./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 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_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/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_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/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_1cb21fb4-814f-492f-bedf-0899c13c0277/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 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:49,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:49,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-19 07:58:49,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:49,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:49,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:49,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:49,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:49,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:49,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:49,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:49,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:49,388 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:49,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:49,391 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:49,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:49,392 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:58:49,392 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:58:49,393 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:58:49,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:49,394 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:58:49,395 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:58:49,396 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:49,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:49,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:49,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:49,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:49,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:49,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:49,400 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:49,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:49,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:49,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:49,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:49,404 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:49,404 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_1cb21fb4-814f-492f-bedf-0899c13c0277/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 [2023-11-19 07:58:49,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:49,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:49,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:49,804 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:49,804 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:49,806 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-19 07:58:53,030 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:53,495 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:53,496 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-19 07:58:53,522 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/data/8bf3222c5/518b6c25302d410e967196c6bd240dc3/FLAGf0cd9ce5f [2023-11-19 07:58:53,539 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/data/8bf3222c5/518b6c25302d410e967196c6bd240dc3 [2023-11-19 07:58:53,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:53,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:53,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:53,550 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:53,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:53,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:53" (1/1) ... [2023-11-19 07:58:53,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c742c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:53, skipping insertion in model container [2023-11-19 07:58:53,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:53" (1/1) ... [2023-11-19 07:58:53,658 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:55,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:55,074 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 07:58:55,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e54b9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55, skipping insertion in model container [2023-11-19 07:58:55,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:55,075 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:58:55,077 INFO L158 Benchmark]: Toolchain (without parser) took 1530.18ms. Allocated memory is still 138.4MB. Free memory was 91.7MB in the beginning and 89.3MB in the end (delta: 2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:58:55,078 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:55,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1525.39ms. Allocated memory is still 138.4MB. Free memory was 91.7MB in the beginning and 89.3MB in the end (delta: 2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:58:55,081 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 109.1MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1525.39ms. Allocated memory is still 138.4MB. Free memory was 91.7MB in the beginning and 89.3MB in the end (delta: 2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2471]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/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_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/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_1cb21fb4-814f-492f-bedf-0899c13c0277/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 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:57,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:57,973 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-19 07:58:57,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:57,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:58,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:58,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:58,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:58,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:58,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:58,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:58,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:58,045 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:58,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:58,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:58,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:58,049 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:58:58,049 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:58:58,049 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:58:58,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:58,051 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:58:58,052 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:58:58,052 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:58:58,053 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:58:58,053 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:58,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:58,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:58,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:58,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:58,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:58,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:58,058 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:58:58,058 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:58:58,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:58,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:58,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:58,060 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:58:58,060 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:58,060 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_1cb21fb4-814f-492f-bedf-0899c13c0277/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49726dba769f8fa38c0387ce1a7d732542975ac5562ef4991c0ad7532e1b95e5 [2023-11-19 07:58:58,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:58,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:58,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:58,657 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:58,658 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:58,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-19 07:59:02,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:02,627 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:02,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/sv-benchmarks/c/busybox-1.22.0/sleep-3.i [2023-11-19 07:59:02,675 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/data/ea9208aa7/7aa8d4f1a8f84c91a32e08217bd46a1f/FLAG85a8f6ddd [2023-11-19 07:59:02,691 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/data/ea9208aa7/7aa8d4f1a8f84c91a32e08217bd46a1f [2023-11-19 07:59:02,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:02,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:02,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:02,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:02,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:02,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c3ec0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02, skipping insertion in model container [2023-11-19 07:59:02,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:02" (1/1) ... [2023-11-19 07:59:02,815 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:04,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:04,555 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:59:04,592 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:04,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:04,733 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:04,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:05,189 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:59:05,189 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:59:05,189 WARN L675 CHandler]: The function strspn is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:59:05,198 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:05,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05 WrapperNode [2023-11-19 07:59:05,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:05,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:05,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:05,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:05,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,406 INFO L138 Inliner]: procedures = 647, calls = 241, calls flagged for inlining = 17, calls inlined = 15, statements flattened = 751 [2023-11-19 07:59:05,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:05,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:05,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:05,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:05,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:05,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:05,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:05,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:05,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (1/1) ... [2023-11-19 07:59:05,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:05,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:05,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:05,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:59:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:59:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:59:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2023-11-19 07:59:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2023-11-19 07:59:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:59:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 07:59:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:59:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-19 07:59:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-19 07:59:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-19 07:59:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-19 07:59:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:59:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:59:05,648 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:59:05,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-19 