./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/tac-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tac-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 57f38269c4c960187df192acac7fb1cf78f174b0bc0258d373a3e5b5132a13eb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:05,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:05,220 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-19 07:43:05,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:05,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:05,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:05,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:05,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:05,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:05,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:05,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:05,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:05,261 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:05,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:05,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:05,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:05,264 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:43:05,265 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:43:05,266 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:43:05,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:05,267 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:43:05,268 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:05,269 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:05,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:05,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:05,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:05,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:05,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:05,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:05,274 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:43:05,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:43:05,275 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:05,275 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:05,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:05,276 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:05,277 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_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57f38269c4c960187df192acac7fb1cf78f174b0bc0258d373a3e5b5132a13eb [2023-11-19 07:43:05,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:05,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:05,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:05,637 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:05,638 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:05,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/tac-1.i [2023-11-19 07:43:08,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:09,328 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:09,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/sv-benchmarks/c/busybox-1.22.0/tac-1.i [2023-11-19 07:43:09,373 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/data/3234f53bf/c5e8253a79e440618910e44fbff9697f/FLAGcc27be313 [2023-11-19 07:43:09,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/data/3234f53bf/c5e8253a79e440618910e44fbff9697f [2023-11-19 07:43:09,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:09,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:09,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:09,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:09,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:09,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:09" (1/1) ... [2023-11-19 07:43:09,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efbb4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:09, skipping insertion in model container [2023-11-19 07:43:09,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:09" (1/1) ... [2023-11-19 07:43:09,500 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:11,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:11,271 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 07:43:11,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@b7659f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11, skipping insertion in model container [2023-11-19 07:43:11,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:11,272 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:43:11,275 INFO L158 Benchmark]: Toolchain (without parser) took 1873.21ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 76.0MB in the beginning and 106.7MB in the end (delta: -30.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-11-19 07:43:11,276 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:11,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1868.60ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 76.0MB in the beginning and 106.7MB in the end (delta: -30.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-11-19 07:43:11,279 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1868.60ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 76.0MB in the beginning and 106.7MB in the end (delta: -30.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tac-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 57f38269c4c960187df192acac7fb1cf78f174b0bc0258d373a3e5b5132a13eb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:13,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:14,136 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-19 07:43:14,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:14,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:14,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:14,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:14,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:14,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:14,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:14,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:14,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:14,205 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:14,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:14,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:14,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:14,208 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:43:14,209 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:43:14,209 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:43:14,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:14,211 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:43:14,212 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:43:14,212 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:43:14,213 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:14,213 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:14,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:14,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:14,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:14,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:14,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:14,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:14,218 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:43:14,219 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:43:14,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:14,219 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:14,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:14,220 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:43:14,220 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:14,220 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_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57f38269c4c960187df192acac7fb1cf78f174b0bc0258d373a3e5b5132a13eb [2023-11-19 07:43:14,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:14,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:14,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:14,659 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:14,660 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:14,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/tac-1.i [2023-11-19 07:43:17,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:18,428 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:18,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/sv-benchmarks/c/busybox-1.22.0/tac-1.i [2023-11-19 07:43:18,467 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/data/6b3c41c5e/c70b36b6e89141098e604ccb8246cf7a/FLAGa1f8fd247 [2023-11-19 07:43:18,481 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/data/6b3c41c5e/c70b36b6e89141098e604ccb8246cf7a [2023-11-19 07:43:18,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:18,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:18,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:18,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:18,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:18,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:18" (1/1) ... [2023-11-19 07:43:18,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88420a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:18, skipping insertion in model container [2023-11-19 07:43:18,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:18" (1/1) ... [2023-11-19 07:43:18,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:19,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:19,991 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:43:20,026 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:20,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:20,216 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:20,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:20,656 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:20,657 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:20,657 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:20,657 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:20,657 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:20,666 