./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/sync-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sync-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu --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 171516ccf7ce56a0fe5d7e6e8d7c3265875afe4246c9b2f5548b0fe9f9b93621 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:03,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:03,980 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-19 07:59:03,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:03,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:04,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:04,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:04,032 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:04,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:04,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:04,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:04,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:04,042 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:04,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:04,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:04,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:04,045 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:59:04,045 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:59:04,046 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:59:04,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:04,047 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:59:04,047 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:59:04,048 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:04,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:04,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:04,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:04,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:04,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:04,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:04,052 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:04,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:59:04,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:04,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:04,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:04,055 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:04,055 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_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 171516ccf7ce56a0fe5d7e6e8d7c3265875afe4246c9b2f5548b0fe9f9b93621 [2023-11-19 07:59:04,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:04,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:04,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:04,382 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:04,383 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:04,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/sync-2.i [2023-11-19 07:59:07,546 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:07,992 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:07,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/sv-benchmarks/c/busybox-1.22.0/sync-2.i [2023-11-19 07:59:08,021 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/data/b1dee5a93/5b3feb723aec447b844783619a21f457/FLAG1188d9f2a [2023-11-19 07:59:08,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/data/b1dee5a93/5b3feb723aec447b844783619a21f457 [2023-11-19 07:59:08,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:08,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:08,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:08,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:08,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:08,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:08" (1/1) ... [2023-11-19 07:59:08,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45dae789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:08, skipping insertion in model container [2023-11-19 07:59:08,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:08" (1/1) ... [2023-11-19 07:59:08,135 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:09,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:09,247 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) [2023-11-19 07:59:09,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e0511d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:09, skipping insertion in model container [2023-11-19 07:59:09,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:09,249 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:59:09,250 INFO L158 Benchmark]: Toolchain (without parser) took 1207.64ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 84.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:09,251 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:59:09,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1204.88ms. Allocated memory is still 153.1MB. Free memory was 107.2MB in the beginning and 84.5MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:59:09,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1204.88ms. Allocated memory is still 153.1MB. Free memory was 107.2MB in the beginning and 84.5MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1876]: 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_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sync-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu --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 171516ccf7ce56a0fe5d7e6e8d7c3265875afe4246c9b2f5548b0fe9f9b93621 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:11,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:11,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-19 07:59:11,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:11,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:11,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:11,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:11,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:11,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:11,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:11,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:11,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:11,997 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:11,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:12,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:12,001 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:12,001 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:59:12,002 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:59:12,002 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:59:12,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:12,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:59:12,005 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:59:12,005 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:59:12,006 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:59:12,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:12,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:12,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:12,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:12,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:12,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:12,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:12,011 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:59:12,011 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:59:12,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:12,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:12,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:12,013 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:59:12,013 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:12,013 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_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 171516ccf7ce56a0fe5d7e6e8d7c3265875afe4246c9b2f5548b0fe9f9b93621 [2023-11-19 07:59:12,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:12,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:12,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:12,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:12,426 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:12,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/sync-2.i [2023-11-19 07:59:15,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:15,977 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:15,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/sv-benchmarks/c/busybox-1.22.0/sync-2.i [2023-11-19 07:59:16,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/data/8b4e8f65a/56a9dcffc044407d9958b76db7490b10/FLAGd8a76b841 [2023-11-19 07:59:16,026 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/data/8b4e8f65a/56a9dcffc044407d9958b76db7490b10 [2023-11-19 07:59:16,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:16,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:16,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:16,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:16,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:16,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123c38c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:16, skipping insertion in model container [2023-11-19 07:59:16,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:16" (1/1) ... [2023-11-19 07:59:16,127 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:17,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:17,214 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:59:17,233 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:17,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:17,391 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:17,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:17,843 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:59:17,852 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:17,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17 WrapperNode [2023-11-19 07:59:17,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:17,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:17,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:17,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:17,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:17,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,016 INFO L138 Inliner]: procedures = 550, calls = 133, calls flagged for inlining = 16, calls inlined = 15, statements flattened = 425 [2023-11-19 07:59:18,025 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:18,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:18,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:18,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:18,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:18,151 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:18,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:18,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:18,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (1/1) ... [2023-11-19 07:59:18,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:18,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:18,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:59:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:59:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:59:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:59:18,236 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 07:59:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:59:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-19 07:59:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-19 07:59:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-19 07:59:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:18,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:59:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:59:18,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:59:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:59:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:59:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:59:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:59:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:59:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:59:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:59:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 07:59:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:59:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 07:59:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-19 07:59:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 07:59:18,750 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:18,753 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:21,735 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:21,751 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:21,752 INFO L302 CfgBuilder]: Removed 9 assume(true) statements. [2023-11-19 07:59:21,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:21 BoogieIcfgContainer [2023-11-19 07:59:21,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:21,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:59:21,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:59:21,768 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:59:21,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:16" (1/3) ... [2023-11-19 07:59:21,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4f45da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:21, skipping insertion in model container [2023-11-19 07:59:21,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:17" (2/3) ... [2023-11-19 07:59:21,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4f45da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:21, skipping insertion in model container [2023-11-19 07:59:21,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:21" (3/3) ... [2023-11-19 07:59:21,773 INFO L112 eAbstractionObserver]: Analyzing ICFG sync-2.i [2023-11-19 07:59:21,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:59:21,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 129 error locations. [2023-11-19 07:59:21,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:21,854 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;@21abd478, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:21,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 129 error locations. [2023-11-19 07:59:21,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 322 states, 183 states have (on average 1.9180327868852458) internal successors, (351), 312 states have internal predecessors, (351), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:59:21,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:59:21,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:21,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:59:21,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 126 more)] === [2023-11-19 07:59:21,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash 62626, now seen corresponding path program 1 times [2023-11-19 07:59:21,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:21,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341430466] [2023-11-19 07:59:21,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:21,908 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 [2023-11-19 07:59:21,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:21,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:21,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:22,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:59:22,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:22,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:59:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:22,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:22,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:22,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341430466] [2023-11-19 07:59:22,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341430466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:22,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:22,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:22,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717397353] [2023-11-19 07:59:22,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:22,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:22,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:22,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:22,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:22,321 INFO L87 Difference]: Start difference. First operand has 322 states, 183 states have (on average 1.9180327868852458) internal successors, (351), 312 states have internal predecessors, (351), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-19 07:59:23,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:23,564 INFO L93 Difference]: Finished difference Result 456 states and 506 transitions. [2023-11-19 07:59:23,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:23,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-19 07:59:23,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:23,581 INFO L225 Difference]: With dead ends: 456 [2023-11-19 07:59:23,581 INFO L226 Difference]: Without dead ends: 454 [2023-11-19 07:59:23,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:23,588 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 282 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:23,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 403 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:59:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-19 07:59:23,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 317. [2023-11-19 07:59:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 182 states have (on average 1.8461538461538463) internal successors, (336), 307 states have internal predecessors, (336), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:59:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 350 transitions. [2023-11-19 07:59:23,656 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 350 transitions. Word has length 3 [2023-11-19 07:59:23,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:23,657 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 350 transitions. [2023-11-19 07:59:23,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-19 07:59:23,657 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 350 transitions. [2023-11-19 07:59:23,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:59:23,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:23,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:59:23,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:23,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:23,863 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 126 more)] === [2023-11-19 07:59:23,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:23,864 INFO L85 PathProgramCache]: Analyzing trace with hash 62627, now seen corresponding path program 1 times [2023-11-19 07:59:23,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:23,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169384396] [2023-11-19 07:59:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:23,865 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 [2023-11-19 07:59:23,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:23,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:23,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:24,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:24,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:24,125 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 [2023-11-19 07:59:24,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:24,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:24,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:24,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169384396] [2023-11-19 