./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.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_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/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_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/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_4599a977-4f23-4fb1-ad86-f47417db5e3a/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 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:39,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:39,780 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 08:06:39,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:39,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:39,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:39,821 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:39,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:39,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:06:39,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:06:39,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:39,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:39,826 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:39,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:39,827 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:06:39,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:39,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:06:39,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:39,830 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:06:39,831 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:06:39,831 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:06:39,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:06:39,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:06:39,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:06:39,835 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:06:39,835 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:39,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:39,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:39,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:06:39,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:39,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:39,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:06:39,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:39,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:06:39,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:06:39,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:06:39,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:06:39,843 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:06:39,843 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_4599a977-4f23-4fb1-ad86-f47417db5e3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 [2023-11-19 08:06:40,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:40,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:40,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:40,122 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:40,123 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:40,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-19 08:06:43,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:43,935 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:43,937 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-19 08:06:43,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/data/9c8cae4b2/d4861bd17e534f70ae7562dd87b3edf3/FLAGc845ee684 [2023-11-19 08:06:44,003 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/data/9c8cae4b2/d4861bd17e534f70ae7562dd87b3edf3 [2023-11-19 08:06:44,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:44,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:44,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:44,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:44,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:44,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:44" (1/1) ... [2023-11-19 08:06:44,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6022c535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:44, skipping insertion in model container [2023-11-19 08:06:44,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:44" (1/1) ... [2023-11-19 08:06:44,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:45,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:45,980 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 08:06:45,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2d749769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:45, skipping insertion in model container [2023-11-19 08:06:45,981 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:45,982 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 08:06:45,984 INFO L158 Benchmark]: Toolchain (without parser) took 1966.48ms. Allocated memory is still 148.9MB. Free memory was 113.8MB in the beginning and 68.5MB in the end (delta: 45.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-19 08:06:45,985 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:06:45,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1959.72ms. Allocated memory is still 148.9MB. Free memory was 113.2MB in the beginning and 68.5MB in the end (delta: 44.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-19 08:06:45,988 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 115.3MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1959.72ms. Allocated memory is still 148.9MB. Free memory was 113.2MB in the beginning and 68.5MB in the end (delta: 44.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2975]: 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_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/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_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/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_4599a977-4f23-4fb1-ad86-f47417db5e3a/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 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:48,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:48,987 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 08:06:48,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:48,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:49,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:49,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:49,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:49,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:06:49,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:06:49,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:49,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:49,065 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:49,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:49,068 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:06:49,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:49,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:06:49,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:49,070 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:06:49,072 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:06:49,072 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:06:49,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:06:49,074 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:06:49,074 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:06:49,075 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:06:49,075 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:06:49,076 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:06:49,076 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:49,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:49,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:49,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:06:49,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:49,081 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:49,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:06:49,082 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:06:49,082 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:06:49,083 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:06:49,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:06:49,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:06:49,085 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:06:49,085 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:06:49,086 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_4599a977-4f23-4fb1-ad86-f47417db5e3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 [2023-11-19 08:06:49,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:49,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:49,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:49,606 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:49,606 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:49,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-19 08:06:52,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:53,597 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:53,598 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-19 08:06:53,649 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/data/2fe6f5912/67d42d65e92842c1b7ea0069aa2ba7b3/FLAG710a2b0d1 [2023-11-19 08:06:53,675 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/data/2fe6f5912/67d42d65e92842c1b7ea0069aa2ba7b3 [2023-11-19 08:06:53,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:53,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:53,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:53,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:53,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:53,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfdda3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53, skipping insertion in model container [2023-11-19 08:06:53,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:55,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:55,794 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 08:06:55,839 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:56,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:56,207 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:56,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:56,698 WARN L675 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:06:56,706 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:56,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56 WrapperNode [2023-11-19 08:06:56,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:56,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:56,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:56,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:56,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:56,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:56,946 INFO L138 Inliner]: procedures = 482, calls = 840, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 985 [2023-11-19 08:06:56,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:56,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:56,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:56,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:56,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:56,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:56,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:56,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:57,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:57,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:57,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:57,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:57,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:57,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:57,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:57,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:57,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (1/1) ... [2023-11-19 