./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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_118e78e9-0d94-4307-b4b6-104a61338d8c/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 b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:30,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:30,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:17:30,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:30,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:30,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:30,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:30,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:30,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:30,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:30,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:30,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:30,540 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:30,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:30,541 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:30,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:30,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:30,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:30,543 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:17:30,544 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:17:30,544 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:17:30,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:30,545 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:17:30,546 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:17:30,546 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:30,547 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:30,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:30,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:30,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:30,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:30,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:30,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:30,549 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:30,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:30,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:30,550 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:30,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:30,551 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:30,551 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_118e78e9-0d94-4307-b4b6-104a61338d8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 [2023-11-12 02:17:30,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:30,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:30,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:30,825 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:30,825 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:30,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2023-11-12 02:17:34,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:34,545 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:34,545 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2023-11-12 02:17:34,592 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/data/33c820433/a553999a192c4a01aba9dc17ca7e4f4c/FLAGc7fa1a665 [2023-11-12 02:17:34,606 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/data/33c820433/a553999a192c4a01aba9dc17ca7e4f4c [2023-11-12 02:17:34,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:34,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:34,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:34,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:34,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:34,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:34" (1/1) ... [2023-11-12 02:17:34,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21244435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:34, skipping insertion in model container [2023-11-12 02:17:34,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:34" (1/1) ... [2023-11-12 02:17:34,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:36,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:36,358 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 02:17:36,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@664f2f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:36, skipping insertion in model container [2023-11-12 02:17:36,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:36,360 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 02:17:36,361 INFO L158 Benchmark]: Toolchain (without parser) took 1750.65ms. Allocated memory is still 159.4MB. Free memory was 124.6MB in the beginning and 79.9MB in the end (delta: 44.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-12 02:17:36,362 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 76.7MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:17:36,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1748.15ms. Allocated memory is still 159.4MB. Free memory was 124.0MB in the beginning and 79.9MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-12 02:17:36,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 76.7MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1748.15ms. Allocated memory is still 159.4MB. Free memory was 124.0MB in the beginning and 79.9MB in the end (delta: 44.0MB). 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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_118e78e9-0d94-4307-b4b6-104a61338d8c/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 b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:38,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:38,999 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:17:39,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:39,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:39,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:39,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:39,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:39,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:39,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:39,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:39,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:39,081 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:39,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:39,083 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:39,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:39,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:39,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:39,085 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:17:39,086 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:17:39,086 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:17:39,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:39,087 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:17:39,088 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:17:39,088 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:17:39,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:17:39,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:39,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:39,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:39,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:39,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:39,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:39,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:39,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:39,093 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:17:39,094 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:17:39,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:39,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:39,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:39,095 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:17:39,096 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:39,096 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_118e78e9-0d94-4307-b4b6-104a61338d8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 [2023-11-12 02:17:39,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:39,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:39,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:39,551 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:39,552 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:39,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2023-11-12 02:17:42,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:43,245 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:43,246 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2023-11-12 02:17:43,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/data/9e89b49a1/1ff1b7b3f14049408a0139a0b98ccc0a/FLAGc0b1e9072 [2023-11-12 02:17:43,306 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/data/9e89b49a1/1ff1b7b3f14049408a0139a0b98ccc0a [2023-11-12 02:17:43,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:43,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:43,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:43,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:43,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:43,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:43" (1/1) ... [2023-11-12 02:17:43,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d304a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:43, skipping insertion in model container [2023-11-12 02:17:43,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:43" (1/1) ... [2023-11-12 02:17:43,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:44,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:45,015 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 02:17:45,041 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:45,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:45,310 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:45,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:45,809 WARN L672 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:17:45,817 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:45,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45 WrapperNode [2023-11-12 02:17:45,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:45,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:45,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:45,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:45,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:45,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,007 INFO L138 Inliner]: procedures = 482, calls = 840, calls flagged for inlining = 55, calls inlined = 39, statements flattened = 997 [2023-11-12 02:17:46,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:46,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:46,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:46,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:46,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:46,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:46,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:46,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:46,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (1/1) ... [2023-11-12 02:17:46,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:46,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:46,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:46,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-12 02:17:46,274 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-12 02:17:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-12 02:17:46,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-12 02:17:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:17:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-12 02:17:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:17:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:17:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:17:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-12 02:17:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:17:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 02:17:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 02:17:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 02:17:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:17:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-12 02:17:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-12 02:17:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-12 02:17:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-12 02:17:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-12 02:17:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:17:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-12 02:17:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-12 02:17:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:17:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:17:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:17:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-12 02:17:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-12 02:17:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-12 02:17:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-12 02:17:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:46,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-12 02:17:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-12 02:17:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-12 02:17:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:17:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-12 02:17:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:17:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:17:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:17:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-12 02:17:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-12 02:17:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:17:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:17:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 02:17:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 02:17:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-12 02:17:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-12 02:17:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-12 02:17:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-12 02:17:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-12 02:17:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:17:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:17:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:17:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:17:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-12 02:17:46,290 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-12 02:17:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-12 02:17:46,290 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-12 02:17:46,290 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-12 02:17:46,291 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-12 02:17:46,291 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-12 02:17:46,292 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-12 02:17:46,292 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-12 02:17:46,292 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-12 02:17:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-12 02:17:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-12 02:17:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-12 02:17:46,293 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-12 02:17:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-12 02:17:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-12 02:17:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-12 02:17:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 02:17:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 02:17:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-12 02:17:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-12 02:17:46,676 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:46,679 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:52,470 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:52,488 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:52,488 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:17:52,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:52 BoogieIcfgContainer [2023-11-12 02:17:52,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:52,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:52,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:52,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:52,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:43" (1/3) ... [2023-11-12 02:17:52,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0590d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:52, skipping insertion in model container [2023-11-12 02:17:52,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:45" (2/3) ... [2023-11-12 02:17:52,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0590d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:52, skipping insertion in model container [2023-11-12 02:17:52,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:52" (3/3) ... [2023-11-12 02:17:52,505 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb.i [2023-11-12 02:17:52,524 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:52,524 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 206 error locations. [2023-11-12 02:17:52,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:52,612 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;@242ed164, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:52,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 206 error locations. [2023-11-12 02:17:52,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 672 states, 361 states have (on average 1.811634349030471) internal successors, (654), 573 states have internal predecessors, (654), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-12 02:17:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 02:17:52,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:52,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:17:52,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-12 02:17:52,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:52,644 INFO L85 PathProgramCache]: Analyzing trace with hash 343450831, now seen corresponding path program 1 times [2023-11-12 02:17:52,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:17:52,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240321883] [2023-11-12 02:17:52,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:52,662 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 02:17:52,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:17:52,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:17:52,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:17:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:53,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:17:53,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:53,375 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 02:17:53,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:53,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:17:53,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240321883] [2023-11-12 02:17:53,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240321883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:53,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:53,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:17:53,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720742498] [2023-11-12 02:17:53,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:53,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:53,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:17:53,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:53,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:53,415 INFO L87 Difference]: Start difference. First operand has 672 states, 361 states have (on average 1.811634349030471) internal successors, (654), 573 states have internal predecessors, (654), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:55,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:17:57,463 WARN L539 Checker$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 02:18:00,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:00,959 INFO L93 Difference]: Finished difference Result 1214 states and 1451 transitions. [2023-11-12 02:18:00,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:18:00,966 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 02:18:00,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:00,986 INFO L225 Difference]: With dead ends: 1214 [2023-11-12 02:18:00,987 INFO L226 Difference]: Without dead ends: 1210 [2023-11-12 02:18:00,988 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 02:18:00,991 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 691 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:00,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 2310 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1110 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2023-11-12 02:18:01,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2023-11-12 02:18:01,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 994. [2023-11-12 02:18:01,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 600 states have (on average 1.795) internal successors, (1077), 823 states have internal predecessors, (1077), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2023-11-12 02:18:01,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1353 transitions. [2023-11-12 02:18:01,137 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1353 transitions. Word has length 5 [2023-11-12 02:18:01,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:01,137 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1353 transitions. [2023-11-12 02:18:01,137 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 02:18:01,138 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1353 transitions. [2023-11-12 02:18:01,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 02:18:01,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:01,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:18:01,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:01,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:01,348 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-12 02:18:01,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:01,348 INFO L85 PathProgramCache]: Analyzing trace with hash 343450832, now seen corresponding path program 1 times [2023-11-12 02:18:01,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:18:01,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587848346] [2023-11-12 02:18:01,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:01,350 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 02:18:01,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:18:01,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:01,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:01,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:18:01,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:02,031 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 02:18:02,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:02,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:18:02,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587848346] [2023-11-12 02:18:02,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587848346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:02,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:02,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:18:02,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203869456] [2023-11-12 02:18:02,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:02,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:02,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:18:02,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:02,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:02,037 INFO L87 Difference]: Start difference. First operand 994 states and 1353 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:04,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:18:06,080 WARN L539 Checker$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 02:18:09,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:09,383 INFO L93 Difference]: Finished difference Result 1132 states and 1451 transitions. [2023-11-12 02:18:09,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:18:09,384 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 02:18:09,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:09,394 INFO L225 Difference]: With dead ends: 1132 [2023-11-12 02:18:09,395 INFO L226 Difference]: Without dead ends: 1132 [2023-11-12 02:18:09,395 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 02:18:09,397 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 274 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:09,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 2591 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 842 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2023-11-12 02:18:09,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-11-12 02:18:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1070. [2023-11-12 02:18:09,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 644 states have (on average 1.7562111801242235) internal successors, (1131), 868 states have internal predecessors, (1131), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-12 02:18:09,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1445 transitions. [2023-11-12 02:18:09,475 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1445 transitions. Word has length 5 [2023-11-12 02:18:09,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:09,476 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1445 transitions. [2023-11-12 02:18:09,476 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 02:18:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1445 transitions. [2023-11-12 02:18:09,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:18:09,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:09,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:09,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:09,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:09,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-12 02:18:09,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:09,693 INFO L85 PathProgramCache]: Analyzing trace with hash -218117169, now seen corresponding path program 1 times [2023-11-12 02:18:09,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:18:09,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34686910] [2023-11-12 02:18:09,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:09,694 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 02:18:09,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:18:09,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:09,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:10,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:18:10,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:10,361 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 02:18:10,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:10,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:18:10,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34686910] [2023-11-12 02:18:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34686910] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:10,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:18:10,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361662843] [2023-11-12 02:18:10,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:18:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:18:10,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:18:10,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:18:10,365 INFO L87 Difference]: Start difference. First operand 1070 states and 1445 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:18:12,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:12,067 INFO L93 Difference]: Finished difference Result 1279 states and 1534 transitions. [2023-11-12 02:18:12,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:18:12,067 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 02:18:12,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:12,076 INFO L225 Difference]: With dead ends: 1279 [2023-11-12 02:18:12,076 INFO L226 Difference]: Without dead ends: 1279 [2023-11-12 02:18:12,076 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 02:18:12,077 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 664 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:12,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1231 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 02:18:12,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2023-11-12 02:18:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1069. [2023-11-12 02:18:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 644 states have (on average 1.7484472049689441) internal successors, (1126), 867 states have internal predecessors, (1126), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-12 02:18:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1440 transitions. [2023-11-12 02:18:12,163 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1440 transitions. Word has length 11 [2023-11-12 02:18:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:12,163 INFO L495 AbstractCegarLoop]: Abstraction has 1069 states and 1440 transitions. [2023-11-12 02:18:12,164 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 02:18:12,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1440 transitions. [2023-11-12 02:18:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:18:12,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:12,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:12,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:12,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:12,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-12 02:18:12,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:12,379 INFO L85 PathProgramCache]: Analyzing trace with hash -218117168, now seen corresponding path program 1 times [2023-11-12 02:18:12,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:18:12,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587262029] [2023-11-12 02:18:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:12,380 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 [2023-11-12 02:18:12,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:18:12,382 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:12,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:12,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:18:12,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:13,059 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 02:18:13,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:13,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:18:13,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587262029] [2023-11-12 02:18:13,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587262029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:13,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:13,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:18:13,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022126864] [2023-11-12 02:18:13,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:13,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:18:13,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:18:13,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:18:13,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:18:13,068 INFO L87 Difference]: Start difference. First operand 1069 states and 1440 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:18:15,103 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 02:18:17,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:17,300 INFO L93 Difference]: Finished difference Result 1138 states and 1457 transitions. [2023-11-12 02:18:17,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:18:17,301 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 02:18:17,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:17,308 INFO L225 Difference]: With dead ends: 1138 [2023-11-12 02:18:17,309 INFO L226 Difference]: Without dead ends: 1138 [2023-11-12 02:18:17,309 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 02:18:17,310 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 274 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:17,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1506 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 411 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-12 02:18:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2023-11-12 02:18:17,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1072. [2023-11-12 02:18:17,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 647 states have (on average 1.7449768160741885) internal successors, (1129), 870 states have internal predecessors, (1129), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-12 02:18:17,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1443 transitions. [2023-11-12 02:18:17,352 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1443 transitions. Word has length 11 [2023-11-12 02:18:17,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:17,352 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1443 transitions. [2023-11-12 02:18:17,352 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 02:18:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1443 transitions. [2023-11-12 02:18:17,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:18:17,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:17,353 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:17,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:17,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:17,569 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 203 more)] === [2023-11-12 02:18:17,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:17,569 INFO L85 PathProgramCache]: Analyzing trace with hash 357250799, now seen corresponding path program 1 times [2023-11-12 02:18:17,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:18:17,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597479671] [2023-11-12 02:18:17,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:17,570 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 02:18:17,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:18:17,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:17,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118e78e9-0d94-4307-b4b6-104a61338d8c/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 02:18:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:18,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:18:18,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:18,361 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 02:18:18,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:18:18,672 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 02:18:18,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:18:18,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597479671] [2023-11-12 02:18:18,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597479671] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:18:18,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:18:18,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 7 [2023-11-12 02:18:18,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341332086] [2023-11-12 02:18:18,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:18:18,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:18:18,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:18:18,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:18:18,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:18:18,674 INFO L87 Difference]: Start difference. First operand 1072 states and 1443 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:18:20,705 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 02:18:22,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:18:24,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []