./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outl_p.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outl_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl --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 8acf23346fce853ea7f29f138c9c8af6d9070a3261dcb0ee52337c4f25e22e59 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:13:39,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:13:40,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:13:40,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:13:40,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:13:40,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:13:40,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:13:40,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:13:40,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:13:40,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:13:40,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:13:40,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:13:40,081 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:13:40,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:13:40,082 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:13:40,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:13:40,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:13:40,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:13:40,085 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:13:40,085 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:13:40,086 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:13:40,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:13:40,087 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:13:40,088 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:13:40,088 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:13:40,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:13:40,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:13:40,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:13:40,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:13:40,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:13:40,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:13:40,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:13:40,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:13:40,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:13:40,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:13:40,095 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:13:40,095 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:13:40,096 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:13:40,096 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_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8acf23346fce853ea7f29f138c9c8af6d9070a3261dcb0ee52337c4f25e22e59 [2023-11-12 02:13:40,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:13:40,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:13:40,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:13:40,437 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:13:40,439 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:13:40,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outl_p.i [2023-11-12 02:13:43,597 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:13:44,080 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:13:44,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outl_p.i [2023-11-12 02:13:44,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/data/1b795addc/d912903477a140aa95202a3f021027ab/FLAG16f5c9579 [2023-11-12 02:13:44,144 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/data/1b795addc/d912903477a140aa95202a3f021027ab [2023-11-12 02:13:44,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:13:44,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:13:44,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:13:44,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:13:44,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:13:44,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:13:44" (1/1) ... [2023-11-12 02:13:44,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4312ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:44, skipping insertion in model container [2023-11-12 02:13:44,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:13:44" (1/1) ... [2023-11-12 02:13:44,291 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:13:45,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:13:45,855 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) [2023-11-12 02:13:45,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24d3b641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:45, skipping insertion in model container [2023-11-12 02:13:45,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:13:45,857 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 02:13:45,860 INFO L158 Benchmark]: Toolchain (without parser) took 1703.47ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 67.1MB in the end (delta: 2.6MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-12 02:13:45,860 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:13:45,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1695.99ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 67.1MB in the end (delta: 2.6MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-12 02:13:45,864 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1695.99ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 67.1MB in the end (delta: 2.6MB). Peak memory consumption was 31.1MB. 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_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outl_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl --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 8acf23346fce853ea7f29f138c9c8af6d9070a3261dcb0ee52337c4f25e22e59 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:13:48,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:13:48,589 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:13:48,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:13:48,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:13:48,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:13:48,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:13:48,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:13:48,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:13:48,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:13:48,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:13:48,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:13:48,645 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:13:48,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:13:48,648 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:13:48,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:13:48,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:13:48,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:13:48,650 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:13:48,651 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:13:48,652 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:13:48,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:13:48,653 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:13:48,654 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:13:48,654 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:13:48,655 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:13:48,656 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:13:48,656 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:13:48,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:13:48,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:13:48,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:13:48,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:13:48,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:13:48,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:13:48,662 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:13:48,662 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:13:48,662 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:13:48,663 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:13:48,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:13:48,664 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:13:48,665 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:13:48,665 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_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8acf23346fce853ea7f29f138c9c8af6d9070a3261dcb0ee52337c4f25e22e59 [2023-11-12 02:13:49,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:13:49,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:13:49,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:13:49,153 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:13:49,154 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:13:49,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outl_p.i [2023-11-12 02:13:52,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:13:52,990 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:13:52,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outl_p.i [2023-11-12 02:13:53,025 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/data/181732c2f/0617823fc439448b9d26f368dea18f0e/FLAG92671dc9b [2023-11-12 02:13:53,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/data/181732c2f/0617823fc439448b9d26f368dea18f0e [2023-11-12 02:13:53,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:13:53,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:13:53,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:13:53,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:13:53,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:13:53,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:13:53" (1/1) ... [2023-11-12 02:13:53,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1e10e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:53, skipping insertion in model container [2023-11-12 02:13:53,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:13:53" (1/1) ... [2023-11-12 02:13:53,175 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:13:54,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:13:54,868 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 02:13:54,948 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:13:55,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:13:55,265 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:13:55,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:13:55,806 WARN L672 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:13:55,815 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:13:55,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55 WrapperNode [2023-11-12 02:13:55,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:13:55,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:13:55,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:13:55,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:13:55,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:55,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,048 INFO L138 Inliner]: procedures = 482, calls = 840, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 985 [2023-11-12 02:13:56,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:13:56,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:13:56,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:13:56,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:13:56,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:13:56,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:13:56,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:13:56,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:13:56,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (1/1) ... [2023-11-12 02:13:56,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:13:56,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:13:56,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:13:56,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:13:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-12 