08:06:57,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:57,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:57,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:57,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-19 08:06:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-19 08:06:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-19 08:06:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-19 08:06:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:06:57,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-19 08:06:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 08:06:57,157 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 08:06:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:06:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-19 08:06:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:06:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 08:06:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 08:06:57,160 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 08:06:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:06:57,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-19 08:06:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-19 08:06:57,161 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-19 08:06:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-19 08:06:57,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-19 08:06:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:06:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-19 08:06:57,163 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-19 08:06:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:06:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 08:06:57,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 08:06:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-19 08:06:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-19 08:06:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-19 08:06:57,166 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-19 08:06:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:57,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-19 08:06:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-19 08:06:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-19 08:06:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 08:06:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 08:06:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 08:06:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:06:57,168 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:06:57,168 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-19 08:06:57,168 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-19 08:06:57,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:06:57,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:06:57,169 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 08:06:57,169 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 08:06:57,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 08:06:57,169 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-19 08:06:57,169 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-19 08:06:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 08:06:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 08:06:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 08:06:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:06:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 08:06:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 08:06:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-19 08:06:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-19 08:06:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-19 08:06:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-19 08:06:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-19 08:06:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-19 08:06:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-19 08:06:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-19 08:06:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-19 08:06:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-19 08:06:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-19 08:06:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-19 08:06:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-19 08:06:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-19 08:06:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 08:06:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-19 08:06:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-19 08:06:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 08:06:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 08:06:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-19 08:06:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-19 08:06:57,570 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:57,582 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:07:03,664 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:07:03,715 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:07:03,715 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 08:07:03,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:07:03 BoogieIcfgContainer [2023-11-19 08:07:03,725 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:07:03,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:07:03,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:07:03,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:07:03,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:53" (1/3) ... [2023-11-19 08:07:03,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a455d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:07:03, skipping insertion in model container [2023-11-19 08:07:03,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:56" (2/3) ... [2023-11-19 08:07:03,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a455d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:07:03, skipping insertion in model container [2023-11-19 08:07:03,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:07:03" (3/3) ... [2023-11-19 08:07:03,734 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb_p.i [2023-11-19 08:07:03,752 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:07:03,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2023-11-19 08:07:03,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:07:03,817 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;@3ab7a692, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:07:03,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2023-11-19 08:07:03,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 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 08:07:03,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 08:07:03,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:03,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:07:03,833 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 202 more)] === [2023-11-19 08:07:03,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:03,838 INFO L85 PathProgramCache]: Analyzing trace with hash 331999555, now seen corresponding path program 1 times [2023-11-19 08:07:03,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:07:03,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350724502] [2023-11-19 08:07:03,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:03,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:07:03,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:07:03,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:07:03,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 08:07:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:07:04,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:07:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:04,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:07:04,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:07:04,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350724502] [2023-11-19 08:07:04,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350724502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:04,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:04,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:07:04,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147962596] [2023-11-19 08:07:04,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:04,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:07:04,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:07:04,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:07:04,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:07:04,698 INFO L87 Difference]: Start difference. First operand has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 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 08:07:06,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 08:07:08,752 WARN L539 Checker$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 08:07:13,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:13,170 INFO L93 Difference]: Finished difference Result 1202 states and 1439 transitions. [2023-11-19 08:07:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:07:13,174 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 08:07:13,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:13,200 INFO L225 Difference]: With dead ends: 1202 [2023-11-19 08:07:13,200 INFO L226 Difference]: Without dead ends: 1198 [2023-11-19 08:07:13,202 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 08:07:13,206 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 685 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:07:13,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 2219 Invalid, 1117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1111 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-11-19 08:07:13,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2023-11-19 08:07:13,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 985. [2023-11-19 08:07:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 592 states have (on average 1.802364864864865) internal successors, (1067), 814 states have internal predecessors, (1067), 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 08:07:13,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1343 transitions. [2023-11-19 08:07:13,362 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1343 transitions. Word has length 5 [2023-11-19 08:07:13,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:13,362 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1343 transitions. [2023-11-19 08:07:13,363 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 08:07:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1343 transitions. [2023-11-19 08:07:13,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 08:07:13,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:13,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:07:13,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:07:13,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:07:13,572 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 202 more)] === [2023-11-19 08:07:13,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:13,573 INFO L85 PathProgramCache]: Analyzing trace with hash 331999556, now seen corresponding path program 1 times [2023-11-19 08:07:13,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:07:13,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335414203] [2023-11-19 08:07:13,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:13,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:07:13,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:07:13,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:07:13,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 08:07:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:14,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:07:14,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:07:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:14,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:07:14,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:07:14,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335414203] [2023-11-19 