./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya --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 0.2.4-dev-0e0057c [2023-11-29 01:40:03,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:40:03,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-29 01:40:03,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:40:03,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:40:03,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:40:03,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:40:03,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:40:03,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:40:03,492 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:40:03,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:40:03,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:40:03,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:40:03,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:40:03,495 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:40:03,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:40:03,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:40:03,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:40:03,498 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 01:40:03,498 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 01:40:03,499 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 01:40:03,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:40:03,500 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:40:03,500 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:40:03,501 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:40:03,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:40:03,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:40:03,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:40:03,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:40:03,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:40:03,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:40:03,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:40:03,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:40:03,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:40:03,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:40:03,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:40:03,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:40:03,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:40:03,506 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 [2023-11-29 01:40:03,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:40:03,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:40:03,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:40:03,793 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:40:03,794 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:40:03,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-29 01:40:06,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:40:06,871 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:40:06,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-29 01:40:06,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/data/437f9899b/7b9bf0de7ebb4d1fa8708b20d7484fcc/FLAG904705520 [2023-11-29 01:40:06,909 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/data/437f9899b/7b9bf0de7ebb4d1fa8708b20d7484fcc [2023-11-29 01:40:06,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:40:06,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:40:06,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:40:06,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:40:06,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:40:06,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:40:06" (1/1) ... [2023-11-29 01:40:06,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15bf50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:06, skipping insertion in model container [2023-11-29 01:40:06,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:40:06" (1/1) ... [2023-11-29 01:40:06,993 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:40:07,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:40:08,010 ERROR L324 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) [2023-11-29 01:40:08,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22adc136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:08, skipping insertion in model container [2023-11-29 01:40:08,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:40:08,011 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 01:40:08,012 INFO L158 Benchmark]: Toolchain (without parser) took 1099.26ms. Allocated memory is still 161.5MB. Free memory was 114.9MB in the beginning and 83.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-29 01:40:08,013 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:40:08,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1097.30ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 83.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-29 01:40:08,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1097.30ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 83.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2471]: 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: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya --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 0.2.4-dev-0e0057c [2023-11-29 01:40:09,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:40:09,937 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-29 01:40:09,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:40:09,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:40:09,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:40:09,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:40:09,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:40:09,987 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:40:09,987 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:40:09,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:40:09,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:40:09,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:40:09,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:40:09,991 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:40:09,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:40:09,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:40:09,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:40:09,993 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 01:40:09,994 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 01:40:09,994 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 01:40:09,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:40:09,997 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:40:09,997 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:40:09,998 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:40:09,998 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:40:09,998 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:40:09,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:40:10,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:40:10,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:40:10,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:40:10,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:40:10,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:40:10,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:40:10,002 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:40:10,002 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:40:10,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:40:10,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:40:10,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:40:10,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:40:10,003 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:40:10,004 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 [2023-11-29 01:40:10,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:40:10,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:40:10,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:40:10,314 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:40:10,314 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:40:10,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-29 01:40:13,046 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:40:13,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:40:13,374 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-29 01:40:13,403 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/data/f44a985a0/2b90df3fc502449e8a184c6538fc7b6a/FLAG668d7b242 [2023-11-29 01:40:13,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/data/f44a985a0/2b90df3fc502449e8a184c6538fc7b6a [2023-11-29 01:40:13,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:40:13,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:40:13,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:40:13,608 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:40:13,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:40:13,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:40:13" (1/1) ... [2023-11-29 01:40:13,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8a10ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:13, skipping insertion in model container [2023-11-29 01:40:13,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:40:13" (1/1) ... [2023-11-29 01:40:13,734 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:40:14,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:40:14,905 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 01:40:14,932 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:40:15,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:40:15,073 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:40:15,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:40:15,430 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:40:15,430 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:40:15,431 WARN L675 CHandler]: The function strspn is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:40:15,438 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:40:15,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15 WrapperNode [2023-11-29 01:40:15,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:40:15,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:40:15,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:40:15,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:40:15,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,571 INFO L138 Inliner]: procedures = 647, calls = 241, calls flagged for inlining = 17, calls inlined = 15, statements flattened = 757 [2023-11-29 01:40:15,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:40:15,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:40:15,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:40:15,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:40:15,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,623 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-29 01:40:15,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:40:15,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:40:15,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:40:15,710 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:40:15,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (1/1) ... [2023-11-29 01:40:15,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:40:15,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:15,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:40:15,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:40:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:40:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-29 01:40:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-29 01:40:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2023-11-29 