07:59:24,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169384396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:24,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:24,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:24,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296657153] [2023-11-19 07:59:24,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:24,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:24,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:24,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:24,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:24,149 INFO L87 Difference]: Start difference. First operand 317 states and 350 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-19 07:59:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:25,457 INFO L93 Difference]: Finished difference Result 316 states and 349 transitions. [2023-11-19 07:59:25,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:25,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-19 07:59:25,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:25,461 INFO L225 Difference]: With dead ends: 316 [2023-11-19 07:59:25,461 INFO L226 Difference]: Without dead ends: 316 [2023-11-19 07:59:25,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:25,463 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 13 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:25,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 558 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 07:59:25,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-19 07:59:25,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2023-11-19 07:59:25,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 182 states have (on average 1.8406593406593406) internal successors, (335), 306 states have internal predecessors, (335), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:59:25,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 349 transitions. [2023-11-19 07:59:25,484 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 349 transitions. Word has length 3 [2023-11-19 07:59:25,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:25,485 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 349 transitions. [2023-11-19 07:59:25,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-19 07:59:25,485 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 349 transitions. [2023-11-19 07:59:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:59:25,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:25,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:59:25,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 07:59:25,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:25,690 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 126 more)] === [2023-11-19 07:59:25,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1865700361, now seen corresponding path program 1 times [2023-11-19 07:59:25,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:25,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655852871] [2023-11-19 07:59:25,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:25,693 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 [2023-11-19 07:59:25,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:25,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:25,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:59:25,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:25,918 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 [2023-11-19 07:59:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:26,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:26,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:26,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655852871] [2023-11-19 07:59:26,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655852871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:26,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:26,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:26,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511707221] [2023-11-19 07:59:26,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:26,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:59:26,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:26,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:59:26,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:26,037 INFO L87 Difference]: Start difference. First operand 316 states and 349 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-19 07:59:27,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:27,605 INFO L93 Difference]: Finished difference Result 320 states and 353 transitions. [2023-11-19 07:59:27,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:59:27,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 [2023-11-19 07:59:27,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:27,610 INFO L225 Difference]: With dead ends: 320 [2023-11-19 07:59:27,610 INFO L226 Difference]: Without dead ends: 320 [2023-11-19 07:59:27,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:27,612 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 14 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:27,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 775 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 07:59:27,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-19 07:59:27,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 318. [2023-11-19 07:59:27,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 184 states have (on average 1.8315217391304348) internal successors, (337), 308 states have internal predecessors, (337), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:59:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 351 transitions. [2023-11-19 07:59:27,631 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 351 transitions. Word has length 6 [2023-11-19 07:59:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:27,631 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 351 transitions. [2023-11-19 07:59:27,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-19 07:59:27,632 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 351 transitions. [2023-11-19 07:59:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:59:27,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:27,632 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:27,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:27,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:27,855 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 126 more)] === [2023-11-19 07:59:27,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:27,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1432679500, now seen corresponding path program 1 times [2023-11-19 07:59:27,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:27,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985311562] [2023-11-19 07:59:27,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:27,857 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 [2023-11-19 07:59:27,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:27,858 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:27,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:28,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:59:28,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:28,079 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 [2023-11-19 07:59:28,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:28,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:28,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985311562] [2023-11-19 07:59:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985311562] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:28,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:59:28,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:59:28,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830365492] [2023-11-19 07:59:28,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:28,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:59:28,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:59:28,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:59:28,940 INFO L87 Difference]: Start difference. First operand 318 states and 351 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 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) [2023-11-19 07:59:35,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:35,007 INFO L93 Difference]: Finished difference Result 324 states and 357 transitions. [2023-11-19 07:59:35,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:59:35,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 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 10 [2023-11-19 07:59:35,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:35,012 INFO L225 Difference]: With dead ends: 324 [2023-11-19 07:59:35,012 INFO L226 Difference]: Without dead ends: 324 [2023-11-19 07:59:35,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:59:35,013 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 21 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:35,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1210 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-19 07:59:35,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-11-19 07:59:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2023-11-19 07:59:35,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 191 states have (on average 1.7958115183246073) internal successors, (343), 314 states have internal predecessors, (343), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:59:35,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 357 transitions. [2023-11-19 07:59:35,031 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 357 transitions. Word has length 10 [2023-11-19 07:59:35,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:35,031 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 357 transitions. [2023-11-19 07:59:35,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 