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:20,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20 WrapperNode [2023-11-19 07:43:20,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:20,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:20,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:20,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:20,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:20,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:20,906 INFO L138 Inliner]: procedures = 589, calls = 409, calls flagged for inlining = 26, calls inlined = 25, statements flattened = 1492 [2023-11-19 07:43:20,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:20,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:20,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:20,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:20,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:20,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:20,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:20,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:21,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:21,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:21,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:21,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:21,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:21,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:21,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:21,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:21,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (1/1) ... [2023-11-19 07:43:21,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:21,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:21,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:21,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-19 07:43:21,222 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-19 07:43:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-19 07:43:21,223 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-19 07:43:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 07:43:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:43:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:43:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:43:21,224 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-19 07:43:21,225 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-19 07:43:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-19 07:43:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:43:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 07:43:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:21,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:43:21,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-19 07:43:21,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-19 07:43:21,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-19 07:43:21,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-19 07:43:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:21,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:43:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:43:21,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:43:21,229 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-19 07:43:21,230 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-19 07:43:21,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:43:21,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:43:21,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:43:21,231 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2023-11-19 07:43:21,231 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2023-11-19 07:43:21,231 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 07:43:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:43:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:43:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:43:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:43:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:43:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:43:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 07:43:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 07:43:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:43:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:43:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 07:43:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-19 07:43:21,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 07:43:21,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-19 07:43:21,234 INFO L130 BoogieDeclarations]: Found specification of procedure full_write [2023-11-19 07:43:21,234 INFO L138 BoogieDeclarations]: Found implementation of procedure full_write [2023-11-19 07:43:21,234 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-19 07:43:21,235 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 07:43:21,235 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 07:43:21,770 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:21,773 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:21,978 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:43:34,878 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:34,911 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:34,912 INFO L302 CfgBuilder]: Removed 30 assume(true) statements. [2023-11-19 07:43:34,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:34 BoogieIcfgContainer [2023-11-19 07:43:34,930 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:34,933 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:34,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:34,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:34,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:18" (1/3) ... [2023-11-19 07:43:34,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e89945c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:34, skipping insertion in model container [2023-11-19 07:43:34,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:20" (2/3) ... [2023-11-19 07:43:34,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e89945c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:34, skipping insertion in model container [2023-11-19 07:43:34,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:34" (3/3) ... [2023-11-19 07:43:34,946 INFO L112 eAbstractionObserver]: Analyzing ICFG tac-1.i [2023-11-19 07:43:34,970 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:34,970 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 467 error locations. [2023-11-19 07:43:35,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:35,088 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;@3aa03103, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:35,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 467 error locations. [2023-11-19 07:43:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 1145 states, 639 states have (on average 2.0156494522691704) internal successors, (1288), 1104 states have internal predecessors, (1288), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 07:43:35,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:43:35,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:35,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:43:35,116 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 07:43:35,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash 473728, now seen corresponding path program 1 times [2023-11-19 07:43:35,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:35,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994974405] [2023-11-19 07:43:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:35,147 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 07:43:35,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:35,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:35,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:35,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:35,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:35,771 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 07:43:35,806 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 07:43:35,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:35,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:35,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994974405] [2023-11-19 07:43:35,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994974405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:35,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:35,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:35,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428757052] [2023-11-19 07:43:35,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:35,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:35,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:35,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:35,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:35,876 INFO L87 Difference]: Start difference. First operand has 1145 states, 639 states have (on average 2.0156494522691704) internal successors, (1288), 1104 states have internal predecessors, (1288), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) 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 07:43:40,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:40,927 INFO L93 Difference]: Finished difference Result 1302 states and 1495 transitions. [2023-11-19 07:43:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:40,930 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 07:43:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:40,956 INFO L225 Difference]: With dead ends: 1302 [2023-11-19 07:43:40,957 INFO L226 Difference]: Without dead ends: 1300 [2023-11-19 07:43:40,959 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 07:43:40,965 INFO L413 NwaCegarLoop]: 1127 mSDtfsCounter, 407 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:40,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1804 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-19 07:43:40,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2023-11-19 