./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91 --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 cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:57:25,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:57:25,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-24 23:57:25,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:57:25,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:57:25,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:57:25,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:57:25,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:57:25,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:57:25,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:57:25,640 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:57:25,642 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:57:25,642 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:57:25,644 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:57:25,644 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:57:25,645 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:57:25,645 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:57:25,645 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:57:25,646 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:57:25,646 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:57:25,647 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:57:25,647 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:57:25,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:57:25,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:57:25,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:57:25,650 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:57:25,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:57:25,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:57:25,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:57:25,651 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:57:25,652 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:57:25,652 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:57:25,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:57:25,652 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:57:25,653 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:57:25,653 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:57:25,653 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:57:25,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:57:25,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:57:25,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:57:25,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:25,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:57:25,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:57:25,655 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:57:25,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:57:25,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:57:25,656 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:57:25,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:57:25,657 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_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 [2023-11-24 23:57:25,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:57:25,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:57:25,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:57:25,981 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:57:25,982 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:57:25,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-24 23:57:29,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:57:29,962 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:57:29,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-24 23:57:29,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/data/8f7be3650/526721f720fe4031bdbc937ed02e8849/FLAGb5e42182e [2023-11-24 23:57:30,059 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/data/8f7be3650/526721f720fe4031bdbc937ed02e8849 [2023-11-24 23:57:30,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:57:30,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:57:30,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:30,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:57:30,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:57:30,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:30" (1/1) ... [2023-11-24 23:57:30,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40330498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:30, skipping insertion in model container [2023-11-24 23:57:30,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:30" (1/1) ... [2023-11-24 23:57:30,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:57:31,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:31,392 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) [2023-11-24 23:57:31,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3368e273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:31, skipping insertion in model container [2023-11-24 23:57:31,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:31,393 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 23:57:31,395 INFO L158 Benchmark]: Toolchain (without parser) took 1330.44ms. Allocated memory is still 165.7MB. Free memory was 115.7MB in the beginning and 130.9MB in the end (delta: -15.2MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2023-11-24 23:57:31,396 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:57:31,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1327.35ms. Allocated memory is still 165.7MB. Free memory was 115.3MB in the beginning and 130.9MB in the end (delta: -15.6MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2023-11-24 23:57:31,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1327.35ms. Allocated memory is still 165.7MB. Free memory was 115.3MB in the beginning and 130.9MB in the end (delta: -15.6MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: 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_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91 --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 cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:57:33,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:57:33,999 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-24 23:57:34,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:57:34,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:57:34,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:57:34,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:57:34,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:57:34,041 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:57:34,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:57:34,043 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:57:34,043 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:57:34,044 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:57:34,045 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:57:34,045 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:57:34,046 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:57:34,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:57:34,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:57:34,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:57:34,048 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:57:34,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:57:34,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:57:34,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:57:34,051 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:57:34,051 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:57:34,052 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:57:34,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:57:34,053 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:57:34,053 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:57:34,054 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:57:34,054 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:57:34,055 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:57:34,055 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:57:34,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:57:34,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:57:34,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:57:34,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:57:34,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:34,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:57:34,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:57:34,058 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:57:34,059 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:57:34,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:57:34,059 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:57:34,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:57:34,060 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_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 [2023-11-24 23:57:34,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:57:34,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:57:34,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:57:34,560 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:57:34,561 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:57:34,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-24 23:57:38,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:57:38,612 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:57:38,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-24 23:57:38,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/data/8308a205e/76fe7f486c874f65b5a06623e4f20df8/FLAGa33696352 [2023-11-24 23:57:38,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/data/8308a205e/76fe7f486c874f65b5a06623e4f20df8 [2023-11-24 23:57:38,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:57:38,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:57:38,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:38,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:57:38,714 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:57:38,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:38" (1/1) ... [2023-11-24 