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) [2023-11-19 07:59:35,032 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 357 transitions. [2023-11-19 07:59:35,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:59:35,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:35,033 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:35,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:35,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:35,239 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 126 more)] === [2023-11-19 07:59:35,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:35,240 INFO L85 PathProgramCache]: Analyzing trace with hash 779983744, now seen corresponding path program 1 times [2023-11-19 07:59:35,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:35,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130133185] [2023-11-19 07:59:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:35,242 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 [2023-11-19 07:59:35,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:35,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:35,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:35,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:59:35,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:35,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:35,743 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:35,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:35,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130133185] [2023-11-19 07:59:35,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130133185] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:35,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:59:35,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-19 07:59:35,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215488489] [2023-11-19 07:59:35,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:35,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:59:35,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:35,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:59:35,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:59:35,746 INFO L87 Difference]: Start difference. First operand 324 states and 357 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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) [2023-11-19 07:59:36,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:36,171 INFO L93 Difference]: Finished difference Result 344 states and 377 transitions. [2023-11-19 07:59:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:59:36,172 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 19 [2023-11-19 07:59:36,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:36,174 INFO L225 Difference]: With dead ends: 344 [2023-11-19 07:59:36,174 INFO L226 Difference]: Without dead ends: 344 [2023-11-19 07:59:36,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:59:36,181 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 15 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:36,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1723 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:59:36,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-19 07:59:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-11-19 07:59:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 211 states have (on average 1.7203791469194314) internal successors, (363), 334 states have internal predecessors, (363), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:59:36,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 377 transitions. [2023-11-19 07:59:36,199 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 377 transitions. Word has length 19 [2023-11-19 07:59:36,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:36,199 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 377 transitions. [2023-11-19 07:59:36,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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) [2023-11-19 07:59:36,200 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 377 transitions. [2023-11-19 07:59:36,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 07:59:36,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:36,201 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:36,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:36,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:36,407 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 126 more)] === [2023-11-19 07:59:36,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:36,408 INFO L85 PathProgramCache]: Analyzing trace with hash -234229359, now seen corresponding path program 2 times [2023-11-19 07:59:36,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:36,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989608533] [2023-11-19 07:59:36,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:59:36,409 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 [2023-11-19 07:59:36,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:36,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:36,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:36,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:59:36,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:59:36,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:59:36,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:36,699 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-19 07:59:36,700 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 [2023-11-19 07:59:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 07:59:37,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:37,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:37,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989608533] [2023-11-19 07:59:37,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989608533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:37,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:37,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:59:37,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786066832] [2023-11-19 07:59:37,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:37,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:37,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:37,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:37,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:37,124 INFO L87 Difference]: Start difference. First operand 344 states and 377 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2023-11-19 07:59:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:38,235 INFO L93 Difference]: Finished difference Result 500 states and 549 transitions. [2023-11-19 07:59:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:38,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 39 [2023-11-19 07:59:38,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:38,239 INFO L225 Difference]: With dead ends: 500 [2023-11-19 07:59:38,239 INFO L226 Difference]: Without dead ends: 500 [2023-11-19 07:59:38,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:38,241 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 304 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:38,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 415 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:59:38,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-19 07:59:38,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 414. [2023-11-19 07:59:38,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 276 states have (on average 1.7608695652173914) internal successors, (486), 398 states have internal predecessors, (486), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:59:38,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 508 transitions. [2023-11-19 07:59:38,257 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 508 transitions. Word has length 39 [2023-11-19 07:59:38,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:38,257 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 508 transitions. [2023-11-19 07:59:38,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2023-11-19 07:59:38,258 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 508 transitions. [2023-11-19 07:59:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 07:59:38,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:38,259 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:38,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:38,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:38,464 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 126 more)] === [2023-11-19 07:59:38,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:38,464 INFO L85 PathProgramCache]: Analyzing trace with hash -234229358, now seen corresponding path program 1 times [2023-11-19 07:59:38,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:38,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894161564] [2023-11-19 07:59:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:38,465 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 [2023-11-19 07:59:38,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:38,466 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:38,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:38,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:59:38,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:39,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:39,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:39,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894161564] [2023-11-19 07:59:39,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894161564] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:39,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:59:39,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-19 07:59:39,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814350994] [2023-11-19 07:59:39,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:39,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 