./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/mkdir-2.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/mkdir-2.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 986e73d14c2f01d1a8f027488935adb09e47dd2b4ef75d20b4be96ea15b77609 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:24:32,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:24:32,883 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-10-24 18:24:32,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:24:32,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:24:32,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:24:32,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:24:32,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:24:32,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:24:32,907 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:24:32,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:24:32,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:24:32,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:24:32,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:24:32,909 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:24:32,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:24:32,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:24:32,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:24:32,910 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:24:32,910 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:24:32,911 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:24:32,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:24:32,916 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:24:32,916 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:24:32,917 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:24:32,917 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:24:32,917 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:24:32,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:24:32,918 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:24:32,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:24:32,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:24:32,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:24:32,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:24:32,919 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:24:32,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:24:32,919 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:24:32,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:24:32,920 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:24:32,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:24:32,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 986e73d14c2f01d1a8f027488935adb09e47dd2b4ef75d20b4be96ea15b77609 [2024-10-24 18:24:33,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:24:33,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:24:33,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:24:33,169 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:24:33,170 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:24:33,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/mkdir-2.i [2024-10-24 18:24:34,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:24:35,063 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:24:35,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/mkdir-2.i [2024-10-24 18:24:35,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928ef2579/0bc479c73a5c449fb1a2c101d7c8fcc0/FLAG4427bfc9f [2024-10-24 18:24:35,294 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928ef2579/0bc479c73a5c449fb1a2c101d7c8fcc0 [2024-10-24 18:24:35,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:24:35,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:24:35,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:24:35,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:24:35,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:24:35,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:24:35" (1/1) ... [2024-10-24 18:24:35,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a516d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:35, skipping insertion in model container [2024-10-24 18:24:35,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:24:35" (1/1) ... [2024-10-24 18:24:35,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:24:36,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:24:36,572 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 18:24:36,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25047cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:36, skipping insertion in model container [2024-10-24 18:24:36,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:24:36,573 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 18:24:36,574 INFO L158 Benchmark]: Toolchain (without parser) took 1275.08ms. Allocated memory is still 163.6MB. Free memory was 90.8MB in the beginning and 90.6MB in the end (delta: 194.8kB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-10-24 18:24:36,575 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 18:24:36,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1272.72ms. Allocated memory is still 163.6MB. Free memory was 90.5MB in the beginning and 90.6MB in the end (delta: -118.5kB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-10-24 18:24:36,576 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1272.72ms. Allocated memory is still 163.6MB. Free memory was 90.5MB in the beginning and 90.6MB in the end (delta: -118.5kB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2442]: 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/mkdir-2.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 986e73d14c2f01d1a8f027488935adb09e47dd2b4ef75d20b4be96ea15b77609 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:24:39,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:24:39,364 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2024-10-24 18:24:39,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:24:39,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:24:39,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:24:39,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:24:39,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:24:39,411 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:24:39,411 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:24:39,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:24:39,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:24:39,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:24:39,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:24:39,413 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:24:39,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:24:39,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:24:39,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:24:39,415 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:24:39,418 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:24:39,421 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:24:39,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:24:39,421 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:24:39,422 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 18:24:39,422 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:24:39,422 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 18:24:39,422 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:24:39,423 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:24:39,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:24:39,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:24:39,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:24:39,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:24:39,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:24:39,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:24:39,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:24:39,427 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 18:24:39,428 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 18:24:39,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:24:39,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:24:39,429 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:24:39,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:24:39,429 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 18:24:39,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 986e73d14c2f01d1a8f027488935adb09e47dd2b4ef75d20b4be96ea15b77609 [2024-10-24 18:24:39,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:24:39,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:24:39,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:24:39,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:24:39,846 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:24:39,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/mkdir-2.i [2024-10-24 18:24:41,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:24:42,014 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:24:42,016 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/mkdir-2.i [2024-10-24 18:24:42,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2672776/f2b14c93a4664591b99cd316cef7f1dd/FLAGeaa356410 [2024-10-24 18:24:42,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2672776/f2b14c93a4664591b99cd316cef7f1dd [2024-10-24 18:24:42,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:24:42,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:24:42,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:24:42,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:24:42,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:24:42,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:24:42" (1/1) ... [2024-10-24 18:24:42,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd97e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:42, skipping insertion in model container [2024-10-24 18:24:42,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:24:42" (1/1) ... [2024-10-24 18:24:42,158 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:24:43,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:24:43,590 