01:40:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2023-11-29 01:40:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:40:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-29 01:40:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:40:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 01:40:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-29 01:40:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-29 01:40:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-29 01:40:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-29 01:40:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:40:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:40:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-29 01:40:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-29 01:40:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-29 01:40:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-29 01:40:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-29 01:40:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-29 01:40:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-29 01:40:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:40:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:40:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:40:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 01:40:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-29 01:40:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-29 01:40:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-29 01:40:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-29 01:40:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-29 01:40:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2023-11-29 01:40:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-29 01:40:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-29 01:40:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-29 01:40:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-29 01:40:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-29 01:40:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-29 01:40:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-29 01:40:16,186 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:40:16,188 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:40:25,311 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:40:25,420 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:40:25,420 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-29 01:40:25,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:40:25 BoogieIcfgContainer [2023-11-29 01:40:25,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:40:25,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:40:25,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:40:25,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:40:25,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:40:13" (1/3) ... [2023-11-29 01:40:25,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136b20d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:40:25, skipping insertion in model container [2023-11-29 01:40:25,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:40:15" (2/3) ... [2023-11-29 01:40:25,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136b20d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:40:25, skipping insertion in model container [2023-11-29 01:40:25,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:40:25" (3/3) ... [2023-11-29 01:40:25,431 INFO L112 eAbstractionObserver]: Analyzing ICFG sleep-3.i [2023-11-29 01:40:25,452 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:40:25,452 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 233 error locations. [2023-11-29 01:40:25,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:40:25,520 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@1e8e2357, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:40:25,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 233 error locations. [2023-11-29 01:40:25,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 497 states, 242 states have (on average 2.2355371900826446) internal successors, (541), 477 states have internal predecessors, (541), 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) [2023-11-29 01:40:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-29 01:40:25,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:25,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-29 01:40:25,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:40:25,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:25,542 INFO L85 PathProgramCache]: Analyzing trace with hash 31694, now seen corresponding path program 1 times [2023-11-29 01:40:25,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:40:25,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715527135] [2023-11-29 01:40:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:25,561 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 [2023-11-29 01:40:25,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:40:25,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:40:25,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:40:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:25,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:40:25,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:25,974 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 [2023-11-29 01:40:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:40:26,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:40:26,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:40:26,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715527135] [2023-11-29 01:40:26,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715527135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:40:26,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:40:26,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:40:26,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825371007] [2023-11-29 01:40:26,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:40:26,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:40:26,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:40:26,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:40:26,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:40:26,064 INFO L87 Difference]: Start difference. First operand has 497 states, 242 states have (on average 2.2355371900826446) internal successors, (541), 477 states have internal predecessors, (541), 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) [2023-11-29 01:40:30,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:30,176 INFO L93 Difference]: Finished difference Result 491 states and 549 transitions. [2023-11-29 01:40:30,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:40:30,180 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 [2023-11-29 01:40:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:30,191 INFO L225 Difference]: With dead ends: 491 [2023-11-29 01:40:30,191 INFO L226 Difference]: Without dead ends: 487 [2023-11-29 01:40:30,192 INFO L412 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 [2023-11-29 01:40:30,195 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 11 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:30,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 782 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-29 01:40:30,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-29 01:40:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2023-11-29 01:40:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 239 states have (on average 2.1673640167364017) internal successors, (518), 470 states have internal predecessors, (518), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:40:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 544 transitions. [2023-11-29 01:40:30,259 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 544 transitions. Word has length 2 [2023-11-29 01:40:30,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:30,259 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 544 transitions. [2023-11-29 01:40:30,260 INFO L496 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) [2023-11-29 01:40:30,260 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 544 transitions. [2023-11-29 01:40:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-29 01:40:30,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:30,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-29 01:40:30,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:40:30,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:40:30,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:40:30,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:30,465 INFO L85 PathProgramCache]: Analyzing trace with hash 31693, now seen corresponding path program 1 times [2023-11-29 01:40:30,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:40:30,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830258674] [2023-11-29 01:40:30,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:30,467 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 [2023-11-29 01:40:30,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:40:30,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:40:30,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:40:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:30,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:40:30,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:30,657 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 [2023-11-29 01:40:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:40:30,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:40:30,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:40:30,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830258674] [2023-11-29 01:40:30,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830258674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:40:30,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:40:30,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:40:30,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301337825] [2023-11-29 01:40:30,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:40:30,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:40:30,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:40:30,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:40:30,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:40:30,679 INFO L87 Difference]: Start difference. First operand 487 states and 544 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) [2023-11-29 01:40:33,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:33,220 INFO L93 Difference]: Finished difference Result 531 states and 593 transitions. [2023-11-29 01:40:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:40:33,222 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 [2023-11-29 01:40:33,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:33,228 INFO L225 Difference]: With dead ends: 531 [2023-11-29 01:40:33,229 INFO L226 Difference]: Without dead ends: 531 [2023-11-29 01:40:33,229 INFO L412 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 [2023-11-29 01:40:33,230 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 88 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:33,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 712 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 01:40:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-11-29 01:40:33,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 485. [2023-11-29 01:40:33,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 239 states have (on average 2.1589958158995817) internal successors, (516), 468 states have internal predecessors, (516), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:40:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 