07:59:39,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:39,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 07:59:39,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:59:39,456 INFO L87 Difference]: Start difference. First operand 414 states and 508 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 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) [2023-11-19 07:59:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:40,321 INFO L93 Difference]: Finished difference Result 422 states and 516 transitions. [2023-11-19 07:59:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:59:40,322 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 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 39 [2023-11-19 07:59:40,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:40,325 INFO L225 Difference]: With dead ends: 422 [2023-11-19 07:59:40,325 INFO L226 Difference]: Without dead ends: 422 [2023-11-19 07:59:40,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:59:40,327 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 6 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:40,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4495 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:59:40,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-11-19 07:59:40,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2023-11-19 07:59:40,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 284 states have (on average 1.7394366197183098) internal successors, (494), 406 states have internal predecessors, (494), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:59:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 516 transitions. [2023-11-19 07:59:40,349 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 516 transitions. Word has length 39 [2023-11-19 07:59:40,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:40,350 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 516 transitions. [2023-11-19 07:59:40,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 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) [2023-11-19 07:59:40,351 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 516 transitions. [2023-11-19 07:59:40,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 07:59:40,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:40,355 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:40,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-19 07:59:40,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:40,568 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 126 more)] === [2023-11-19 07:59:40,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:40,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1106246836, now seen corresponding path program 2 times [2023-11-19 07:59:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:40,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006480291] [2023-11-19 07:59:40,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:59:40,570 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 [2023-11-19 07:59:40,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:40,571 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:40,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:40,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:59:40,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:59:40,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:59:40,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:40,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:40,892 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 [2023-11-19 07:59:41,536 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 07:59:41,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:41,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:41,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006480291] [2023-11-19 07:59:41,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006480291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:41,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:41,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:41,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301468062] [2023-11-19 07:59:41,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:41,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:59:41,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:41,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:59:41,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:41,539 INFO L87 Difference]: Start difference. First operand 422 states and 516 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-19 07:59:43,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:43,546 INFO L93 Difference]: Finished difference Result 549 states and 598 transitions. [2023-11-19 07:59:43,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:59:43,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 47 [2023-11-19 07:59:43,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:43,553 INFO L225 Difference]: With dead ends: 549 [2023-11-19 07:59:43,553 INFO L226 Difference]: Without dead ends: 549 [2023-11-19 07:59:43,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:43,554 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 647 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:43,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 397 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 07:59:43,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-19 07:59:43,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 421. [2023-11-19 07:59:43,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 284 states have (on average 1.7359154929577465) internal successors, (493), 405 states have internal predecessors, (493), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:59:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 515 transitions. [2023-11-19 07:59:43,570 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 515 transitions. Word has length 47 [2023-11-19 07:59:43,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:43,570 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 515 transitions. [2023-11-19 07:59:43,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-19 07:59:43,571 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 515 transitions. [2023-11-19 07:59:43,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:59:43,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:43,572 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:43,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:43,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:43,777 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 126 more)] === [2023-11-19 07:59:43,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:43,777 INFO L85 PathProgramCache]: Analyzing trace with hash -919867318, now seen corresponding path program 1 times [2023-11-19 07:59:43,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:43,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990384889] [2023-11-19 07:59:43,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:43,778 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 [2023-11-19 07:59:43,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:43,779 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:43,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:44,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:44,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:44,354 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-19 07:59:44,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-11-19 07:59:44,391 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 07:59:44,391 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:44,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:44,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990384889] [2023-11-19 07:59:44,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990384889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:44,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:44,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:44,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798023008] [2023-11-19 07:59:44,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:44,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:44,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:44,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:44,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:44,394 INFO L87 Difference]: Start difference. First operand 421 states and 515 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 07:59:46,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:46,282 INFO L93 Difference]: Finished difference Result 496 states and 551 transitions. [2023-11-19 07:59:46,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:46,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 55 [2023-11-19 07:59:46,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:46,287 INFO L225 Difference]: With dead ends: 496 [2023-11-19 07:59:46,287 INFO L226 Difference]: Without dead ends: 496 [2023-11-19 07:59:46,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:46,288 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 263 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:46,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 425 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 07:59:46,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-11-19 07:59:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 416. [2023-11-19 07:59:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 284 states have (on average 1.7183098591549295) internal successors, (488), 400 states have internal predecessors, (488), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:59:46,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 510 transitions. [2023-11-19 07:59:46,304 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 510 transitions. Word