07:59:05,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:59:05,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:59:05,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:59:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:59:05,650 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:59:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:59:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:59:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 07:59:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 07:59:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:59:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-19 07:59:05,653 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-19 07:59:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2023-11-19 07:59:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-19 07:59:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 07:59:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-19 07:59:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 07:59:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-19 07:59:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 07:59:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 07:59:06,127 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:06,131 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:59:13,755 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:59:13,768 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:59:13,769 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-19 07:59:13,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:13 BoogieIcfgContainer [2023-11-19 07:59:13,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:59:13,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:59:13,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:59:13,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:59:13,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:02" (1/3) ... [2023-11-19 07:59:13,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ef3797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:13, skipping insertion in model container [2023-11-19 07:59:13,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:05" (2/3) ... [2023-11-19 07:59:13,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ef3797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:13, skipping insertion in model container [2023-11-19 07:59:13,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:13" (3/3) ... [2023-11-19 07:59:13,785 INFO L112 eAbstractionObserver]: Analyzing ICFG sleep-3.i [2023-11-19 07:59:13,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:59:13,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 233 error locations. [2023-11-19 07:59:13,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:59:13,887 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;@77a01197, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:59:13,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 233 error locations. [2023-11-19 07:59:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 562 states, 307 states have (on average 1.9739413680781759) internal successors, (606), 542 states have internal predecessors, (606), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:59:13,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:59:13,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:13,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:59:13,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-19 07:59:13,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:13,906 INFO L85 PathProgramCache]: Analyzing trace with hash 406205, now seen corresponding path program 1 times [2023-11-19 07:59:13,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:13,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700843669] [2023-11-19 07:59:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:13,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:13,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:13,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:13,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:59:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:14,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:59:14,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:14,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:59:14,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:14,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:14,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:14,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700843669] [2023-11-19 07:59:14,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700843669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:14,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:14,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:14,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140688865] [2023-11-19 07:59:14,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:14,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:14,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:14,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:14,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:14,377 INFO L87 Difference]: Start difference. First operand has 562 states, 307 states have (on average 1.9739413680781759) internal successors, (606), 542 states have internal predecessors, (606), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:17,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:17,767 INFO L93 Difference]: Finished difference Result 554 states and 612 transitions. [2023-11-19 07:59:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:17,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-19 07:59:17,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:17,784 INFO L225 Difference]: With dead ends: 554 [2023-11-19 07:59:17,784 INFO L226 Difference]: Without dead ends: 549 [2023-11-19 07:59:17,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:17,790 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 15 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:17,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 970 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-19 07:59:17,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-19 07:59:17,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2023-11-19 07:59:17,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 301 states have (on average 1.9269102990033222) internal successors, (580), 532 states have internal predecessors, (580), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:59:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 606 transitions. [2023-11-19 07:59:17,872 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 606 transitions. Word has length 3 [2023-11-19 07:59:17,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:17,872 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 606 transitions. [2023-11-19 07:59:17,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 606 transitions. [2023-11-19 07:59:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:59:17,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:17,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:59:17,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/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 07:59:18,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:18,074 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-19 07:59:18,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:18,075 INFO L85 PathProgramCache]: Analyzing trace with hash 406204, now seen corresponding path program 1 times [2023-11-19 07:59:18,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:18,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934271915] [2023-11-19 07:59:18,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:18,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:18,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:18,079 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:18,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:59:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:18,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:59:18,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:18,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:59:18,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:18,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:18,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:18,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934271915] [2023-11-19 07:59:18,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934271915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:18,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:18,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:18,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74035916] [2023-11-19 07:59:18,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:18,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:18,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:18,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:18,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:18,383 INFO L87 Difference]: Start difference. First operand 549 states and 606 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:20,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:20,905 INFO L93 Difference]: Finished difference Result 600 states and 662 transitions. [2023-11-19 07:59:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:20,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-19 07:59:20,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:20,916 INFO L225 Difference]: With dead ends: 600 [2023-11-19 07:59:20,916 INFO L226 Difference]: Without dead ends: 600 [2023-11-19 07:59:20,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:20,918 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 107 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:20,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 874 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 07:59:20,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2023-11-19 07:59:20,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 547. [2023-11-19 07:59:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 301 states have (on average 1.920265780730897) internal successors, (578), 530 states have internal predecessors, (578), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:59:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 604 transitions. [2023-11-19 07:59:20,951 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 604 transitions. Word has length 3 [2023-11-19 07:59:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:20,952 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 604 transitions. [2023-11-19 07:59:20,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 604 transitions. [2023-11-19 07:59:20,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:59:20,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:20,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:59:20,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/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 07:59:21,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:21,158 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-19 07:59:21,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:21,159 INFO L85 PathProgramCache]: Analyzing trace with hash -783325751, now seen corresponding path program 1 times [2023-11-19 07:59:21,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:21,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203903199] [2023-11-19 07:59:21,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:21,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:21,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:21,163 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:21,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:59:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:21,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:59:21,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:21,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:59:21,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:21,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:21,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:21,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203903199] [2023-11-19 