25:59,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-24 18:25:59,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:59,950 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 231 more)] === [2024-10-24 18:25:59,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:59,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1391754498, now seen corresponding path program 2 times [2024-10-24 18:25:59,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:59,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811879387] [2024-10-24 18:25:59,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 18:25:59,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:59,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:59,955 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:25:59,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-24 18:26:00,228 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 18:26:00,229 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:26:00,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:26:00,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:26:00,332 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-24 18:26:00,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-10-24 18:26:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-24 18:26:01,074 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:26:01,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:26:01,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811879387] [2024-10-24 18:26:01,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811879387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:26:01,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:26:01,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:26:01,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343107992] [2024-10-24 18:26:01,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:26:01,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:26:01,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:26:01,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:26:01,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:26:01,077 INFO L87 Difference]: Start difference. First operand 483 states and 533 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:26:08,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:26:08,683 INFO L93 Difference]: Finished difference Result 789 states and 877 transitions. [2024-10-24 18:26:08,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:26:08,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 21 [2024-10-24 18:26:08,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:26:08,686 INFO L225 Difference]: With dead ends: 789 [2024-10-24 18:26:08,686 INFO L226 Difference]: Without dead ends: 789 [2024-10-24 18:26:08,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:26:08,688 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 367 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:26:08,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 610 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-10-24 18:26:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2024-10-24 18:26:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 570. [2024-10-24 18:26:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 324 states have (on average 2.138888888888889) internal successors, (693), 551 states have internal predecessors, (693), 18 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 18:26:08,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 725 transitions. [2024-10-24 18:26:08,704 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 725 transitions. Word has length 21 [2024-10-24 18:26:08,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:26:08,704 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 725 transitions. [2024-10-24 18:26:08,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:26:08,705 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 725 transitions. [2024-10-24 18:26:08,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-24 18:26:08,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:26:08,706 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2024-10-24 18:26:08,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-10-24 18:26:08,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:26:08,911 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 231 more)] === [2024-10-24 18:26:08,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:26:08,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1391754497, now seen corresponding path program 1 times [2024-10-24 18:26:08,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:26:08,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712593173] [2024-10-24 18:26:08,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:26:08,912 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:26:08,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:26:08,916 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:26:08,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-24 18:26:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:26:09,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 18:26:09,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:26:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:26:09,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:26:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:26:11,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:26:11,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712593173] [2024-10-24 18:26:11,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712593173] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:26:11,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:26:11,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2024-10-24 18:26:11,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041228785] [2024-10-24 18:26:11,033 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:26:11,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 18:26:11,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:26:11,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 18:26:11,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-10-24 18:26:11,035 INFO L87 Difference]: Start difference. First operand 570 states and 725 transitions. Second operand has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:26:19,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:26:19,291 INFO L93 Difference]: Finished difference Result 574 states and 729 transitions. [2024-10-24 18:26:19,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 18:26:19,295 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 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) Word has length 21 [2024-10-24 18:26:19,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:26:19,297 INFO L225 Difference]: With dead ends: 574 [2024-10-24 18:26:19,297 INFO L226 Difference]: Without dead ends: 574 [2024-10-24 18:26:19,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-10-24 18:26:19,302 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 3 mSDsluCounter, 4158 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4622 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-10-24 18:26:19,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4622 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-10-24 18:26:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-10-24 18:26:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2024-10-24 18:26:19,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 328 states have (on average 2.125) internal successors, (697), 555 states have internal predecessors, (697), 18 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 18:26:19,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 729 transitions. [2024-10-24 18:26:19,320 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 729 transitions. Word has length 21 [2024-10-24 18:26:19,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:26:19,320 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 729 transitions. [2024-10-24 18:26:19,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:26:19,321 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 729 transitions. [2024-10-24 18:26:19,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 18:26:19,321 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:26:19,321 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1] [2024-10-24 18:26:19,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-10-24 18:26:19,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:26:19,526 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 231 more)] === [2024-10-24 18:26:19,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:26:19,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2060815211, now seen corresponding path program 2 times [2024-10-24 18:26:19,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:26:19,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305672719] [2024-10-24 18:26:19,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 18:26:19,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:26:19,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:26:19,531 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:26:19,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-24 18:26:19,814 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 18:26:19,814 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:26:19,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 18:26:19,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:26:19,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 18:26:19,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 18:26:20,714 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-24 18:26:20,714 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:26:20,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:26:20,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305672719] [2024-10-24 18:26:20,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305672719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:26:20,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:26:20,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:26:20,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548706816] [2024-10-24 18:26:20,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:26:20,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:26:20,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:26:20,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:26:20,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:26:20,716 INFO L87 Difference]: Start difference. First operand 574 states and 729 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:26:25,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:26:25,239 INFO L93 Difference]: Finished difference Result 577 states and 731 transitions. [2024-10-24 18:26:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:26:25,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 25 [2024-10-24 18:26:25,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:26:25,244 INFO L225 Difference]: With dead ends: 577 [2024-10-24 18:26:25,244 INFO L226 Difference]: Without dead ends: 577 [2024-10-24 18:26:25,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:26:25,245 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 6 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:26:25,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 748 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-10-24 18:26:25,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-10-24 18:26:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2024-10-24 18:26:25,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 331 states have (on average 2.11178247734139) internal successors, (699), 557 states have internal predecessors, (699), 18 states have call successors, (18), 8 states have call predecessors, (18), 5 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 18:26:25,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 731 transitions. [2024-10-24 18:26:25,258 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 731 transitions. Word has length 25 [2024-10-24 18:26:25,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:26:25,259 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 731 transitions. [2024-10-24 18:26:25,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:26:25,259 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 731 transitions. [2024-10-24 18:26:25,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-24 18:26:25,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:26:25,260 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:26:25,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-24 18:26:25,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:26:25,465 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 231 more)] === [2024-10-24 18:26:25,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:26:25,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1637846045, now seen corresponding path program 1 times [2024-10-24 18:26:25,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:26:25,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257336879] [2024-10-24 18:26:25,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:26:25,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:26:25,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:26:25,471 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:26:25,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-24 18:26:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:26:26,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:26:26,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:26:26,435 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-24 18:26:26,436 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 1 case distinctions, treesize of input 9 treesize of output 15 [2024-10-24 18:26:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-24 18:26:26,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:26:26,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:26:26,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257336879] [2024-10-24 18:26:26,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257336879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:26:26,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:26:26,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:26:26,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978651894] [2024-10-24 18:26:26,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:26:26,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:26:26,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:26:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:26:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:26:26,496 INFO L87 Difference]: Start difference. First operand 577 states and 731 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)