542 transitions. [2023-11-29 01:40:33,260 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 542 transitions. Word has length 2 [2023-11-29 01:40:33,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:33,260 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 542 transitions. [2023-11-29 01:40:33,260 INFO L496 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) [2023-11-29 01:40:33,261 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 542 transitions. [2023-11-29 01:40:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 01:40:33,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:33,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 01:40:33,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:40:33,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:40:33,462 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:40:33,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:33,462 INFO L85 PathProgramCache]: Analyzing trace with hash 31019244, now seen corresponding path program 1 times [2023-11-29 01:40:33,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:40:33,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431324261] [2023-11-29 01:40:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:33,464 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 [2023-11-29 01:40:33,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:40:33,465 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:40:33,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:40:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:33,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:40:33,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:33,729 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 [2023-11-29 01:40:33,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:40:33,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:40:33,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:40:33,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431324261] [2023-11-29 01:40:33,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431324261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:40:33,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:40:33,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:40:33,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349066933] [2023-11-29 01:40:33,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:40:33,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:40:33,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:40:33,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:40:33,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:40:33,846 INFO L87 Difference]: Start difference. First operand 485 states and 542 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) [2023-11-29 01:40:37,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:37,687 INFO L93 Difference]: Finished difference Result 487 states and 544 transitions. [2023-11-29 01:40:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:40:37,689 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 [2023-11-29 01:40:37,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:37,692 INFO L225 Difference]: With dead ends: 487 [2023-11-29 01:40:37,693 INFO L226 Difference]: Without dead ends: 487 [2023-11-29 01:40:37,693 INFO L412 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 [2023-11-29 01:40:37,694 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 9 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:37,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 774 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 01:40:37,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-29 01:40:37,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2023-11-29 01:40:37,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 241 states have (on average 2.1493775933609958) internal successors, (518), 470 states have internal predecessors, (518), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:40:37,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 544 transitions. [2023-11-29 01:40:37,711 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 544 transitions. Word has length 4 [2023-11-29 01:40:37,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:37,712 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 544 transitions. [2023-11-29 01:40:37,712 INFO L496 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) [2023-11-29 01:40:37,712 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 544 transitions. [2023-11-29 01:40:37,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 01:40:37,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:37,712 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-29 01:40:37,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:40:37,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:40:37,913 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:40:37,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash -254720122, now seen corresponding path program 1 times [2023-11-29 01:40:37,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:40:37,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662045853] [2023-11-29 01:40:37,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:37,915 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 [2023-11-29 01:40:37,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:40:37,916 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:40:37,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:40:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:38,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:40:38,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:38,087 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 [2023-11-29 01:40:38,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:40:38,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:40:38,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:40:38,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662045853] [2023-11-29 01:40:38,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662045853] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:40:38,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:40:38,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2023-11-29 01:40:38,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057959477] [2023-11-29 01:40:38,987 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:38,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:40:38,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:40:38,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:40:38,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:40:38,989 INFO L87 Difference]: Start difference. First operand 487 states and 544 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) [2023-11-29 01:40:58,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:58,168 INFO L93 Difference]: Finished difference Result 489 states and 546 transitions. [2023-11-29 01:40:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:40:58,171 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 [2023-11-29 01:40:58,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:58,174 INFO L225 Difference]: With dead ends: 489 [2023-11-29 01:40:58,174 INFO L226 Difference]: Without dead ends: 489 [2023-11-29 01:40:58,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:40:58,176 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 19 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:58,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1362 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 19.0s Time] [2023-11-29 01:40:58,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-29 01:40:58,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-11-29 01:40:58,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 244 states have (on average 2.1311475409836067) internal successors, (520), 472 states have internal predecessors, (520), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:40:58,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 546 transitions. [2023-11-29 01:40:58,191 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 546 transitions. Word has length 6 [2023-11-29 01:40:58,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:58,191 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 546 transitions. [2023-11-29 01:40:58,191 INFO L496 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) [2023-11-29 01:40:58,191 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 546 transitions. [2023-11-29 01:40:58,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 01:40:58,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:58,192 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2023-11-29 01:40:58,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:40:58,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:40:58,393 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:40:58,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:58,394 INFO L85 PathProgramCache]: Analyzing trace with hash -713684750, now seen corresponding path program 1 times [2023-11-29 01:40:58,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:40:58,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562756125] [2023-11-29 01:40:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:58,395 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 [2023-11-29 01:40:58,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:40:58,396 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:40:58,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:40:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:58,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:40:58,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:58,670 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:40:58,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:40:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:40:58,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:40:58,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562756125] [2023-11-29 01:40:58,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562756125] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:40:58,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:40:58,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 01:40:58,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045902063] [2023-11-29 01:40:58,830 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:40:58,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:40:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:40:58,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:40:58,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:40:58,831 INFO L87 Difference]: Start difference. First operand 489 states and 546 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) [2023-11-29 01:41:01,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:01,719 INFO L93 Difference]: Finished difference Result 499 states and 556 transitions. [2023-11-29 01:41:01,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:41:01,721 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 [2023-11-29 01:41:01,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:01,725 INFO L225 Difference]: With dead ends: 499 [2023-11-29 01:41:01,725 INFO L226 Difference]: Without dead ends: 499 [2023-11-29 01:41:01,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:41:01,726 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 5 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2402 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:01,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2402 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 01:41:01,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-11-29 