./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 32bit --witnessprinter.graph.data.programhash 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:45:07,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:07,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:45:07,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:07,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:07,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:07,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:07,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:07,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:45:07,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:45:07,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:07,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:07,905 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:07,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:07,908 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:45:07,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:07,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:45:07,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:07,910 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:45:07,911 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:45:07,911 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:45:07,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:45:07,912 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:45:07,913 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:45:07,913 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:45:07,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:07,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:07,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:07,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:45:07,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:07,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:07,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:45:07,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:45:07,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:45:07,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:45:07,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:45:07,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:45:07,918 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:45:07,918 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_e2d88e70-457c-4c7a-b41f-86a49e32af00/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2023-11-19 07:45:08,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:08,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:08,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:08,266 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:08,267 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:08,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-11-19 07:45:11,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:45:11,943 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:45:11,944 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-11-19 07:45:11,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/data/ea5f2970e/b9a780b7a8114249ad61489ebbff45f1/FLAGb7b732b31 [2023-11-19 07:45:11,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/data/ea5f2970e/b9a780b7a8114249ad61489ebbff45f1 [2023-11-19 07:45:11,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:45:11,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:45:11,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:11,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:45:12,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:45:12,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:11" (1/1) ... [2023-11-19 07:45:12,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc59172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12, skipping insertion in model container [2023-11-19 07:45:12,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:11" (1/1) ... [2023-11-19 07:45:12,163 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:13,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:13,611 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 07:45:13,612 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48ac6c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:13, skipping insertion in model container [2023-11-19 07:45:13,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:13,613 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:45:13,615 INFO L158 Benchmark]: Toolchain (without parser) took 1619.36ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 71.3MB in the beginning and 100.8MB in the end (delta: -29.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-11-19 07:45:13,616 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory was 112.5MB in the beginning and 112.3MB in the end (delta: 229.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:45:13,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1616.44ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 71.3MB in the beginning and 100.8MB in the end (delta: -29.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-11-19 07:45:13,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory was 112.5MB in the beginning and 112.3MB in the end (delta: 229.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1616.44ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 71.3MB in the beginning and 100.8MB in the end (delta: -29.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2976]: 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_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 32bit --witnessprinter.graph.data.programhash 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:45:16,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:16,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:45:16,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:16,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:16,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:16,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:16,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:16,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:45:16,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:45:16,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:16,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:16,398 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:16,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:16,401 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:45:16,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:16,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:45:16,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:16,403 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:45:16,404 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:45:16,405 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:45:16,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:45:16,406 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:45:16,406 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:45:16,407 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:45:16,407 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:45:16,408 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:45:16,408 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:16,409 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:16,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:16,411 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:45:16,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:16,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:16,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:45:16,412 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:45:16,413 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:45:16,413 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:45:16,413 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:45:16,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:45:16,415 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:45:16,415 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:45:16,415 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_e2d88e70-457c-4c7a-b41f-86a49e32af00/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2023-11-19 07:45:16,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:16,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:16,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:16,912 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:16,912 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:16,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-11-19 07:45:20,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:45:20,617 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:45:20,617 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-11-19 07:45:20,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/data/574e2424b/1a5a1d4bc3d147378179491beb4ab5d2/FLAGb8db43c0d [2023-11-19 07:45:20,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/data/574e2424b/1a5a1d4bc3d147378179491beb4ab5d2 [2023-11-19 07:45:20,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:45:20,685 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:45:20,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:20,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:45:20,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:45:20,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:20" (1/1) ... [2023-11-19 07:45:20,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f7e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:20, skipping insertion in model container [2023-11-19 07:45:20,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:20" (1/1) ... [2023-11-19 07:45:20,829 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:22,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:22,371 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:45:22,409 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:22,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:22,677 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:45:22,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:23,122 WARN L675 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:45:23,131 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:45:23,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23 WrapperNode [2023-11-19 07:45:23,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:23,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:23,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:45:23,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:45:23,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,334 INFO L138 Inliner]: procedures = 482, calls = 840, calls flagged for inlining = 55, calls inlined = 39, statements flattened = 995 [2023-11-19 07:45:23,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:23,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:45:23,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:45:23,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:45:23,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:45:23,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:45:23,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:45:23,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:45:23,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (1/1) ... [2023-11-19 07:45:23,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:23,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:45:23,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:45:23,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:45:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-19 07:45:23,551 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-19 07:45:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-19 07:45:23,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-19 07:45:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:45:23,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-19 07:45:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:45:23,552 