02:13:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-12 02:13:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-12 02:13:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-12 02:13:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:13:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-12 02:13:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:13:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:13:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:13:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-12 02:13:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:13:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 02:13:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 02:13:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 02:13:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:13:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-12 02:13:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-12 02:13:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-12 02:13:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-12 02:13:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-12 02:13:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:13:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-12 02:13:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-12 02:13:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:13:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:13:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:13:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:13:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-12 02:13:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-12 02:13:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-12 02:13:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-12 02:13:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:13:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:13:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-12 02:13:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-12 02:13:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-12 02:13:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:13:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-12 02:13:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:13:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:13:56,339 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:13:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-12 02:13:56,339 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-12 02:13:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:13:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:13:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 02:13:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 02:13:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-12 02:13:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-12 02:13:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-12 02:13:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-12 02:13:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-12 02:13:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:13:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:13:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:13:56,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:13:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-12 02:13:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-12 02:13:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-12 02:13:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-12 02:13:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-12 02:13:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-12 02:13:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-12 02:13:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-12 02:13:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-12 02:13:56,343 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-12 02:13:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-12 02:13:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-12 02:13:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-12 02:13:56,344 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-12 02:13:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-12 02:13:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-12 02:13:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-12 02:13:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 02:13:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 02:13:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-12 02:13:56,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-12 02:13:56,781 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:13:56,784 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:14:02,760 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:14:02,773 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:14:02,773 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:14:02,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:14:02 BoogieIcfgContainer [2023-11-12 02:14:02,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:14:02,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:14:02,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:14:02,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:14:02,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:13:53" (1/3) ... [2023-11-12 02:14:02,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2f0b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:14:02, skipping insertion in model container [2023-11-12 02:14:02,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:55" (2/3) ... [2023-11-12 02:14:02,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2f0b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:14:02, skipping insertion in model container [2023-11-12 02:14:02,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:14:02" (3/3) ... [2023-11-12 02:14:02,786 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outl_p.i [2023-11-12 02:14:02,805 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:14:02,805 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2023-11-12 02:14:02,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:14:02,873 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;@56c7e5cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:14:02,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2023-11-12 02:14:02,881 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) [2023-11-12 02:14:02,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 02:14:02,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:14:02,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:14:02,890 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)] === [2023-11-12 02:14:02,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:02,896 INFO L85 PathProgramCache]: Analyzing trace with hash 328182463, now seen corresponding path program 1 times [2023-11-12 02:14:02,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:14:02,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229525285] [2023-11-12 02:14:02,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:02,913 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 [2023-11-12 02:14:02,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:14:02,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:14:02,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:03,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:14:03,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:03,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:14:03,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:14:03,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229525285] [2023-11-12 02:14:03,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229525285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:03,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:03,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:14:03,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445228144] [2023-11-12 02:14:03,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:03,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:14:03,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:14:03,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:14:03,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:14:03,724 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) [2023-11-12 02:14:05,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:14:07,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:14:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:14:11,862 INFO L93 Difference]: Finished difference Result 1202 states and 1439 transitions. [2023-11-12 02:14:11,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:14:11,865 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 [2023-11-12 02:14:11,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:14:11,891 INFO L225 Difference]: With dead ends: 1202 [2023-11-12 02:14:11,891 INFO L226 Difference]: Without dead ends: 1198 [2023-11-12 02:14:11,893 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 [2023-11-12 02:14:11,897 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 685 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:14:11,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 2232 Invalid, 1104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1098 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2023-11-12 02:14:11,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2023-11-12 02:14:12,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 985. [2023-11-12 02:14:12,033 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) [2023-11-12 02:14:12,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1343 transitions. [2023-11-12 02:14:12,045 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1343 transitions. Word has length 5 [2023-11-12 02:14:12,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:14:12,046 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1343 transitions. [2023-11-12 02:14:12,046 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) [2023-11-12 02:14:12,046 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1343 transitions. [2023-11-12 02:14:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 02:14:12,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:14:12,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:14:12,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:12,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:12,250 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)] === [2023-11-12 02:14:12,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:12,251 INFO L85 PathProgramCache]: Analyzing trace with hash 328182464, now seen corresponding path program 1 times [2023-11-12 02:14:12,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:14:12,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614184280] [2023-11-12 02:14:12,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:12,252 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 [2023-11-12 02:14:12,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:14:12,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:14:12,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:12,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:14:12,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:12,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:14:12,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:14:12,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614184280] [2023-11-12 02:14:12,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614184280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:12,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:12,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:14:12,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117045308] [2023-11-12 