01:41:01,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2023-11-29 01:41:01,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 254 states have (on average 2.0866141732283463) internal successors, (530), 482 states have internal predecessors, (530), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:41:01,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 556 transitions. [2023-11-29 01:41:01,739 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 556 transitions. Word has length 11 [2023-11-29 01:41:01,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:01,740 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 556 transitions. [2023-11-29 01:41:01,740 INFO L496 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) [2023-11-29 01:41:01,740 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 556 transitions. [2023-11-29 01:41:01,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 01:41:01,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:01,741 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2023-11-29 01:41:01,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:41:01,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:41:01,941 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:41:01,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:01,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1608727888, now seen corresponding path program 2 times [2023-11-29 01:41:01,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:41:01,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902616589] [2023-11-29 01:41:01,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:41:01,943 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 [2023-11-29 01:41:01,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:41:01,944 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:41:01,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:41:02,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:41:02,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:41:02,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:41:02,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:02,198 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-29 01:41:02,198 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 [2023-11-29 01:41:02,661 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 01:41:02,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:02,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:41:02,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902616589] [2023-11-29 01:41:02,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902616589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:02,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:02,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:41:02,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663989784] [2023-11-29 01:41:02,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:02,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:41:02,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:41:02,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:41:02,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:02,664 INFO L87 Difference]: Start difference. First operand 499 states and 556 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) [2023-11-29 01:41:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:09,402 INFO L93 Difference]: Finished difference Result 821 states and 923 transitions. [2023-11-29 01:41:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:41:09,404 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 [2023-11-29 01:41:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:09,408 INFO L225 Difference]: With dead ends: 821 [2023-11-29 01:41:09,408 INFO L226 Difference]: Without dead ends: 821 [2023-11-29 01:41:09,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:09,409 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 390 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:09,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 640 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-11-29 01:41:09,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2023-11-29 01:41:09,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 661. [2023-11-29 01:41:09,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 405 states have (on average 2.1259259259259258) internal successors, (861), 634 states have internal predecessors, (861), 24 states have call successors, (24), 8 states have call predecessors, (24), 5 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:41:09,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 905 transitions. [2023-11-29 01:41:09,428 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 905 transitions. Word has length 21 [2023-11-29 01:41:09,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:09,428 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 905 transitions. [2023-11-29 01:41:09,428 INFO L496 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) [2023-11-29 01:41:09,428 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 905 transitions. [2023-11-29 01:41:09,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 01:41:09,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:09,429 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2023-11-29 01:41:09,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 01:41:09,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:41:09,630 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:41:09,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:09,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1608727887, now seen corresponding path program 1 times [2023-11-29 01:41:09,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:41:09,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289996370] [2023-11-29 01:41:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:09,631 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 [2023-11-29 01:41:09,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:41:09,632 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:41:09,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:41:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:09,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:41:09,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:41:10,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:41:10,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:41:10,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289996370] [2023-11-29 01:41:10,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289996370] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:41:10,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:41:10,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-29 01:41:10,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734940341] [2023-11-29 01:41:10,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:10,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 01:41:10,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:41:10,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 01:41:10,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:41:10,771 INFO L87 Difference]: Start difference. First operand 661 states and 905 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) [2023-11-29 01:41:16,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:16,919 INFO L93 Difference]: Finished difference Result 665 states and 909 transitions. [2023-11-29 01:41:16,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:41:16,921 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 [2023-11-29 01:41:16,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:16,925 INFO L225 Difference]: With dead ends: 665 [2023-11-29 01:41:16,925 INFO L226 Difference]: Without dead ends: 665 [2023-11-29 01:41:16,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:41:16,926 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 3 mSDsluCounter, 5269 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5750 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:16,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5750 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-29 01:41:16,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-11-29 01:41:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2023-11-29 01:41:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 409 states have (on average 2.1149144254278727) internal successors, (865), 638 states have internal predecessors, (865), 24 states have call successors, (24), 8 states have call predecessors, (24), 5 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:41:16,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 909 transitions. [2023-11-29 01:41:16,948 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 909 transitions. Word has length 21 [2023-11-29 01:41:16,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:16,948 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 909 transitions. [2023-11-29 01:41:16,949 INFO L496 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) [2023-11-29 01:41:16,949 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 909 transitions. [2023-11-29 01:41:16,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 01:41:16,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:16,950 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1] [2023-11-29 01:41:16,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:41:17,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:41:17,151 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:41:17,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash 269800061, now seen corresponding path program 2 times [2023-11-29 01:41:17,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:41:17,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101331676] [2023-11-29 01:41:17,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:41:17,152 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 [2023-11-29 01:41:17,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:41:17,153 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:41:17,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:41:17,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:41:17,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:41:17,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:41:17,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:17,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:41:17,421 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 [2023-11-29 01:41:17,848 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:41:17,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:17,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:41:17,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101331676] [2023-11-29 01:41:17,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101331676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:17,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:17,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:41:17,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344889833] [2023-11-29 01:41:17,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:17,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:41:17,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:41:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:41:17,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:17,850 INFO L87 Difference]: Start difference. First operand 665 states and 909 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) [2023-11-29 01:41:21,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:21,823 INFO L93 Difference]: Finished difference Result 668 states and 911 transitions. [2023-11-29 01:41:21,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:41:21,825 