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:45:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:45:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-19 07:45:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:45:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:45:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 07:45:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 07:45:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:45:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-19 07:45:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-19 07:45:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-19 07:45:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-19 07:45:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-19 07:45:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:45:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-19 07:45:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-19 07:45:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:45:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:45:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:45:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:45:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-19 07:45:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-19 07:45:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-19 07:45:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-19 07:45:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:45:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:45:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-19 07:45:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-19 07:45:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-19 07:45:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:45:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 07:45:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:45:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:45:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:45:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-19 07:45:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-19 07:45:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:45:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:45:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 07:45:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 07:45:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 07:45:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-19 07:45:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-19 07:45:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 07:45:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 07:45:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:45:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:45:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:45:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-19 07:45:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-19 07:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-19 07:45:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-19 07:45:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-19 07:45:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-19 07:45:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-19 07:45:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-19 07:45:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-19 07:45:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-19 07:45:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-19 07:45:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-19 07:45:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-19 07:45:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-19 07:45:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 07:45:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-19 07:45:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-19 07:45:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 07:45:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 07:45:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-19 07:45:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-19 07:45:23,941 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:45:23,944 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:45:30,052 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:45:30,093 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:45:30,093 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:45:30,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:30 BoogieIcfgContainer [2023-11-19 07:45:30,107 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:45:30,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:45:30,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:45:30,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:45:30,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:20" (1/3) ... [2023-11-19 07:45:30,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308edbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:30, skipping insertion in model container [2023-11-19 07:45:30,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:23" (2/3) ... [2023-11-19 07:45:30,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308edbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:30, skipping insertion in model container [2023-11-19 07:45:30,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:30" (3/3) ... [2023-11-19 07:45:30,121 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2023-11-19 07:45:30,142 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:45:30,142 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 206 error locations. [2023-11-19 07:45:30,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:45:30,232 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;@761964d0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:45:30,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 206 error locations. [2023-11-19 07:45:30,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 672 states, 361 states have (on average 1.811634349030471) internal successors, (654), 573 states have internal predecessors, (654), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-19 07:45:30,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 07:45:30,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:30,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:45:30,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-19 07:45:30,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:30,265 INFO L85 PathProgramCache]: Analyzing trace with hash 347267923, now seen corresponding path program 1 times [2023-11-19 07:45:30,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:45:30,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242038922] [2023-11-19 07:45:30,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:30,285 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 07:45:30,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:45:30,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:30,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:30,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:45:30,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:45:31,038 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 07:45:31,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:45:31,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:45:31,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242038922] [2023-11-19 07:45:31,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242038922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:31,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:31,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:45:31,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952393675] [2023-11-19 07:45:31,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:31,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:45:31,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:45:31,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:45:31,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:45:31,079 INFO L87 Difference]: Start difference. First operand has 672 states, 361 states have (on average 1.811634349030471) internal successors, (654), 573 states have internal predecessors, (654), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:33,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:45:35,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:45:39,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:39,428 INFO L93 Difference]: Finished difference Result 1214 states and 1451 transitions. [2023-11-19 07:45:39,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:39,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 07:45:39,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:39,459 INFO L225 Difference]: With dead ends: 1214 [2023-11-19 07:45:39,459 INFO L226 Difference]: Without dead ends: 1210 [2023-11-19 07:45:39,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:45:39,465 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 691 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:39,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 2246 Invalid, 1117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1111 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2023-11-19 07:45:39,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2023-11-19 07:45:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 994. [2023-11-19 07:45:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 600 states have (on average 1.795) internal successors, (1077), 823 states have internal predecessors, (1077), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2023-11-19 07:45:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1353 transitions. [2023-11-19 07:45:39,633 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1353 transitions. Word has length 5 [2023-11-19 07:45:39,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:39,634 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1353 transitions. [2023-11-19 07:45:39,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1353 transitions. [2023-11-19 07:45:39,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 07:45:39,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:39,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:45:39,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:39,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:39,841 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-19 07:45:39,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:39,842 INFO L85 PathProgramCache]: Analyzing trace with hash 347267924, now seen corresponding path program 1 times [2023-11-19 07:45:39,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:45:39,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654987740] [2023-11-19 07:45:39,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:39,844 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 07:45:39,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:45:39,846 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:39,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:40,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:45:40,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:45:40,605 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 07:45:40,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:45:40,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:45:40,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654987740] [2023-11-19 07:45:40,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654987740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:40,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:40,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:45:40,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622579903] [2023-11-19 07:45:40,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:40,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:45:40,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:45:40,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:45:40,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:45:40,610 