./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/tee-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_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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_7f741481-7ada-4082-b55c-086866074df2/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 bab52eb5923c15e4bc9c70f58b3e07f531d9c2f4fa12be32117f6f5f5ee2181e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:01,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:01,876 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-19 08:00:01,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:01,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:01,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:01,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:01,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:01,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:00:01,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:00:01,946 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:01,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:01,947 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:01,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:01,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:00:01,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:01,951 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:00:01,951 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:00:01,952 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:00:01,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:00:01,953 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:00:01,954 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:00:01,954 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:01,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:01,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:01,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:00:01,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:01,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:01,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:00:01,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:00:01,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:00:01,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:00:01,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:00:01,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:00:01,981 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:00:01,982 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_7f741481-7ada-4082-b55c-086866074df2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bab52eb5923c15e4bc9c70f58b3e07f531d9c2f4fa12be32117f6f5f5ee2181e [2023-11-19 08:00:02,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:02,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:02,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:02,393 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:02,393 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:02,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-11-19 08:00:05,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:06,380 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:06,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-11-19 08:00:06,421 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/data/a548af74c/fc1914606aa848dca311b5b58109f377/FLAG8251b5915 [2023-11-19 08:00:06,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/data/a548af74c/fc1914606aa848dca311b5b58109f377 [2023-11-19 08:00:06,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:06,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:06,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:06,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:06,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:06,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:06,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7668e26b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06, skipping insertion in model container [2023-11-19 08:00:06,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:06,557 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:08,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:08,132 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 08:00:08,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d0ec8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08, skipping insertion in model container [2023-11-19 08:00:08,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:08,134 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 08:00:08,136 INFO L158 Benchmark]: Toolchain (without parser) took 1685.94ms. Allocated memory is still 157.3MB. Free memory was 113.5MB in the beginning and 76.4MB in the end (delta: 37.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 08:00:08,143 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 157.3MB. Free memory was 126.6MB in the beginning and 126.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:00:08,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1682.78ms. Allocated memory is still 157.3MB. Free memory was 113.0MB in the beginning and 76.8MB in the end (delta: 36.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 08:00:08,146 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 157.3MB. Free memory was 126.6MB in the beginning and 126.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1682.78ms. Allocated memory is still 157.3MB. Free memory was 113.0MB in the beginning and 76.8MB in the end (delta: 36.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2217]: 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_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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_7f741481-7ada-4082-b55c-086866074df2/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 bab52eb5923c15e4bc9c70f58b3e07f531d9c2f4fa12be32117f6f5f5ee2181e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:10,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:11,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-19 08:00:11,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:11,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:11,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:11,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:11,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:11,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:00:11,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:00:11,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:11,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:11,086 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:11,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:11,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:00:11,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:11,089 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:00:11,090 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:00:11,090 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:00:11,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:00:11,092 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:00:11,093 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:00:11,093 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:00:11,094 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:00:11,094 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:11,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:11,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:11,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:00:11,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:11,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:11,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:00:11,100 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:00:11,100 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:00:11,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:00:11,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:00:11,101 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:00:11,102 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:00:11,102 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:00:11,103 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_7f741481-7ada-4082-b55c-086866074df2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bab52eb5923c15e4bc9c70f58b3e07f531d9c2f4fa12be32117f6f5f5ee2181e [2023-11-19 08:00:11,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:11,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:11,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:11,595 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:11,596 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:11,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-11-19 08:00:14,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:15,313 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:15,313 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-11-19 08:00:15,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/data/5e00a0f5e/0c0781d5d7044e16b5518361905d3e62/FLAGd4adeab3f [2023-11-19 08:00:15,378 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/data/5e00a0f5e/0c0781d5d7044e16b5518361905d3e62 [2023-11-19 08:00:15,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:15,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:15,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:15,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:15,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:15,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:15" (1/1) ... [2023-11-19 08:00:15,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b12eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:15, skipping insertion in model container [2023-11-19 08:00:15,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:15" (1/1) ... [2023-11-19 08:00:15,509 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:16,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:16,976 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 08:00:17,004 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:17,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:17,209 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:17,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:17,555 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:17,555 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:17,555 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:17,555 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:17,556 