07:59:21,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203903199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:21,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:21,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:21,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442249904] [2023-11-19 07:59:21,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:21,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:59:21,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:21,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:59:21,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:59:21,629 INFO L87 Difference]: Start difference. First operand 547 states and 604 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:24,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:24,736 INFO L93 Difference]: Finished difference Result 551 states and 608 transitions. [2023-11-19 07:59:24,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:59:24,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 07:59:24,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:24,742 INFO L225 Difference]: With dead ends: 551 [2023-11-19 07:59:24,742 INFO L226 Difference]: Without dead ends: 551 [2023-11-19 07:59:24,742 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 07:59:24,744 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 16 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:24,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 960 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-19 07:59:24,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-19 07:59:24,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2023-11-19 07:59:24,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 303 states have (on average 1.9141914191419143) internal successors, (580), 532 states have internal predecessors, (580), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:59:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 606 transitions. [2023-11-19 07:59:24,775 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 606 transitions. Word has length 6 [2023-11-19 07:59:24,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:24,776 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 606 transitions. [2023-11-19 07:59:24,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 606 transitions. [2023-11-19 07:59:24,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:59:24,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:24,777 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:24,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:24,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:24,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-19 07:59:24,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:24,980 INFO L85 PathProgramCache]: Analyzing trace with hash 751021196, now seen corresponding path program 1 times [2023-11-19 07:59:24,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:24,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320841085] [2023-11-19 07:59:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:24,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:24,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:24,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:25,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 07:59:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:25,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:59:25,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:25,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:59:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:25,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:26,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:26,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320841085] [2023-11-19 07:59:26,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320841085] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:26,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:59:26,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:59:26,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737612343] [2023-11-19 07:59:26,444 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:26,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:59:26,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:26,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:59:26,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:59:26,446 INFO L87 Difference]: Start difference. First operand 549 states and 606 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:42,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:42,302 INFO L93 Difference]: Finished difference Result 555 states and 612 transitions. [2023-11-19 07:59:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:59:42,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-19 07:59:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:42,308 INFO L225 Difference]: With dead ends: 555 [2023-11-19 07:59:42,308 INFO L226 Difference]: Without dead ends: 555 [2023-11-19 07:59:42,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:59:42,317 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 21 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:42,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2051 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2023-11-19 07:59:42,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-11-19 07:59:42,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-11-19 07:59:42,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 310 states have (on average 1.8903225806451613) internal successors, (586), 538 states have internal predecessors, (586), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:59:42,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 612 transitions. [2023-11-19 07:59:42,339 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 612 transitions. Word has length 10 [2023-11-19 07:59:42,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:42,339 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 612 transitions. [2023-11-19 07:59:42,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:42,340 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 612 transitions. [2023-11-19 07:59:42,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:59:42,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:42,341 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:42,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:42,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:42,543 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-19 07:59:42,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:42,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1218838426, now seen corresponding path program 1 times [2023-11-19 07:59:42,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:42,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973698935] [2023-11-19 07:59:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:42,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:42,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:42,546 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:42,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 07:59:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:42,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:59:42,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:43,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:59:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:43,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:43,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973698935] [2023-11-19 07:59:43,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973698935] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:59:43,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:59:43,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-19 07:59:43,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003684083] [2023-11-19 07:59:43,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:59:43,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:59:43,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:43,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:59:43,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:59:43,275 INFO L87 Difference]: Start difference. First operand 555 states and 612 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:43,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:59:43,776 INFO L93 Difference]: Finished difference Result 575 states and 632 transitions. [2023-11-19 07:59:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:59:43,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-19 07:59:43,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:59:43,784 INFO L225 Difference]: With dead ends: 575 [2023-11-19 07:59:43,784 INFO L226 Difference]: Without dead ends: 575 [2023-11-19 07:59:43,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:59:43,785 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 15 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4188 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:59:43,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4188 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:59:43,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-11-19 07:59:43,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2023-11-19 07:59:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 330 states have (on average 1.8363636363636364) internal successors, (606), 558 states have internal predecessors, (606), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:59:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 632 transitions. [2023-11-19 07:59:43,807 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 632 transitions. Word has length 19 [2023-11-19 07:59:43,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:59:43,807 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 632 transitions. [2023-11-19 07:59:43,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:59:43,808 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 632 transitions. [2023-11-19 07:59:43,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 07:59:43,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:59:43,810 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:43,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:59:44,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:44,021 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 230 more)] === [2023-11-19 07:59:44,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:44,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1702533845, now seen corresponding path program 2 times [2023-11-19 07:59:44,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:59:44,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983780564] [2023-11-19 07:59:44,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:59:44,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:59:44,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:59:44,024 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:59:44,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb21fb4-814f-492f-bedf-0899c13c0277/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 07:59:44,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:59:44,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:59:44,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:59:44,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:59:44,530 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-19 07:59:44,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2023-11-19 07:59:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 07:59:45,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:59:45,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:59:45,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983780564] [2023-11-19 07:59:45,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983780564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:45,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:45,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:59:45,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028865702] [2023-11-19 07:59:45,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:45,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:45,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:59:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:45,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:45,204 INFO L87 Difference]: Start difference. First operand 575 states and 632 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)