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 18:24:43,620 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:24:43,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:24:43,770 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:24:43,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:24:44,263 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:24:44,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44 WrapperNode [2024-10-24 18:24:44,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:24:44,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:24:44,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:24:44,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:24:44,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,509 INFO L138 Inliner]: procedures = 653, calls = 506, calls flagged for inlining = 27, calls inlined = 26, statements flattened = 1889 [2024-10-24 18:24:44,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:24:44,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:24:44,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:24:44,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:24:44,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,561 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-10-24 18:24:44,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:24:44,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:24:44,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:24:44,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:24:44,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (1/1) ... [2024-10-24 18:24:44,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:24:44,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:24:44,738 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 18:24:44,743 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 18:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 18:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-24 18:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-10-24 18:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2024-10-24 18:24:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2024-10-24 18:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 18:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 18:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2024-10-24 18:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2024-10-24 18:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2024-10-24 18:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2024-10-24 18:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:24:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-10-24 18:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-10-24 18:24:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-10-24 18:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2024-10-24 18:24:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2024-10-24 18:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-24 18:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-10-24 18:24:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-10-24 18:24:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2024-10-24 18:24:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure umask [2024-10-24 18:24:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2024-10-24 18:24:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure stat [2024-10-24 18:24:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-10-24 18:24:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-10-24 18:24:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 18:24:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 18:24:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 18:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 18:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2024-10-24 18:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-10-24 18:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-24 18:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-24 18:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2024-10-24 18:24:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2024-10-24 18:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2024-10-24 18:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2024-10-24 18:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2024-10-24 18:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2024-10-24 18:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2024-10-24 18:24:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2024-10-24 18:24:45,289 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:24:45,290 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:24:45,870 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:25:00,585 INFO L? ?]: Removed 1413 outVars from TransFormulas that were not future-live. [2024-10-24 18:25:00,585 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:25:00,853 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:25:00,854 INFO L314 CfgBuilder]: Removed 37 assume(true) statements. [2024-10-24 18:25:00,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:25:00 BoogieIcfgContainer [2024-10-24 18:25:00,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:25:00,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:25:00,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:25:00,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:25:00,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:24:42" (1/3) ... [2024-10-24 18:25:00,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5ed8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:25:00, skipping insertion in model container [2024-10-24 18:25:00,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:24:44" (2/3) ... [2024-10-24 18:25:00,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5ed8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:25:00, skipping insertion in model container [2024-10-24 18:25:00,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:25:00" (3/3) ... [2024-10-24 18:25:00,864 INFO L112 eAbstractionObserver]: Analyzing ICFG mkdir-2.i [2024-10-24 18:25:00,882 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:25:00,883 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 568 error locations. [2024-10-24 18:25:00,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:25:00,975 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;@7b64a79b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:25:00,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 568 error locations. [2024-10-24 18:25:00,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 1240 states, 632 states have (on average 2.2642405063291138) internal successors, (1431), 1202 states have internal predecessors, (1431), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-10-24 18:25:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:25:00,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:00,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:25:00,997 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 565 more)] === [2024-10-24 18:25:01,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:01,005 INFO L85 PathProgramCache]: Analyzing trace with hash 84220, now seen corresponding path program 1 times [2024-10-24 18:25:01,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:01,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610245542] [2024-10-24 18:25:01,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:01,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:25:01,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:01,027 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 18:25:01,032 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 18:25:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:01,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:25:01,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:01,537 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 18:25:01,580 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 18:25:01,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:25:01,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:01,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610245542] [2024-10-24 18:25:01,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610245542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:25:01,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:25:01,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:25:01,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091513078] [2024-10-24 18:25:01,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:25:01,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:25:01,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:01,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:25:01,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:25:01,627 INFO L87 Difference]: Start difference. First operand has 1240 states, 632 states have (on average 2.2642405063291138) internal successors, (1431), 1202 states have internal predecessors, (1431), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) 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 18:25:08,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:25:08,595 INFO L93 Difference]: Finished difference Result 1358 states and 1582 transitions. [2024-10-24 18:25:08,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:25:08,601 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 18:25:08,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:25:08,616 INFO L225 Difference]: With dead ends: 1358 [2024-10-24 18:25:08,616 INFO L226 Difference]: Without dead ends: 1357 [2024-10-24 18:25:08,618 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 18:25:08,620 INFO L432 NwaCegarLoop]: 1130 mSDtfsCounter, 367 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-10-24 18:25:08,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1826 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-10-24 18:25:08,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2024-10-24 18:25:08,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1202. [2024-10-24 18:25:08,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 612 states have (on average 2.183006535947712) internal successors, (1336), 1168 states have internal predecessors, (1336), 32 states have call successors, (32), 9 states have call predecessors, (32), 8 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 18:25:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1395 transitions. [2024-10-24 18:25:08,703 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1395 transitions. Word has length 2 [2024-10-24 18:25:08,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:25:08,704 INFO L471 AbstractCegarLoop]: Abstraction has 1202 states and 1395 transitions. [2024-10-24 18:25:08,704 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 18:25:08,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1395 transitions. [2024-10-24 18:25:08,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:25:08,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:08,704 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:25:08,720 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 18:25:08,905 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 18:25:08,906 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 565 more)] === [2024-10-24 18:25:08,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:08,907 INFO L85 PathProgramCache]: Analyzing trace with hash 84221, now seen corresponding path program 1 times [2024-10-24 18:25:08,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:08,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250128357] [2024-10-24 18:25:08,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:08,908 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 18:25:08,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:08,911 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 18:25:08,912 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 18:25:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:09,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:25:09,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:09,222 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 18:25:09,260 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 18:25:09,260 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:25:09,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:09,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250128357] [2024-10-24 18:25:09,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250128357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:25:09,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:25:09,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:25:09,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891134283] [2024-10-24 18:25:09,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:25:09,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:25:09,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:09,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:25:09,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:25:09,263 INFO L87 Difference]: Start difference. First operand 1202 states and 1395 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 18:25:17,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:25:17,103 INFO L93 Difference]: Finished difference Result 1201 states and 1394 transitions. [2024-10-24 18:25:17,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:25:17,107 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 18:25:17,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:25:17,115 INFO L225 Difference]: With dead ends: 1201 [2024-10-24 18:25:17,115 INFO L226 Difference]: Without dead ends: 1201 [2024-10-24 18:25:17,119 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 18:25:17,120 INFO L432 NwaCegarLoop]: 1262 mSDtfsCounter, 8 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:25:17,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2074 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-10-24 18:25:17,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-10-24 18:25:17,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1201. [2024-10-24 18:25:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 612 states have (on average 2.1813725490196076) internal successors, (1335), 1167 states have internal predecessors, (1335), 32 states have call successors, (32), 9 states have call predecessors, (32), 8 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 18:25:17,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1394 transitions. [2024-10-24 18:25:17,184 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1394 transitions. Word has length 2 [2024-10-24 18:25:17,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:25:17,185 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1394 transitions. [2024-10-24 18:25:17,189 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 18:25:17,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1394 transitions. [2024-10-24 18:25:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 18:25:17,189 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:17,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 18:25:17,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-24 18:25:17,390 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 18:25:17,391 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 565 more)] === [2024-10-24 18:25:17,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:17,395 INFO L85 PathProgramCache]: Analyzing trace with hash 83060786, now seen corresponding path program 1 times [2024-10-24 18:25:17,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:17,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260601198] [2024-10-24 18:25:17,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:17,397 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 18:25:17,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:17,402 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 18:25:17,404 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 18:25:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:17,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:25:17,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:17,905 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 18:25:17,997 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 18:25:17,998 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:25:17,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:17,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260601198] [2024-10-24 18:25:17,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260601198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:25:17,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:25:17,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:25:17,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594828967] [2024-10-24 18:25:17,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:25:17,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:25:17,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:18,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:25:18,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:25:18,000 INFO L87 Difference]: Start difference. First operand 1201 states and 1394 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 18:25:25,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:25:25,125 INFO L93 Difference]: Finished difference Result 1203 states and 1396 transitions. [2024-10-24 18:25:25,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:25:25,127 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 18:25:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:25:25,131 INFO L225 Difference]: With dead ends: 1203 [2024-10-24 18:25:25,131 INFO L226 Difference]: Without dead ends: 1203 [2024-10-24 18:25:25,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:25:25,132 INFO L432 NwaCegarLoop]: 1261 mSDtfsCounter, 8 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:25:25,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2074 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-10-24 18:25:25,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-10-24 18:25:25,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1203. [2024-10-24 18:25:25,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 614 states have (on average 2.1775244299674266) internal successors, (1337), 1169 states have internal predecessors, (1337), 32 states have call successors, (32), 9 states have call predecessors, (32), 8 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 18:25:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1396 transitions. [2024-10-24 18:25:25,151 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1396 transitions. Word has length 4 [2024-10-24 18:25:25,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:25:25,151 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1396 transitions. [2024-10-24 18:25:25,152 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 18:25:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1396 transitions. [2024-10-24 18:25:25,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 18:25:25,152 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:25,152 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-10-24 18:25:25,166 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 18:25:25,356 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 18:25:25,357 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 565 more)] === [2024-10-24 18:25:25,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:25,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1780849444, now seen corresponding path program 1 times [2024-10-24 18:25:25,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:25,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286532013] [2024-10-24 18:25:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:25,361 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 18:25:25,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:25,364 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 18:25:25,365 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 18:25:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:25,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:25:25,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:25,686 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 18:25:25,922 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 18:25:25,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:25:26,418 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 18:25:26,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:26,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286532013] [2024-10-24 18:25:26,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286532013] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:25:26,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:25:26,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2024-10-24 18:25:26,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104931438] [2024-10-24 18:25:26,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:25:26,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 18:25:26,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:26,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 18:25:26,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 18:25:26,419 INFO L87 Difference]: Start difference. First operand 1203 states and 1396 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 18:25:56,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:25:56,432 INFO L93 Difference]: Finished difference Result 1205 states and 1398 transitions. [2024-10-24 18:25:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 18:25:56,435 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 18:25:56,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:25:56,439 INFO L225 Difference]: With dead ends: 1205 [2024-10-24 18:25:56,439 INFO L226 Difference]: Without dead ends: 1205 [2024-10-24 18:25:56,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-10-24 18:25:56,440 INFO L432 NwaCegarLoop]: 1260 mSDtfsCounter, 9 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 2438 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4510 SdHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:25:56,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4510 Invalid, 2442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 2438 Invalid, 0 Unknown, 0 Unchecked, 29.7s Time] [2024-10-24 18:25:56,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-10-24 18:25:56,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2024-10-24 18:25:56,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 617 states have (on average 2.1701782820097244) internal successors, (1339), 1171 states have internal predecessors, (1339), 32 states have call successors, (32), 9 states have call predecessors, (32), 8 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 18:25:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1398 transitions. [2024-10-24 18:25:56,461 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1398 transitions. Word has length 6 [2024-10-24 18:25:56,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:25:56,461 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1398 transitions. [2024-10-24 18:25:56,461 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 18:25:56,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1398 transitions. [2024-10-24 18:25:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-24 18:25:56,462 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:25:56,462 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2024-10-24 18:25:56,474 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 18:25:56,662 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 18:25:56,663 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 565 more)] === [2024-10-24 18:25:56,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:25:56,664 INFO L85 PathProgramCache]: Analyzing trace with hash -875210106, now seen corresponding path program 1 times [2024-10-24 18:25:56,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:25:56,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649751666] [2024-10-24 18:25:56,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:25:56,665 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 18:25:56,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:25:56,668 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 18:25:56,672 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 18:25:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:25:56,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:25:56,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:25:57,220 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 18:25:57,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:25:57,623 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 18:25:57,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:25:57,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649751666] [2024-10-24 18:25:57,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649751666] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:25:57,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:25:57,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-24 18:25:57,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034259614] [2024-10-24 18:25:57,624 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:25:57,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 18:25:57,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:25:57,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 18:25:57,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-24 18:25:57,625 INFO L87 Difference]: Start difference. First operand 1205 states and 1398 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 18:26:04,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:26:04,459 INFO L93 Difference]: Finished difference Result 1215 states and 1408 transitions. [2024-10-24 18:26:04,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:26:04,461 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 18:26:04,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:26:04,464 INFO L225 Difference]: With dead ends: 1215 [2024-10-24 18:26:04,464 INFO L226 Difference]: Without dead ends: 1215 [2024-10-24 18:26:04,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-10-24 18:26:04,465 INFO L432 NwaCegarLoop]: 1264 mSDtfsCounter, 6 mSDsluCounter, 6310 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7574 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:26:04,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7574 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-10-24 18:26:04,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2024-10-24 18:26:04,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1215. [2024-10-24 18:26:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 627 states have (on average 2.1515151515151514) internal successors, (1349), 1181 states have internal predecessors, (1349), 32 states have call successors, (32), 9 states have call predecessors, (32), 8 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 18:26:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1408 transitions. [2024-10-24 18:26:04,482 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1408 transitions. Word has length 11 [2024-10-24 18:26:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:26:04,482 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1408 transitions. [2024-10-24 18:26:04,482 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 18:26:04,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1408 transitions. [2024-10-24 18:26:04,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-24 18:26:04,483 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:26:04,483 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2024-10-24 18:26:04,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-24 18:26:04,683 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 18:26:04,684 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 565 more)] === [2024-10-24 18:26:04,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:26:04,685 INFO L85 PathProgramCache]: Analyzing trace with hash -802102284, now seen corresponding path program 2 times [2024-10-24 18:26:04,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:26:04,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964584581] [2024-10-24 18:26:04,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 18:26:04,686 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 18:26:04,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:26:04,689 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 18:26:04,690 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 18:26:05,092 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 18:26:05,093 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:26:05,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:26:05,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:26:05,158 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-24 18:26:05,159 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 18:26:05,685 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 18:26:05,686 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:26:05,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:26:05,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964584581] [2024-10-24 18:26:05,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964584581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:26:05,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:26:05,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:26:05,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406522995] [2024-10-24 18:26:05,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:26:05,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:26:05,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:26:05,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:26:05,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:26:05,687 INFO L87 Difference]: Start difference. First operand 1215 states and 1408 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)