23:57:38,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7753c62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:38, skipping insertion in model container [2023-11-24 23:57:38,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:38" (1/1) ... [2023-11-24 23:57:38,831 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:57:39,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:39,926 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 23:57:39,962 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:57:40,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:40,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:57:40,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:40,529 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:57:40,538 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:57:40,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40 WrapperNode [2023-11-24 23:57:40,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:40,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:40,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:57:40,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:57:40,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:40,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:40,788 INFO L138 Inliner]: procedures = 180, calls = 783, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3040 [2023-11-24 23:57:40,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:40,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:57:40,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:57:40,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:57:40,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:40,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:40,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:40,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:41,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:41,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:41,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:41,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:41,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:57:41,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:57:41,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:57:41,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:57:41,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (1/1) ... [2023-11-24 23:57:41,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:41,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:41,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:57:41,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:57:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 23:57:41,252 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 23:57:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:57:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:57:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:57:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:57:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:57:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:57:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:57:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:57:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:57:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:57:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:57:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:57:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:57:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:57:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:57:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:57:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:57:41,582 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:57:41,584 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:57:41,629 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:57:49,503 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:57:49,765 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:57:49,765 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-24 23:57:49,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:49 BoogieIcfgContainer [2023-11-24 23:57:49,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:57:49,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:57:49,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:57:49,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:57:49,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:57:38" (1/3) ... [2023-11-24 23:57:49,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5039c8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:49, skipping insertion in model container [2023-11-24 23:57:49,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:40" (2/3) ... [2023-11-24 23:57:49,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5039c8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:49, skipping insertion in model container [2023-11-24 23:57:49,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:49" (3/3) ... [2023-11-24 23:57:49,780 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-2.i [2023-11-24 23:57:49,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:57:49,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 535 error locations. [2023-11-24 23:57:49,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:57:49,933 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=FINITE_AUTOMATA, 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;@3fe7e90d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:57:49,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 535 error locations. [2023-11-24 23:57:49,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 1974 states, 933 states have (on average 2.2411575562700965) internal successors, (2091), 1967 states have internal predecessors, (2091), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-24 23:57:49,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:57:49,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:49,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 23:57:49,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-24 23:57:49,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:49,969 INFO L85 PathProgramCache]: Analyzing trace with hash 177931, now seen corresponding path program 1 times [2023-11-24 23:57:50,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:57:50,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19355070] [2023-11-24 23:57:50,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:50,016 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 [2023-11-24 23:57:50,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:57:50,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:57:50,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:57:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:50,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:57:50,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:50,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 23:57:50,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:50,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:57:50,395 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:57:50,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19355070] [2023-11-24 23:57:50,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19355070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:50,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:50,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:57:50,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122483182] [2023-11-24 23:57:50,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:50,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:50,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:57:50,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:50,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:50,453 INFO L87 Difference]: Start difference. First operand has 1974 states, 933 states have (on average 2.2411575562700965) internal successors, (2091), 1967 states have internal predecessors, (2091), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:54,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:54,690 INFO L93 Difference]: Finished difference Result 2126 states and 3192 transitions. [2023-11-24 23:57:54,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:54,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-24 23:57:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:54,745 INFO L225 Difference]: With dead ends: 2126 [2023-11-24 23:57:54,745 INFO L226 Difference]: Without dead ends: 2125 [2023-11-24 23:57:54,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:54,751 INFO L413 NwaCegarLoop]: 2526 mSDtfsCounter, 1896 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:54,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 2654 Invalid, 1164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-24 23:57:54,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2023-11-24 23:57:55,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 1960. [2023-11-24 23:57:55,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1960 states, 936 states have (on average 2.1474358974358974) internal successors, (2010), 1953 states have internal predecessors, (2010), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-24 23:57:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 3018 transitions. [2023-11-24 23:57:55,310 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 3018 transitions. Word has length 2 [2023-11-24 23:57:55,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:55,311 INFO L495 AbstractCegarLoop]: Abstraction has 1960 states and 3018 transitions. [2023-11-24 23:57:55,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:55,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 3018 transitions. [2023-11-24 23:57:55,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:57:55,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:55,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 23:57:55,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-24 23:57:55,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:57:55,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-24 23:57:55,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:55,519 INFO L85 PathProgramCache]: Analyzing trace with hash 177932, now seen corresponding path program 1 times [2023-11-24 23:57:55,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:57:55,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477695429] [2023-11-24 23:57:55,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:55,520 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 [2023-11-24 23:57:55,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:57:55,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:57:55,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:57:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:55,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:57:55,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:55,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 23:57:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:55,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:57:55,665 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:57:55,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477695429] [2023-11-24 23:57:55,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477695429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:55,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:55,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:57:55,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411776691] [2023-11-24 23:57:55,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:55,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:55,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:57:55,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:55,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:55,670 INFO L87 Difference]: Start difference. First operand 1960 states and 3018 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:58:02,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:58:02,087 INFO L93 Difference]: Finished difference Result 3331 states and 5422 transitions. [2023-11-24 23:58:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:58:02,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-24 23:58:02,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:58:02,121 INFO L225 Difference]: With dead ends: 3331 [2023-11-24 23:58:02,121 INFO L226 Difference]: Without dead ends: 3331 [2023-11-24 23:58:02,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:58:02,124 INFO L413 NwaCegarLoop]: 2840 mSDtfsCounter, 1403 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:58:02,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 4824 Invalid, 1284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-24 23:58:02,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3331 states. [2023-11-24 23:58:02,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3331 to 3062. [2023-11-24 23:58:02,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 1539 states have (on average 2.0909681611436) internal successors, (3218), 3055 states have internal predecessors, (3218), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-24 23:58:02,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 5226 transitions. [2023-11-24 23:58:02,571 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 5226 transitions. Word has length 2 [2023-11-24 23:58:02,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:58:02,572 INFO L495 AbstractCegarLoop]: Abstraction has 3062 states and 5226 transitions. [2023-11-24 23:58:02,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:58:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 5226 transitions. [2023-11-24 23:58:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:58:02,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:02,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:58:02,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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)] Ended with exit code 0 [2023-11-24 23:58:02,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:58:02,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-24 23:58:02,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:02,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1114172565, now seen corresponding path program 1 times [2023-11-24 23:58:02,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:58:02,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651974821] [2023-11-24 23:58:02,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:02,784 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 [2023-11-24 23:58:02,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:58:02,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:58:02,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:58:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:03,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:58:03,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:58:03,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 23:58:03,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 23:58:03,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:58:03,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-24 23:58:03,231 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 23:58:03,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-24 23:58:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:58:03,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:58:03,262 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:58:03,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651974821] [2023-11-24 23:58:03,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651974821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:58:03,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:58:03,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:58:03,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489627986] [2023-11-24 23:58:03,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:58:03,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:58:03,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:58:03,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:58:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:58:03,266 INFO L87 Difference]: Start difference. First operand 3062 states and 5226 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:58:10,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:58:10,774 INFO L93 Difference]: Finished difference Result 3216 states and 5388 transitions. [2023-11-24 23:58:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:58:10,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-24 23:58:10,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:58:10,805 INFO L225 Difference]: With dead ends: 3216 [2023-11-24 23:58:10,805 INFO L226 Difference]: Without dead ends: 3216 [2023-11-24 23:58:10,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:58:10,807 INFO L413 NwaCegarLoop]: 2263 mSDtfsCounter, 4025 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:58:10,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 2324 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-24 23:58:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2023-11-24 23:58:11,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 1949. [2023-11-24 23:58:11,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 936 states have (on average 2.1346153846153846) internal successors, (1998), 1942 states have internal predecessors, (1998), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-24 23:58:11,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 3006 transitions. [2023-11-24 23:58:11,233 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 3006 transitions. Word has length 6 [2023-11-24 23:58:11,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:58:11,233 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 3006 transitions. [2023-11-24 23:58:11,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:58:11,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 3006 transitions. [2023-11-24 23:58:11,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:58:11,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:11,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:58:11,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:58:11,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:58:11,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-24 23:58:11,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:11,441 INFO L85 PathProgramCache]: Analyzing trace with hash 179611130, now seen corresponding path program 1 times [2023-11-24 23:58:11,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:58:11,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960371767] [2023-11-24 23:58:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:11,442 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 [2023-11-24 23:58:11,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:58:11,446 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:58:11,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b061045-a9d1-4af8-a05f-fd4be89cbce2/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:58:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:11,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:58:11,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:58:11,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 23:58:11,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:58:11,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:58:11,649 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:58:11,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960371767] [2023-11-24 23:58:11,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960371767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:58:11,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:58:11,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:58:11,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702572898] [2023-11-24 23:58:11,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:58:11,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:58:11,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:58:11,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:58:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:58:11,653 INFO L87 Difference]: Start difference. First operand 1949 states and 3006 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)