08:07:14,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335414203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:14,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:14,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:07:14,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295231486] [2023-11-19 08:07:14,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:14,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:07:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:07:14,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:07:14,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:07:14,459 INFO L87 Difference]: Start difference. First operand 985 states and 1343 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 08:07:16,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 08:07:18,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 08:07:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:22,847 INFO L93 Difference]: Finished difference Result 1117 states and 1435 transitions. [2023-11-19 08:07:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:07:22,848 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 08:07:22,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:22,860 INFO L225 Difference]: With dead ends: 1117 [2023-11-19 08:07:22,861 INFO L226 Difference]: Without dead ends: 1117 [2023-11-19 08:07:22,861 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 08:07:22,863 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 268 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:07:22,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 2589 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 865 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-11-19 08:07:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-11-19 08:07:22,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1058. [2023-11-19 08:07:22,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 633 states have (on average 1.764612954186414) internal successors, (1117), 856 states have internal predecessors, (1117), 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 08:07:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1431 transitions. [2023-11-19 08:07:22,940 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1431 transitions. Word has length 5 [2023-11-19 08:07:22,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:22,941 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1431 transitions. [2023-11-19 08:07:22,941 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 08:07:22,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1431 transitions. [2023-11-19 08:07:22,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 08:07:22,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:22,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:22,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:07:23,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:07:23,150 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 202 more)] === [2023-11-19 08:07:23,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:23,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1852094909, now seen corresponding path program 1 times [2023-11-19 08:07:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:07:23,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082589228] [2023-11-19 08:07:23,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:23,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:07:23,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:07:23,153 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:07:23,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 08:07:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:23,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:07:23,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:07:23,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:23,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:07:23,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:07:23,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082589228] [2023-11-19 08:07:23,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082589228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:23,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:23,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:07:23,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58454812] [2023-11-19 08:07:23,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:23,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:07:23,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:07:23,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:07:23,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:07:23,884 INFO L87 Difference]: Start difference. First operand 1058 states and 1431 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 08:07:26,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:26,068 INFO L93 Difference]: Finished difference Result 1264 states and 1518 transitions. [2023-11-19 08:07:26,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:07:26,069 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 08:07:26,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:26,082 INFO L225 Difference]: With dead ends: 1264 [2023-11-19 08:07:26,082 INFO L226 Difference]: Without dead ends: 1264 [2023-11-19 08:07:26,082 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 08:07:26,087 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 658 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:07:26,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1227 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 08:07:26,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-11-19 08:07:26,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1057. [2023-11-19 08:07:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 633 states have (on average 1.7567140600315956) internal successors, (1112), 855 states have internal predecessors, (1112), 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 08:07:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1426 transitions. [2023-11-19 08:07:26,167 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1426 transitions. Word has length 11 [2023-11-19 08:07:26,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:26,168 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1426 transitions. [2023-11-19 08:07:26,168 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 08:07:26,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1426 transitions. [2023-11-19 08:07:26,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 08:07:26,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:26,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:26,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:07:26,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:07:26,377 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 202 more)] === [2023-11-19 08:07:26,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:26,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1852094908, now seen corresponding path program 1 times [2023-11-19 08:07:26,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:07:26,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816100216] [2023-11-19 08:07:26,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:26,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:07:26,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:07:26,382 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:07:26,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 08:07:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:26,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:07:26,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:07:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:27,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:07:27,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:07:27,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816100216] [2023-11-19 08:07:27,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816100216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:27,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:27,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:07:27,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159643894] [2023-11-19 08:07:27,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:27,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:07:27,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:07:27,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:07:27,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:07:27,237 INFO L87 Difference]: Start difference. First operand 1057 states and 1426 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 08:07:29,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 08:07:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:31,702 INFO L93 Difference]: Finished difference Result 1123 states and 1441 transitions. [2023-11-19 08:07:31,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:07:31,703 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 08:07:31,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:31,712 INFO L225 Difference]: With dead ends: 1123 [2023-11-19 08:07:31,712 INFO L226 Difference]: Without dead ends: 1123 [2023-11-19 08:07:31,713 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 08:07:31,714 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 268 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1493 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 08:07:31,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1493 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2023-11-19 08:07:31,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2023-11-19 08:07:31,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1060. [2023-11-19 08:07:31,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 636 states have (on average 1.7531446540880504) internal successors, (1115), 858 states have internal predecessors, (1115), 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 08:07:31,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1429 transitions. [2023-11-19 08:07:31,766 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1429 transitions. Word has length 11 [2023-11-19 08:07:31,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:31,767 INFO L495 AbstractCegarLoop]: Abstraction has 1060 states and 1429 transitions. [2023-11-19 08:07:31,767 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 08:07:31,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1429 transitions. [2023-11-19 08:07:31,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 08:07:31,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:31,768 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:31,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/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 08:07:31,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:07:31,977 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 202 more)] === [2023-11-19 08:07:31,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:31,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1685719407, now seen corresponding path program 1 times [2023-11-19 08:07:31,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:07:31,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345705026] [2023-11-19 08:07:31,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:31,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:07:31,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:07:31,983 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:07:31,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4599a977-4f23-4fb1-ad86-f47417db5e3a/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 08:07:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:32,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:07:32,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:07:32,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:32,976 INFO L327 TraceCheckSpWp]: Computing backward predicates...