WARN L675 CHandler]: The function setbuf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:17,557 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:17,562 WARN L675 CHandler]: The function fwrite is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:17,570 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:17,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17 WrapperNode [2023-11-19 08:00:17,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:17,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:17,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:17,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:17,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:17,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:17,850 INFO L138 Inliner]: procedures = 589, calls = 420, calls flagged for inlining = 28, calls inlined = 26, statements flattened = 1522 [2023-11-19 08:00:17,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:17,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:17,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:17,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:17,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:17,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:17,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:17,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:17,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:18,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:18,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:18,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:18,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:18,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:18,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:18,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:18,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (1/1) ... [2023-11-19 08:00:18,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:18,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:18,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:18,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 08:00:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:00:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:00:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 08:00:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2023-11-19 08:00:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2023-11-19 08:00:18,175 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2023-11-19 08:00:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-19 08:00:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-19 08:00:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:00:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 08:00:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:00:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-19 08:00:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-19 08:00:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-19 08:00:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-19 08:00:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 08:00:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 08:00:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 08:00:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-19 08:00:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-19 08:00:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 08:00:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 08:00:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 08:00:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 08:00:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 08:00:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 08:00:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:00:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:00:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:00:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:00:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-19 08:00:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 08:00:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 08:00:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 08:00:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:00:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 08:00:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-19 08:00:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 08:00:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-19 08:00:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-19 08:00:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 08:00:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 08:00:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2023-11-19 08:00:18,774 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:18,776 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:18,973 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 08:00:30,811 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:30,839 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:30,840 INFO L302 CfgBuilder]: Removed 30 assume(true) statements. [2023-11-19 08:00:30,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:30 BoogieIcfgContainer [2023-11-19 08:00:30,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:30,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:30,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:30,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:30,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:15" (1/3) ... [2023-11-19 08:00:30,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b58a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:30, skipping insertion in model container [2023-11-19 08:00:30,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:17" (2/3) ... [2023-11-19 08:00:30,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b58a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:30, skipping insertion in model container [2023-11-19 08:00:30,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:30" (3/3) ... [2023-11-19 08:00:30,876 INFO L112 eAbstractionObserver]: Analyzing ICFG tee-2.i [2023-11-19 08:00:30,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:30,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 467 error locations. [2023-11-19 08:00:30,995 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:31,010 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;@668fc53d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:31,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 467 error locations. [2023-11-19 08:00:31,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 1121 states, 624 states have (on average 2.02724358974359) internal successors, (1265), 1088 states have internal predecessors, (1265), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 08:00:31,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 08:00:31,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:31,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 08:00:31,035 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 464 more)] === [2023-11-19 08:00:31,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:31,045 INFO L85 PathProgramCache]: Analyzing trace with hash 436987, now seen corresponding path program 1 times [2023-11-19 08:00:31,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:31,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314468922] [2023-11-19 08:00:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:31,065 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 08:00:31,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:31,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:31,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:31,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:00:31,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:31,587 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 08:00:31,621 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 08:00:31,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:31,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:31,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314468922] [2023-11-19 08:00:31,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314468922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:31,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:31,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:31,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090411602] [2023-11-19 08:00:31,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:31,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:31,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:31,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:31,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:31,672 INFO L87 Difference]: Start difference. First operand has 1121 states, 624 states have (on average 2.02724358974359) internal successors, (1265), 1088 states have internal predecessors, (1265), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) 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 08:00:36,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:36,398 INFO L93 Difference]: Finished difference Result 1279 states and 1461 transitions. [2023-11-19 08:00:36,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:36,402 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 08:00:36,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:36,441 INFO L225 Difference]: With dead ends: 1279 [2023-11-19 08:00:36,442 INFO L226 Difference]: Without dead ends: 1277 [2023-11-19 08:00:36,444 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 08:00:36,450 INFO L413 NwaCegarLoop]: 1093 mSDtfsCounter, 407 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:36,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1738 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-19 08:00:36,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2023-11-19 08:00:36,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1107. [2023-11-19 08:00:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 617 states have (on average 1.9659643435980552) internal successors, (1213), 1079 states have internal predecessors, (1213), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 08:00:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1258 transitions. [2023-11-19 08:00:36,590 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1258 