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 [2023-11-29 01:41:21,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:21,828 INFO L225 Difference]: With dead ends: 668 [2023-11-29 01:41:21,828 INFO L226 Difference]: Without dead ends: 668 [2023-11-29 01:41:21,829 INFO L412 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 [2023-11-29 01:41:21,829 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 6 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:21,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 780 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-29 01:41:21,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2023-11-29 01:41:21,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2023-11-29 01:41:21,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 412 states have (on average 2.104368932038835) internal successors, (867), 640 states have internal predecessors, (867), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:41:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 911 transitions. [2023-11-29 01:41:21,844 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 911 transitions. Word has length 25 [2023-11-29 01:41:21,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:21,844 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 911 transitions. [2023-11-29 01:41:21,844 INFO L496 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) [2023-11-29 01:41:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 911 transitions. [2023-11-29 01:41:21,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 01:41:21,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:21,845 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:21,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:41:22,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:41:22,046 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:41:22,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1993861066, now seen corresponding path program 1 times [2023-11-29 01:41:22,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:41:22,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810462262] [2023-11-29 01:41:22,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:22,048 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 [2023-11-29 01:41:22,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:41:22,049 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:41:22,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 01:41:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:22,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:41:22,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:22,600 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-29 01:41:22,600 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 [2023-11-29 01:41:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:41:22,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:22,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:41:22,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810462262] [2023-11-29 01:41:22,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810462262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:22,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:22,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:41:22,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827513977] [2023-11-29 01:41:22,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:22,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:41:22,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:41:22,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:41:22,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:22,649 INFO L87 Difference]: Start difference. First operand 668 states and 911 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) [2023-11-29 01:41:28,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:28,679 INFO L93 Difference]: Finished difference Result 687 states and 906 transitions. [2023-11-29 01:41:28,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:41:28,681 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 32 [2023-11-29 01:41:28,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:28,685 INFO L225 Difference]: With dead ends: 687 [2023-11-29 01:41:28,685 INFO L226 Difference]: Without dead ends: 687 [2023-11-29 01:41:28,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:28,686 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 74 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:28,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 713 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-29 01:41:28,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-11-29 01:41:28,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 663. [2023-11-29 01:41:28,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 412 states have (on average 2.092233009708738) internal successors, (862), 635 states have internal predecessors, (862), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:41:28,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 906 transitions. [2023-11-29 01:41:28,704 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 906 transitions. Word has length 32 [2023-11-29 01:41:28,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:28,705 INFO L495 AbstractCegarLoop]: Abstraction has 663 states and 906 transitions. [2023-11-29 01:41:28,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-11-29 01:41:28,705 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 906 transitions. [2023-11-29 01:41:28,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 01:41:28,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:28,706 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:28,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 01:41:28,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:41:28,906 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:41:28,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:28,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1993861065, now seen corresponding path program 1 times [2023-11-29 01:41:28,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:41:28,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394067697] [2023-11-29 01:41:28,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:28,908 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 [2023-11-29 01:41:28,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:41:28,909 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:41:28,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 01:41:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:29,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:41:29,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:29,571 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-29 01:41:29,571 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 19 treesize of output 21 [2023-11-29 01:41:29,723 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:41:29,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:29,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:41:29,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394067697] [2023-11-29 01:41:29,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394067697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:29,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:29,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:41:29,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613406126] [2023-11-29 01:41:29,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:29,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:41:29,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:41:29,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:41:29,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:41:29,725 INFO L87 Difference]: Start difference. First operand 663 states and 906 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2023-11-29 01:41:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:34,629 INFO L93 Difference]: Finished difference Result 664 states and 908 transitions. [2023-11-29 01:41:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:41:34,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) Word has length 32 [2023-11-29 01:41:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:34,636 INFO L225 Difference]: With dead ends: 664 [2023-11-29 01:41:34,637 INFO L226 Difference]: Without dead ends: 664 [2023-11-29 01:41:34,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:41:34,638 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 197 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:34,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1762 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-29 01:41:34,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-11-29 01:41:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 662. [2023-11-29 01:41:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 412 states have (on average 2.0898058252427183) internal successors, (861), 634 states have internal predecessors, (861), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:41:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 905 transitions. [2023-11-29 01:41:34,660 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 905 transitions. Word has length 32 [2023-11-29 01:41:34,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:34,660 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 905 transitions. [2023-11-29 01:41:34,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2023-11-29 01:41:34,661 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 905 transitions. [2023-11-29 01:41:34,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 01:41:34,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:34,662 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:34,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 01:41:34,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:41:34,863 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:41:34,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:34,864 INFO L85 PathProgramCache]: Analyzing trace with hash -544514931, now seen corresponding path program 1 times [2023-11-29 01:41:34,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:41:34,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648857865] [2023-11-29 01:41:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:34,865 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 [2023-11-29 01:41:34,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:41:34,866 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:41:34,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 01:41:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:35,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:41:35,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:35,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:41:35,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-29 01:41:35,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-29 01:41:35,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:41:35,947 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 19 treesize of output 14 [2023-11-29 01:41:35,972 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 01:41:35,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 01:41:36,129 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:41:36,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:36,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:41:36,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648857865] [2023-11-29 01:41:36,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648857865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:36,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:36,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:41:36,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316101560] [2023-11-29 