has length 55 [2023-11-19 07:59:46,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:46,305 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 510 transitions. [2023-11-19 07:59:46,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 07:59:46,305 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 510 transitions. [2023-11-19 07:59:46,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:59:46,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:46,307 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:46,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:46,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:46,519 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 126 more)] === [2023-11-19 07:59:46,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:46,519 INFO L85 PathProgramCache]: Analyzing trace with hash -919867317, now seen corresponding path program 1 times [2023-11-19 07:59:46,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:46,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078832281] [2023-11-19 07:59:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:46,520 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 [2023-11-19 07:59:46,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:46,521 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:46,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:47,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:59:47,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:47,223 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-19 07:59:47,223 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 [2023-11-19 07:59:47,330 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 07:59:47,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:47,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:47,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078832281] [2023-11-19 07:59:47,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078832281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:47,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:47,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:59:47,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270617767] [2023-11-19 07:59:47,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:47,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:59:47,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:47,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:59:47,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:59:47,333 INFO L87 Difference]: Start difference. First operand 416 states and 510 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2023-11-19 07:59:50,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:50,336 INFO L93 Difference]: Finished difference Result 456 states and 552 transitions. [2023-11-19 07:59:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:59:50,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 55 [2023-11-19 07:59:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:50,341 INFO L225 Difference]: With dead ends: 456 [2023-11-19 07:59:50,341 INFO L226 Difference]: Without dead ends: 456 [2023-11-19 07:59:50,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:59:50,342 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 339 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:50,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1188 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-19 07:59:50,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-19 07:59:50,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 434. [2023-11-19 07:59:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 303 states have (on average 1.7128712871287128) internal successors, (519), 418 states have internal predecessors, (519), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:59:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 541 transitions. [2023-11-19 07:59:50,357 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 541 transitions. Word has length 55 [2023-11-19 07:59:50,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:50,357 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 541 transitions. [2023-11-19 07:59:50,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2023-11-19 07:59:50,358 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 541 transitions. [2023-11-19 07:59:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:59:50,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:50,359 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:50,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:50,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:50,570 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 126 more)] === [2023-11-19 07:59:50,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:50,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1875885059, now seen corresponding path program 1 times [2023-11-19 07:59:50,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:50,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665447713] [2023-11-19 07:59:50,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:50,572 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 [2023-11-19 07:59:50,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:50,573 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:59:50,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:59:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:51,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:59:51,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:51,339 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-19 07:59:51,340 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 [2023-11-19 07:59:51,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:59:51,961 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-19 07:59:51,962 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 29 treesize of output 31 [2023-11-19 07:59:52,005 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 07:59:52,005 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 [2023-11-19 07:59:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 07:59:52,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:52,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:52,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665447713] [2023-11-19 07:59:52,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665447713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:52,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:52,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:59:52,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667488864] [2023-11-19 07:59:52,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:52,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:59:52,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:52,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:59:52,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:59:52,239 INFO L87 Difference]: Start difference. First operand 434 states and 541 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2023-11-19 08:00:00,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:00,418 INFO L93 Difference]: Finished difference Result 559 states and 615 transitions. [2023-11-19 08:00:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:00:00,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 58 [2023-11-19 08:00:00,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:00,422 INFO L225 Difference]: With dead ends: 559 [2023-11-19 08:00:00,423 INFO L226 Difference]: Without dead ends: 559 [2023-11-19 08:00:00,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:00:00,424 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1059 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:00,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 1054 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-19 08:00:00,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-19 08:00:00,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 460. [2023-11-19 08:00:00,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 329 states have (on average 1.6990881458966565) internal successors, (559), 444 states have internal predecessors, (559), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:00:00,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 581 transitions. [2023-11-19 08:00:00,440 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 581 transitions. Word has length 58 [2023-11-19 08:00:00,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:00,441 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 581 transitions. [2023-11-19 08:00:00,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2023-11-19 08:00:00,441 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 581 transitions. [2023-11-19 08:00:00,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 08:00:00,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:00,448 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:00,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:00,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:00:00,660 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 126 more)] === [2023-11-19 08:00:00,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:00,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1622681784, now seen corresponding path program 1 times [2023-11-19 08:00:00,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:00,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174711739] [2023-11-19 08:00:00,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:00,661 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 [2023-11-19 08:00:00,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:00,663 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 08:00:00,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b37754e-97ed-43b6-8403-b8878c5cdaa0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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