transitions. Word has length 3 [2023-11-19 08:00:36,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:36,591 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 1258 transitions. [2023-11-19 08:00:36,591 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 08:00:36,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1258 transitions. [2023-11-19 08:00:36,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 08:00:36,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:36,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 08:00:36,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:36,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:36,799 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 464 more)] === [2023-11-19 08:00:36,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash 436988, now seen corresponding path program 1 times [2023-11-19 08:00:36,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:36,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515584477] [2023-11-19 08:00:36,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:36,805 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 08:00:36,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:36,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:36,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:00:37,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:37,172 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 08:00:37,206 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 08:00:37,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:37,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:37,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515584477] [2023-11-19 08:00:37,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515584477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:37,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:37,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:37,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206058568] [2023-11-19 08:00:37,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:37,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:37,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:37,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:37,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:37,210 INFO L87 Difference]: Start difference. First operand 1107 states and 1258 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 08:00:42,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:42,922 INFO L93 Difference]: Finished difference Result 1106 states and 1257 transitions. [2023-11-19 08:00:42,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:42,923 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 08:00:42,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:42,930 INFO L225 Difference]: With dead ends: 1106 [2023-11-19 08:00:42,930 INFO L226 Difference]: Without dead ends: 1106 [2023-11-19 08:00:42,930 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 08:00:42,932 INFO L413 NwaCegarLoop]: 1250 mSDtfsCounter, 13 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:42,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2034 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-19 08:00:42,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2023-11-19 08:00:42,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1106. [2023-11-19 08:00:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 617 states have (on average 1.9643435980551054) internal successors, (1212), 1078 states have internal predecessors, (1212), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 08:00:42,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1257 transitions. [2023-11-19 08:00:42,966 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1257 transitions. Word has length 3 [2023-11-19 08:00:42,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:42,966 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1257 transitions. [2023-11-19 08:00:42,967 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 08:00:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1257 transitions. [2023-11-19 08:00:42,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 08:00:42,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:42,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:00:42,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:43,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:43,174 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 464 more)] === [2023-11-19 08:00:43,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:43,175 INFO L85 PathProgramCache]: Analyzing trace with hash 133761385, now seen corresponding path program 1 times [2023-11-19 08:00:43,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:43,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363011471] [2023-11-19 08:00:43,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:43,177 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 08:00:43,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:43,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:43,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:43,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:00:43,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:43,547 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 08:00:43,694 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 08:00:43,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:43,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:43,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363011471] [2023-11-19 08:00:43,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363011471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:43,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:43,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:43,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972855401] [2023-11-19 08:00:43,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:43,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:00:43,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:43,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:00:43,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:00:43,697 INFO L87 Difference]: Start difference. First operand 1106 states and 1257 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 08:00:52,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:52,759 INFO L93 Difference]: Finished difference Result 1110 states and 1261 transitions. [2023-11-19 08:00:52,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:00:52,760 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 08:00:52,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:52,767 INFO L225 Difference]: With dead ends: 1110 [2023-11-19 08:00:52,768 INFO L226 Difference]: Without dead ends: 1110 [2023-11-19 08:00:52,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:00:52,769 INFO L413 NwaCegarLoop]: 1248 mSDtfsCounter, 14 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:52,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2819 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2023-11-19 08:00:52,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2023-11-19 08:00:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1108. [2023-11-19 08:00:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 619 states have (on average 1.9612277867528272) internal successors, (1214), 1080 states have internal predecessors, (1214), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 08:00:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1259 transitions. [2023-11-19 08:00:52,806 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1259 transitions. Word has length 6 [2023-11-19 08:00:52,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:52,807 INFO L495 AbstractCegarLoop]: Abstraction has 1108 states and 1259 transitions. [2023-11-19 08:00:52,807 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 08:00:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1259 transitions. [2023-11-19 08:00:52,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 08:00:52,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:52,808 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:52,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:53,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:53,016 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 464 more)] === [2023-11-19 08:00:53,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:53,016 INFO L85 PathProgramCache]: Analyzing trace with hash -390000660, now seen corresponding path program 1 times [2023-11-19 08:00:53,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:53,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233960595] [2023-11-19 08:00:53,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:53,018 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 08:00:53,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:53,019 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:53,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f741481-7ada-4082-b55c-086866074df2/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 08:00:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:53,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:00:53,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:53,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 08:00:53,804 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 08:00:53,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:00:54,781 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 08:00:54,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:54,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233960595] [2023-11-19 08:00:54,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233960595] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:00:54,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:00:54,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 08:00:54,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344778732] [2023-11-19 08:00:54,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:00:54,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:00:54,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:54,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:00:54,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:00:54,784 INFO L87 Difference]: Start difference. First operand 1108 states and 1259 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)