01:41:36,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:36,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:41:36,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:41:36,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:41:36,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:41:36,131 INFO L87 Difference]: Start difference. First operand 662 states and 905 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2023-11-29 01:41:51,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:51,055 INFO L93 Difference]: Finished difference Result 695 states and 942 transitions. [2023-11-29 01:41:51,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:41:51,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) Word has length 34 [2023-11-29 01:41:51,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:51,061 INFO L225 Difference]: With dead ends: 695 [2023-11-29 01:41:51,061 INFO L226 Difference]: Without dead ends: 695 [2023-11-29 01:41:51,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:41:51,062 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 259 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:51,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 2076 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2023-11-29 01:41:51,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2023-11-29 01:41:51,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 671. [2023-11-29 01:41:51,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 421 states have (on average 2.0831353919239906) internal successors, (877), 643 states have internal predecessors, (877), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:41:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 921 transitions. [2023-11-29 01:41:51,083 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 921 transitions. Word has length 34 [2023-11-29 01:41:51,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:51,083 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 921 transitions. [2023-11-29 01:41:51,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2023-11-29 01:41:51,084 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 921 transitions. [2023-11-29 01:41:51,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 01:41:51,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:51,085 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:51,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 01:41:51,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:41:51,286 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:41:51,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:51,287 INFO L85 PathProgramCache]: Analyzing trace with hash 707710334, now seen corresponding path program 1 times [2023-11-29 01:41:51,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:41:51,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32845655] [2023-11-29 01:41:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:51,288 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 [2023-11-29 01:41:51,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:41:51,289 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:41:51,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 01:41:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:51,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:41:51,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:51,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:41:51,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:41:51,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-29 01:41:51,934 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-29 01:41:51,934 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 [2023-11-29 01:41:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:41:51,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:51,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:41:51,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32845655] [2023-11-29 01:41:51,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32845655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:51,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:51,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:41:51,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029341920] [2023-11-29 01:41:51,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:51,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:41:51,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:41:51,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:41:51,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:51,977 INFO L87 Difference]: Start difference. First operand 671 states and 921 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 01:41:54,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:54,523 INFO L93 Difference]: Finished difference Result 694 states and 919 transitions. [2023-11-29 01:41:54,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:41:54,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) Word has length 36 [2023-11-29 01:41:54,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:54,527 INFO L225 Difference]: With dead ends: 694 [2023-11-29 01:41:54,527 INFO L226 Difference]: Without dead ends: 694 [2023-11-29 01:41:54,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:54,528 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 74 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:54,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 712 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 01:41:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-11-29 01:41:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 670. [2023-11-29 01:41:54,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 421 states have (on average 2.0783847980997625) internal successors, (875), 642 states have internal predecessors, (875), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:41:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 919 transitions. [2023-11-29 01:41:54,542 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 919 transitions. Word has length 36 [2023-11-29 01:41:54,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:54,542 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 919 transitions. [2023-11-29 01:41:54,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 01:41:54,542 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 919 transitions. [2023-11-29 01:41:54,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 01:41:54,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:54,543 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:41:54,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-29 01:41:54,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:41:54,744 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:41:54,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:54,744 INFO L85 PathProgramCache]: Analyzing trace with hash 707710335, now seen corresponding path program 1 times [2023-11-29 01:41:54,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:41:54,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501222328] [2023-11-29 01:41:54,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:54,745 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 [2023-11-29 01:41:54,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:41:54,746 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:41:54,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 01:41:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:55,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:41:55,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:55,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-29 01:41:55,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:41:55,473 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 11 treesize of output 10 [2023-11-29 01:41:55,503 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 [2023-11-29 01:41:55,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:41:55,842 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 19 treesize of output 14 [2023-11-29 01:41:55,894 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 01:41:55,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 01:41:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:41:56,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:56,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:41:56,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501222328] [2023-11-29 01:41:56,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501222328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:56,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:56,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:41:56,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405867324] [2023-11-29 01:41:56,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:56,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:41:56,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:41:56,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:41:56,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:41:56,102 INFO L87 Difference]: Start difference. First operand 670 states and 919 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2023-11-29 01:42:18,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:18,119 INFO L93 Difference]: Finished difference Result 699 states and 919 transitions. [2023-11-29 01:42:18,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:42:18,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) Word has length 36 [2023-11-29 01:42:18,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:18,124 INFO L225 Difference]: With dead ends: 699 [2023-11-29 01:42:18,124 INFO L226 Difference]: Without dead ends: 699 [2023-11-29 01:42:18,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:42:18,125 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 339 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:18,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 2108 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 21.7s Time] [2023-11-29 01:42:18,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-11-29 01:42:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 670. [2023-11-29 01:42:18,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 421 states have (on average 2.0760095011876483) internal successors, (874), 642 states have internal predecessors, (874), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:42:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 918 transitions. [2023-11-29 01:42:18,139 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 918 transitions. Word has length 36 [2023-11-29 01:42:18,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:18,139 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 918 transitions. [2023-11-29 01:42:18,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2023-11-29 01:42:18,139 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 918 transitions. [2023-11-29 01:42:18,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 01:42:18,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:18,140 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:42:18,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 01:42:18,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:42:18,341 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:42:18,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:18,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1505342538, now seen corresponding path program 1 times [2023-11-29 01:42:18,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:42:18,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907518992] [2023-11-29 01:42:18,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:18,342 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 [2023-11-29 01:42:18,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:42:18,343 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:42:18,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 01:42:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:18,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:42:18,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:19,009 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 [2023-11-29 01:42:19,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2023-11-29 01:42:19,287 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-29 01:42:19,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 28 [2023-11-29 01:42:19,401 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-29 01:42:19,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 14 [2023-11-29 01:42:19,447 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:42:19,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:42:19,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:42:19,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907518992] [2023-11-29 01:42:19,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907518992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:42:19,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:42:19,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:42:19,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727308402] [2023-11-29 01:42:19,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:42:19,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:42:19,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:42:19,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:42:19,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:42:19,449 INFO L87 Difference]: Start difference. First operand 670 states and 918 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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) [2023-11-29 01:42:30,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:42:34,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:36,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:36,229 INFO L93 Difference]: Finished difference Result 667 states and 914 transitions. [2023-11-29 01:42:36,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:42:36,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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) Word has length 38 [2023-11-29 01:42:36,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:36,234 INFO L225 Difference]: With dead ends: 667 [2023-11-29 01:42:36,234 INFO L226 Difference]: Without dead ends: 667 [2023-11-29 01:42:36,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:42:36,235 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 193 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:36,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1392 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 717 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2023-11-29 01:42:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2023-11-29 01:42:36,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2023-11-29 01:42:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 421 states have (on average 2.0665083135391926) internal successors, (870), 639 states have internal predecessors, (870), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:42:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 914 transitions. [2023-11-29 01:42:36,251 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 914 transitions. Word has length 38 [2023-11-29 01:42:36,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:36,251 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 914 transitions. [2023-11-29 01:42:36,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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) [2023-11-29 01:42:36,252 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 914 transitions. [2023-11-29 01:42:36,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 01:42:36,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:36,253 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:42:36,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-29 01:42:36,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:42:36,464 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:42:36,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:36,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1505342539, now seen corresponding path program 1 times [2023-11-29 01:42:36,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:42:36,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966075930] [2023-11-29 01:42:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:36,465 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 [2023-11-29 01:42:36,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:42:36,466 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:42:36,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 01:42:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:37,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:42:37,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:37,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-29 01:42:37,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 01:42:37,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-29 01:42:37,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 01:42:37,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 18 [2023-11-29 01:42:37,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 16 [2023-11-29 01:42:37,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9 [2023-11-29 01:42:37,532 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:42:37,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:42:37,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:42:37,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966075930] [2023-11-29 01:42:37,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966075930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:42:37,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:42:37,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:42:37,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113478357] [2023-11-29 01:42:37,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:42:37,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:42:37,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:42:37,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:42:37,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:42:37,534 INFO L87 Difference]: Start difference. First operand 667 states and 914 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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) [2023-11-29 01:42:47,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:49,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:49,194 INFO L93 Difference]: Finished difference Result 666 states and 912 transitions. [2023-11-29 01:42:49,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:42:49,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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) Word has length 38 [2023-11-29 01:42:49,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:49,199 INFO L225 Difference]: With dead ends: 666 [2023-11-29 01:42:49,200 INFO L226 Difference]: Without dead ends: 666 [2023-11-29 01:42:49,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:42:49,201 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 190 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:49,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1408 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 693 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2023-11-29 01:42:49,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-11-29 01:42:49,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2023-11-29 01:42:49,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 421 states have (on average 2.0617577197149646) internal successors, (868), 638 states have internal predecessors, (868), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:42:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 912 transitions. [2023-11-29 01:42:49,217 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 912 transitions. Word has length 38 [2023-11-29 01:42:49,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:49,218 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 912 transitions. [2023-11-29 01:42:49,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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) [2023-11-29 01:42:49,218 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 912 transitions. [2023-11-29 01:42:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 01:42:49,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:49,219 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:42:49,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 01:42:49,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:42:49,428 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:42:49,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:49,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1922797208, now seen corresponding path program 1 times [2023-11-29 01:42:49,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:42:49,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193317577] [2023-11-29 01:42:49,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:49,430 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 [2023-11-29 01:42:49,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:42:49,430 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:42:49,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 01:42:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:50,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:42:50,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:50,273 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 01:42:50,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 01:42:50,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2023-11-29 01:42:50,664 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-29 01:42:50,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 47 treesize of output 32 [2023-11-29 01:42:51,146 INFO L349 Elim1Store]: treesize reduction 46, result has 24.6 percent of original size [2023-11-29 01:42:51,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 69 [2023-11-29 01:42:51,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-29 01:42:51,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 15 [2023-11-29 01:42:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:42:51,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:42:51,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:42:51,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193317577] [2023-11-29 01:42:51,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193317577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:42:51,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:42:51,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:42:51,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765575811] [2023-11-29 01:42:51,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:42:51,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:42:51,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:42:51,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:42:51,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:42:51,474 INFO L87 Difference]: Start difference. First operand 666 states and 912 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 11 states have internal predecessors, (21), 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) [2023-11-29 