INFO L87 Difference]: Start difference. First operand 994 states and 1353 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:42,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:45:44,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:45:48,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:48,733 INFO L93 Difference]: Finished difference Result 1132 states and 1451 transitions. [2023-11-19 07:45:48,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:48,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 07:45:48,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:48,744 INFO L225 Difference]: With dead ends: 1132 [2023-11-19 07:45:48,744 INFO L226 Difference]: Without dead ends: 1132 [2023-11-19 07:45:48,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:45:48,746 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 274 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:48,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 2613 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 865 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2023-11-19 07:45:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-11-19 07:45:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1070. [2023-11-19 07:45:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 644 states have (on average 1.7562111801242235) internal successors, (1131), 868 states have internal predecessors, (1131), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-19 07:45:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1445 transitions. [2023-11-19 07:45:48,833 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1445 transitions. Word has length 5 [2023-11-19 07:45:48,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:48,833 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1445 transitions. [2023-11-19 07:45:48,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1445 transitions. [2023-11-19 07:45:48,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:45:48,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:48,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:48,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:49,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:49,050 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-19 07:45:49,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:49,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1758197843, now seen corresponding path program 1 times [2023-11-19 07:45:49,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:45:49,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313777896] [2023-11-19 07:45:49,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:49,052 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 07:45:49,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:45:49,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:49,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:49,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:45:49,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:45:49,717 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 07:45:49,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:45:49,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:45:49,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313777896] [2023-11-19 07:45:49,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313777896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:49,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:49,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:45:49,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106576536] [2023-11-19 07:45:49,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:49,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:45:49,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:45:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:45:49,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:45:49,720 INFO L87 Difference]: Start difference. First operand 1070 states and 1445 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:45:51,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:51,549 INFO L93 Difference]: Finished difference Result 1279 states and 1534 transitions. [2023-11-19 07:45:51,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:45:51,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-19 07:45:51,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:51,559 INFO L225 Difference]: With dead ends: 1279 [2023-11-19 07:45:51,561 INFO L226 Difference]: Without dead ends: 1279 [2023-11-19 07:45:51,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 07:45:51,566 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 664 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:51,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1239 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:45:51,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2023-11-19 07:45:51,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1069. [2023-11-19 07:45:51,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 644 states have (on average 1.7484472049689441) internal successors, (1126), 867 states have internal predecessors, (1126), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-19 07:45:51,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1440 transitions. [2023-11-19 07:45:51,631 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1440 transitions. Word has length 11 [2023-11-19 07:45:51,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:51,631 INFO L495 AbstractCegarLoop]: Abstraction has 1069 states and 1440 transitions. [2023-11-19 07:45:51,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:45:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1440 transitions. [2023-11-19 07:45:51,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:45:51,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:51,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:51,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:51,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:51,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-19 07:45:51,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1758197844, now seen corresponding path program 1 times [2023-11-19 07:45:51,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:45:51,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773746774] [2023-11-19 07:45:51,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:51,843 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 07:45:51,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:45:51,844 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:51,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:52,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:45:52,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:45:52,646 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 07:45:52,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:45:52,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:45:52,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773746774] [2023-11-19 07:45:52,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773746774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:52,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:52,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:45:52,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983519385] [2023-11-19 07:45:52,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:52,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:52,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:45:52,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:52,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:52,649 INFO L87 Difference]: Start difference. First operand 1069 states and 1440 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:45:54,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:45:57,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:57,117 INFO L93 Difference]: Finished difference Result 1138 states and 1457 transitions. [2023-11-19 07:45:57,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:45:57,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-19 07:45:57,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:57,127 INFO L225 Difference]: With dead ends: 1138 [2023-11-19 07:45:57,128 INFO L226 Difference]: Without dead ends: 1138 [2023-11-19 07:45:57,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:57,131 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 274 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:57,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1511 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2023-11-19 07:45:57,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2023-11-19 07:45:57,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1072. [2023-11-19 07:45:57,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 647 states have (on average 1.7449768160741885) internal successors, (1129), 870 states have internal predecessors, (1129), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-19 07:45:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1443 transitions. [2023-11-19 07:45:57,192 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1443 transitions. Word has length 11 [2023-11-19 07:45:57,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:57,192 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1443 transitions. [2023-11-19 07:45:57,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:45:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1443 transitions. [2023-11-19 07:45:57,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 07:45:57,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:57,195 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:57,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:57,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:57,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-19 07:45:57,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1346083695, now seen corresponding path program 1 times [2023-11-19 07:45:57,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:45:57,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255907755] [2023-11-19 07:45:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:57,404 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 07:45:57,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:45:57,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:57,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d88e70-457c-4c7a-b41f-86a49e32af00/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 07:45:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:58,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:45:58,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:45:58,292 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 07:45:58,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:45:58,607 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 07:45:58,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:45:58,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255907755] [2023-11-19 07:45:58,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255907755] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:45:58,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:45:58,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 7 [2023-11-19 07:45:58,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606609858] [2023-11-19 07:45:58,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:45:58,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:45:58,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:45:58,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:45:58,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:45:58,610 INFO L87 Difference]: Start difference. First operand 1072 states and 1443 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:46:00,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:46:02,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []