./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c --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_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:42:57,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:42:57,208 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:42:57,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:42:57,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:42:57,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:42:57,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:42:57,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:42:57,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:42:57,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:42:57,266 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:42:57,266 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:42:57,267 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:42:57,269 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:42:57,269 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:42:57,270 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:42:57,270 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:42:57,271 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:42:57,272 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:42:57,272 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:42:57,273 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:42:57,274 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:42:57,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:42:57,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:42:57,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:42:57,277 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:42:57,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:42:57,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:42:57,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:42:57,279 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:42:57,280 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:42:57,281 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:42:57,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:42:57,281 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:42:57,282 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:42:57,282 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:42:57,282 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:42:57,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:42:57,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:42:57,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:57,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:42:57,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:42:57,285 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:42:57,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:42:57,286 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:42:57,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:42:57,286 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 [2023-11-12 00:42:57,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:42:57,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:42:57,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:42:57,650 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:42:57,651 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:42:57,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-12 00:43:00,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:43:01,028 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:43:01,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-12 00:43:01,052 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/data/02d8c2d30/f24bc0fcaf044eecaeb8e0760fe2514e/FLAG3a9d82b8c [2023-11-12 00:43:01,069 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/data/02d8c2d30/f24bc0fcaf044eecaeb8e0760fe2514e [2023-11-12 00:43:01,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:43:01,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:43:01,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:01,082 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:43:01,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:43:01,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:01" (1/1) ... [2023-11-12 00:43:01,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1d59ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:01, skipping insertion in model container [2023-11-12 00:43:01,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:01" (1/1) ... [2023-11-12 00:43:01,121 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:43:01,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:01,433 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 00:43:01,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1aac9cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:01, skipping insertion in model container [2023-11-12 00:43:01,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:01,435 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:43:01,438 INFO L158 Benchmark]: Toolchain (without parser) took 358.95ms. Allocated memory is still 178.3MB. Free memory was 134.1MB in the beginning and 123.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:43:01,438 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:43:01,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.19ms. Allocated memory is still 178.3MB. Free memory was 133.7MB in the beginning and 123.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:43:01,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.19ms. Allocated memory is still 178.3MB. Free memory was 133.7MB in the beginning and 123.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 100]: 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_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:43:03,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:43:03,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:43:03,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:43:03,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:43:03,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:43:03,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:43:03,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:43:03,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:43:03,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:43:03,972 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:43:03,973 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:43:03,974 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:43:03,974 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:43:03,975 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:43:03,975 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:43:03,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:43:03,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:43:03,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:43:03,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:43:03,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:43:03,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:43:03,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:43:03,981 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:43:03,982 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:43:03,982 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:43:03,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:43:03,983 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:43:03,983 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:43:03,984 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:43:03,984 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:43:03,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:43:03,985 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:43:03,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:43:03,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:43:03,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:43:03,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:03,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:43:03,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:43:03,988 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:43:03,989 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:43:03,990 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:43:03,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:43:03,991 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 [2023-11-12 00:43:04,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:43:04,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:43:04,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:43:04,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:43:04,454 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:43:04,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-12 00:43:07,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:43:07,930 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:43:07,931 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-12 00:43:07,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/data/359c5e1bd/c7ea2f36eb994d68bc0168b7015faef2/FLAG1092275df [2023-11-12 00:43:07,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/data/359c5e1bd/c7ea2f36eb994d68bc0168b7015faef2 [2023-11-12 00:43:07,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:43:07,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:43:07,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:07,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:43:07,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:43:07,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:07" (1/1) ... [2023-11-12 00:43:07,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28d57ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:07, skipping insertion in model container [2023-11-12 00:43:07,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:07" (1/1) ... [2023-11-12 00:43:07,993 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:43:08,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:08,268 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:43:08,282 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:43:08,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:08,336 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:43:08,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:08,423 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:43:08,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08 WrapperNode [2023-11-12 00:43:08,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:08,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:08,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:43:08,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:43:08,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,533 INFO L138 Inliner]: procedures = 28, calls = 46, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 276 [2023-11-12 00:43:08,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:08,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:43:08,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:43:08,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:43:08,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:43:08,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:43:08,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:43:08,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:43:08,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (1/1) ... [2023-11-12 00:43:08,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:08,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:08,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:43:08,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1298ef3a-9b87-46e4-8628-60dc182e938c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:43:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:43:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:43:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:43:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:43:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 00:43:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 00:43:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 00:43:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 00:43:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 00:43:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 00:43:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:43:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:43:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:43:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:43:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:43:08,707 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:43:08,902 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:43:08,905 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:43:09,808 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:43:09,819 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:43:09,820 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 00:43:09,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:09 BoogieIcfgContainer [2023-11-12 00:43:09,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:43:09,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:43:09,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:43:09,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:43:09,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:43:07" (1/3) ... [2023-11-12 00:43:09,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e181d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:09, skipping insertion in model container [2023-11-12 00:43:09,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:08" (2/3) ... [2023-11-12 00:43:09,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e181d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:09, skipping insertion in model container [2023-11-12 00:43:09,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:09" (3/3) ... [2023-11-12 00:43:09,832 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2023-11-12 00:43:09,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:43:09,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-12 00:43:09,851 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:43:10,073 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 00:43:10,122 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:43:10,138 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 386 places, 405 transitions, 831 flow [2023-11-12 00:43:10,141 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 386 places, 405 transitions, 831 flow [2023-11-12 00:43:10,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 386 places, 405 transitions, 831 flow [2023-11-12 00:43:10,389 INFO L124 PetriNetUnfolderBase]: 29/402 cut-off events. [2023-11-12 00:43:10,389 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 00:43:10,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 402 events. 29/402 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 675 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 257. Up to 2 conditions per place. [2023-11-12 00:43:10,418 INFO L119 LiptonReduction]: Number of co-enabled transitions 22446