01:43:03,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:07,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:43:11,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:43:13,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:13,977 INFO L93 Difference]: Finished difference Result 699 states and 924 transitions. [2023-11-29 01:43:13,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:43:13,979 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 11 states have internal predecessors, (21), 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) Word has length 41 [2023-11-29 01:43:13,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:13,982 INFO L225 Difference]: With dead ends: 699 [2023-11-29 01:43:13,983 INFO L226 Difference]: Without dead ends: 699 [2023-11-29 01:43:13,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:43:13,983 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 244 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:13,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1624 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1011 Invalid, 3 Unknown, 0 Unchecked, 22.2s Time] [2023-11-29 01:43:13,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-11-29 01:43:14,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 672. [2023-11-29 01:43:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 427 states have (on average 2.0585480093676813) internal successors, (879), 644 states have internal predecessors, (879), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:43:14,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 923 transitions. [2023-11-29 01:43:14,004 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 923 transitions. Word has length 41 [2023-11-29 01:43:14,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:14,005 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 923 transitions. [2023-11-29 01:43:14,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 11 states have internal predecessors, (21), 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) [2023-11-29 01:43:14,005 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 923 transitions. [2023-11-29 01:43:14,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 01:43:14,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:14,006 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:14,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-29 01:43:14,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:14,208 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:43:14,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:14,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1922797209, now seen corresponding path program 1 times [2023-11-29 01:43:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:14,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951771115] [2023-11-29 01:43:14,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:14,210 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 [2023-11-29 01:43:14,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:14,211 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:43:14,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 01:43:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:15,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:43:15,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:15,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-29 01:43:15,140 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 01:43:15,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 01:43:15,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 01:43:15,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 01:43:15,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-29 01:43:15,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 29 [2023-11-29 01:43:15,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 16 [2023-11-29 01:43:15,753 INFO L349 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-29 01:43:15,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 75 [2023-11-29 01:43:15,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 39 treesize of output 16 [2023-11-29 01:43:15,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 13 [2023-11-29 01:43:16,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 12 treesize of output 3 [2023-11-29 01:43:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:43:16,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:43:16,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:16,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951771115] [2023-11-29 01:43:16,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951771115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:16,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:16,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:43:16,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105961516] [2023-11-29 01:43:16,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:16,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:43:16,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:16,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:43:16,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:43:16,076 INFO L87 Difference]: Start difference. First operand 672 states and 923 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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) [2023-11-29 01:43:30,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:34,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:38,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:41,716 INFO L93 Difference]: Finished difference Result 697 states and 919 transitions. [2023-11-29 01:43:41,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:43:41,719 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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) Word has length 41 [2023-11-29 01:43:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:41,722 INFO L225 Difference]: With dead ends: 697 [2023-11-29 01:43:41,722 INFO L226 Difference]: Without dead ends: 697 [2023-11-29 01:43:41,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:43:41,723 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 245 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:41,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 2055 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1426 Invalid, 3 Unknown, 0 Unchecked, 25.1s Time] [2023-11-29 01:43:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2023-11-29 01:43:41,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 672. [2023-11-29 01:43:41,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 427 states have (on average 2.0491803278688523) internal successors, (875), 644 states have internal predecessors, (875), 24 states have call successors, (24), 9 states have call predecessors, (24), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:43:41,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 919 transitions. [2023-11-29 01:43:41,740 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 919 transitions. Word has length 41 [2023-11-29 01:43:41,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:41,740 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 919 transitions. [2023-11-29 01:43:41,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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) [2023-11-29 01:43:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 919 transitions. [2023-11-29 01:43:41,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 01:43:41,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:41,741 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:41,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-29 01:43:41,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:41,942 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-29 01:43:41,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:41,942 INFO L85 PathProgramCache]: Analyzing trace with hash 88330740, now seen corresponding path program 1 times [2023-11-29 01:43:41,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:41,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911699369] [2023-11-29 01:43:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:41,943 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 [2023-11-29 01:43:41,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:41,944 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 01:43:41,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b1a3c13-2bbd-4a2b-994d-d4404ebf5774/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-29 01:43:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:42,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:43:42,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:42,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-29 01:43:43,107 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 01:43:43,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 01:43:43,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-29 01:43:43,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 38 treesize of output 31 [2023-11-29 01:43:43,673 INFO L349 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-29 01:43:43,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 55 [2023-11-29 01:43:43,932 INFO L349 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-29 01:43:43,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 55 [2023-11-29 01:43:44,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2023-11-29 01:43:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-29 01:43:44,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:44,674 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1352 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0) v_ArrVal_1352) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2023-11-29 01:43:44,729 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1352 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1351 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem217#1.base| v_ArrVal_1351))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1352)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 01:43:44,773 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1352 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1351 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1351))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1352)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 01:43:44,823 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1352 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1351 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1350 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1350))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1351)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1352)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 01:43:44,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:43:44,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 78 [2023-11-29 01:43:44,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4389 treesize of output 3534 [2023-11-29 01:43:45,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1276 treesize of output 1052 [2023-11-29 01:43:45,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1052 treesize of output 940 [2023-11-29 01:43:45,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 940 treesize of output 786 [2023-11-29 01:44:31,325 WARN L293 SmtUtils]: Spent 42.40s on a formula simplification that was a NOOP. DAG size: 1094 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-29 01:44:31,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:44:31,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 0 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 210 case distinctions, treesize of input 293 treesize of output 2349