02:14:12,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:12,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:14:12,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:14:12,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:14:12,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:14:12,927 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) [2023-11-12 02:14:14,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:14:16,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:14:20,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:14:20,847 INFO L93 Difference]: Finished difference Result 1117 states and 1435 transitions. [2023-11-12 02:14:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:14:20,848 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 [2023-11-12 02:14:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:14:20,862 INFO L225 Difference]: With dead ends: 1117 [2023-11-12 02:14:20,862 INFO L226 Difference]: Without dead ends: 1117 [2023-11-12 02:14:20,863 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 [2023-11-12 02:14:20,865 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 268 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:14:20,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 2604 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 850 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2023-11-12 02:14:20,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-11-12 02:14:20,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1058. [2023-11-12 02:14:20,959 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) [2023-11-12 02:14:20,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1431 transitions. [2023-11-12 02:14:20,971 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1431 transitions. Word has length 5 [2023-11-12 02:14:20,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:14:20,971 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1431 transitions. [2023-11-12 02:14:20,972 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) [2023-11-12 02:14:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1431 transitions. [2023-11-12 02:14:20,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:14:20,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:14:20,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:14:20,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:21,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:21,190 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)] === [2023-11-12 02:14:21,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:21,190 INFO L85 PathProgramCache]: Analyzing trace with hash 466557375, now seen corresponding path program 1 times [2023-11-12 02:14:21,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:14:21,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86148216] [2023-11-12 02:14:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:21,192 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 [2023-11-12 02:14:21,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:14:21,193 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:14:21,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:21,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:14:21,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:21,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:21,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:14:21,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:14:21,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86148216] [2023-11-12 02:14:21,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86148216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:21,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:21,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:14:21,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558084827] [2023-11-12 02:14:21,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:21,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:14:21,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:14:21,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:14:21,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:14:21,966 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) [2023-11-12 02:14:23,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:14:23,770 INFO L93 Difference]: Finished difference Result 1264 states and 1518 transitions. [2023-11-12 02:14:23,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:14:23,771 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 [2023-11-12 02:14:23,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:14:23,781 INFO L225 Difference]: With dead ends: 1264 [2023-11-12 02:14:23,782 INFO L226 Difference]: Without dead ends: 1264 [2023-11-12 02:14:23,782 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 [2023-11-12 02:14:23,784 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 658 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:14:23,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1234 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-12 02:14:23,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2023-11-12 02:14:23,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1057. [2023-11-12 02:14:23,830 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) [2023-11-12 02:14:23,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1426 transitions. [2023-11-12 02:14:23,841 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1426 transitions. Word has length 11 [2023-11-12 02:14:23,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:14:23,841 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1426 transitions. [2023-11-12 02:14:23,842 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) [2023-11-12 02:14:23,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1426 transitions. [2023-11-12 02:14:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:14:23,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:14:23,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:14:23,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:24,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:24,062 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)] === [2023-11-12 02:14:24,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:24,063 INFO L85 PathProgramCache]: Analyzing trace with hash 466557376, now seen corresponding path program 1 times [2023-11-12 02:14:24,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:14:24,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281515867] [2023-11-12 02:14:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:24,064 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 [2023-11-12 02:14:24,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:14:24,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:14:24,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:24,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:14:24,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:24,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:14:24,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:14:24,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281515867] [2023-11-12 02:14:24,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281515867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:24,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:24,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:14:24,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724609464] [2023-11-12 02:14:24,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:24,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:14:24,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:14:24,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:14:24,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:14:24,843 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) [2023-11-12 02:14:26,878 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 [] [2023-11-12 02:14:29,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:14:29,052 INFO L93 Difference]: Finished difference Result 1123 states and 1441 transitions. [2023-11-12 02:14:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:14:29,053 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 [2023-11-12 02:14:29,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:14:29,060 INFO L225 Difference]: With dead ends: 1123 [2023-11-12 02:14:29,060 INFO L226 Difference]: Without dead ends: 1123 [2023-11-12 02:14:29,061 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 [2023-11-12 02:14:29,062 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 268 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:14:29,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1503 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 411 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-11-12 02:14:29,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2023-11-12 02:14:29,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1060. [2023-11-12 02:14:29,095 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) [2023-11-12 02:14:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1429 transitions. [2023-11-12 02:14:29,105 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1429 transitions. Word has length 11 [2023-11-12 02:14:29,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:14:29,105 INFO L495 AbstractCegarLoop]: Abstraction has 1060 states and 1429 transitions. [2023-11-12 02:14:29,105 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) [2023-11-12 02:14:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1429 transitions. [2023-11-12 02:14:29,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:14:29,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:14:29,107 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:14:29,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:29,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:29,321 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)] === [2023-11-12 02:14:29,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:29,322 INFO L85 PathProgramCache]: Analyzing trace with hash 696886511, now seen corresponding path program 1 times [2023-11-12 02:14:29,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:14:29,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91353029] [2023-11-12 02:14:29,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:29,323 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 [2023-11-12 02:14:29,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:14:29,325 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:14:29,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0f9c4b-d9e3-4fad-9ae2-ebdd32315bf2/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:14:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:30,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:14:30,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:14:30,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:30,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:14:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:30,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:14:30,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91353029] [2023-11-12 02:14:30,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91353029] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:14:30,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:14:30,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 7 [2023-11-12 02:14:30,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412348153] [2023-11-12 02:14:30,741 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:14:30,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:14:30,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:14:30,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:14:30,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:14:30,744 INFO L87 Difference]: Start difference. First operand 1060 states and 1429 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) [2023-11-12 02:14:32,786 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 []