07:43:41,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1130. [2023-11-19 07:43:41,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 631 states have (on average 1.9587955625990492) internal successors, (1236), 1095 states have internal predecessors, (1236), 31 states have call successors, (31), 10 states have call predecessors, (31), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:43:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1292 transitions. [2023-11-19 07:43:41,116 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1292 transitions. Word has length 3 [2023-11-19 07:43:41,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:41,117 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 1292 transitions. [2023-11-19 07:43:41,117 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 07:43:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1292 transitions. [2023-11-19 07:43:41,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:43:41,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:41,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:43:41,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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)] Ended with exit code 0 [2023-11-19 07:43:41,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:41,325 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 07:43:41,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash 473729, now seen corresponding path program 1 times [2023-11-19 07:43:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:41,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875747994] [2023-11-19 07:43:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:41,332 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 07:43:41,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:41,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:41,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:41,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:41,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:41,760 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 07:43:41,814 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 07:43:41,814 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:41,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:41,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875747994] [2023-11-19 07:43:41,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875747994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:41,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:41,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:41,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442668297] [2023-11-19 07:43:41,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:41,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:41,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:41,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:41,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:41,818 INFO L87 Difference]: Start difference. First operand 1130 states and 1292 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 07:43:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:48,669 INFO L93 Difference]: Finished difference Result 1129 states and 1291 transitions. [2023-11-19 07:43:48,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:48,670 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 07:43:48,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:48,679 INFO L225 Difference]: With dead ends: 1129 [2023-11-19 07:43:48,680 INFO L226 Difference]: Without dead ends: 1129 [2023-11-19 07:43:48,680 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 07:43:48,682 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 13 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:48,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2101 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-19 07:43:48,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2023-11-19 07:43:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2023-11-19 07:43:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 631 states have (on average 1.9572107765451665) internal successors, (1235), 1094 states have internal predecessors, (1235), 31 states have call successors, (31), 10 states have call predecessors, (31), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:43:48,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1291 transitions. [2023-11-19 07:43:48,729 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1291 transitions. Word has length 3 [2023-11-19 07:43:48,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:48,729 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1291 transitions. [2023-11-19 07:43:48,730 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 07:43:48,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1291 transitions. [2023-11-19 07:43:48,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:43:48,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:48,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:43:48,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:48,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:48,939 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 07:43:48,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:48,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1228349257, now seen corresponding path program 1 times [2023-11-19 07:43:48,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:48,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85056092] [2023-11-19 07:43:48,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:48,942 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 07:43:48,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:48,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:48,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:49,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:49,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:49,398 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 07:43:49,587 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 07:43:49,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:49,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:49,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85056092] [2023-11-19 07:43:49,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85056092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:49,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:49,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:49,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118150655] [2023-11-19 07:43:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:49,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:49,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:49,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:49,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:49,591 INFO L87 Difference]: Start difference. First operand 1129 states and 1291 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 07:43:59,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:59,476 INFO L93 Difference]: Finished difference Result 1133 states and 1295 transitions. [2023-11-19 07:43:59,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:59,478 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 07:43:59,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:59,486 INFO L225 Difference]: With dead ends: 1133 [2023-11-19 07:43:59,486 INFO L226 Difference]: Without dead ends: 1133 [2023-11-19 07:43:59,487 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 07:43:59,488 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 14 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:59,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2919 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-11-19 07:43:59,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2023-11-19 07:43:59,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1131. [2023-11-19 07:43:59,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 633 states have (on average 1.9541864139020537) internal successors, (1237), 1096 states have internal predecessors, (1237), 31 states have call successors, (31), 10 states have call predecessors, (31), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:43:59,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1293 transitions. [2023-11-19 07:43:59,531 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1293 transitions. Word has length 6 [2023-11-19 07:43:59,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:59,531 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 1293 transitions. [2023-11-19 07:43:59,531 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 07:43:59,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1293 transitions. [2023-11-19 07:43:59,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:43:59,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:59,533 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:59,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:59,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:59,738 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 07:43:59,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:59,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1890412788, now seen corresponding path program 1 times [2023-11-19 07:43:59,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:59,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956237355] [2023-11-19 07:43:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:59,741 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 07:43:59,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:59,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:43:59,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ad0f4e-6bae-4ba9-95f7-c961a8d65be6/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 07:44:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:00,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:44:00,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:00,166 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