./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 527bcce2 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_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb5220aa49e6d5ce07adbf2b5e67e7c8f277342987ef62ca05a827d2ae217f75 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:55:39,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:55:39,985 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-21 19:55:39,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:55:39,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:55:40,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:55:40,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:55:40,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:55:40,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:55:40,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:55:40,037 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:55:40,037 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:55:40,038 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:55:40,038 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:55:40,039 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:55:40,039 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:55:40,040 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:55:40,041 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:55:40,041 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:55:40,042 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:55:40,042 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:55:40,043 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:55:40,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:55:40,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:55:40,045 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:55:40,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:55:40,046 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:55:40,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:55:40,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:55:40,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:55:40,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:55:40,049 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 19:55:40,049 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 19:55:40,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:55:40,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:55:40,050 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:55:40,051 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:55:40,051 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:55:40,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:55:40,052 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:55:40,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:55:40,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:55:40,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:55:40,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:55:40,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:55:40,055 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:55:40,055 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:55:40,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:55:40,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:55:40,056 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:55:40,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:55:40,057 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_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb5220aa49e6d5ce07adbf2b5e67e7c8f277342987ef62ca05a827d2ae217f75 [2023-11-21 19:55:40,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:55:40,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:55:40,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:55:40,407 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:55:40,407 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:55:40,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2023-11-21 19:55:43,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:55:44,000 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:55:44,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2023-11-21 19:55:44,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/data/7e06a4b57/e3941b1a7f064e8d9d445b3d0a953056/FLAG452fedd9f [2023-11-21 19:55:44,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/data/7e06a4b57/e3941b1a7f064e8d9d445b3d0a953056 [2023-11-21 19:55:44,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:55:44,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:55:44,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:55:44,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:55:44,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:55:44,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:55:44" (1/1) ... [2023-11-21 19:55:44,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794265e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:44, skipping insertion in model container [2023-11-21 19:55:44,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:55:44" (1/1) ... [2023-11-21 19:55:44,150 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:55:44,522 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:55:44,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:55:44,915 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) [2023-11-21 19:55:44,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73f787d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:44, skipping insertion in model container [2023-11-21 19:55:44,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:55:44,918 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 19:55:44,921 INFO L158 Benchmark]: Toolchain (without parser) took 862.26ms. Allocated memory is still 136.3MB. Free memory was 88.7MB in the beginning and 68.2MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 19:55:44,922 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:55:44,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 858.71ms. Allocated memory is still 136.3MB. Free memory was 88.5MB in the beginning and 68.2MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 19:55:44,925 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 858.71ms. Allocated memory is still 136.3MB. Free memory was 88.5MB in the beginning and 68.2MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 739]: 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_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb5220aa49e6d5ce07adbf2b5e67e7c8f277342987ef62ca05a827d2ae217f75 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:55:47,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:55:47,848 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-21 19:55:47,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:55:47,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:55:47,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:55:47,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:55:47,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:55:47,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:55:47,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:55:47,920 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:55:47,920 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:55:47,921 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:55:47,923 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:55:47,924 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:55:47,924 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:55:47,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:55:47,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:55:47,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:55:47,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:55:47,928 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:55:47,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:55:47,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:55:47,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:55:47,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:55:47,932 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 19:55:47,932 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 19:55:47,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:55:47,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:55:47,934 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:55:47,936 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:55:47,936 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:55:47,937 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:55:47,937 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:55:47,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:55:47,938 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:55:47,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:55:47,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:55:47,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:55:47,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:55:47,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:55:47,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:55:47,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:55:47,942 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:55:47,943 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:55:47,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:55:47,943 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:55:47,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:55:47,944 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_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb5220aa49e6d5ce07adbf2b5e67e7c8f277342987ef62ca05a827d2ae217f75 [2023-11-21 19:55:48,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:55:48,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:55:48,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:55:48,458 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:55:48,458 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:55:48,460 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2023-11-21 19:55:51,613 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:55:52,082 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:55:52,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2023-11-21 19:55:52,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/data/4ec38cb65/ee08555dbbbf4c63ba8aefcc888a944e/FLAG10e50e4f4 [2023-11-21 19:55:52,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/data/4ec38cb65/ee08555dbbbf4c63ba8aefcc888a944e [2023-11-21 19:55:52,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:55:52,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:55:52,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:55:52,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:55:52,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:55:52,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:55:52" (1/1) ... [2023-11-21 19:55:52,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60415d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:52, skipping insertion in model container [2023-11-21 19:55:52,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:55:52" (1/1) ... [2023-11-21 19:55:52,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:55:52,609 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:55:53,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:55:53,033 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 19:55:53,053 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:55:53,064 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:55:53,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:55:53,185 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:55:53,216 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:55:53,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:55:53,405 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:55:53,405 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:55:53,414 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:55:53,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53 WrapperNode [2023-11-21 19:55:53,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:55:53,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:55:53,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:55:53,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:55:53,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,550 INFO L138 Inliner]: procedures = 181, calls = 334, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1174 [2023-11-21 19:55:53,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:55:53,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:55:53,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:55:53,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:55:53,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:55:53,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:55:53,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:55:53,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:55:53,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (1/1) ... [2023-11-21 19:55:53,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:55:53,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:55:53,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:55:53,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:55:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 19:55:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 19:55:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 19:55:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 19:55:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:55:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:55:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:55:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:55:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:55:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:55:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 19:55:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:55:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 19:55:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:55:53,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:55:53,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:55:53,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:55:54,104 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:55:54,106 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:56:01,304 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:56:02,099 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:56:02,100 INFO L308 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-21 19:56:02,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:56:02 BoogieIcfgContainer [2023-11-21 19:56:02,103 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:56:02,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:56:02,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:56:02,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:56:02,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:55:52" (1/3) ... [2023-11-21 19:56:02,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c844016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:56:02, skipping insertion in model container [2023-11-21 19:56:02,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:53" (2/3) ... [2023-11-21 19:56:02,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c844016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:56:02, skipping insertion in model container [2023-11-21 19:56:02,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:56:02" (3/3) ... [2023-11-21 19:56:02,117 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test3-2.i [2023-11-21 19:56:02,139 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:56:02,139 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 19:56:02,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:56:02,221 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;@16592e03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:56:02,221 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 19:56:02,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 131 states have (on average 1.7328244274809161) internal successors, (227), 134 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 19:56:02,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 19:56:02,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:56:02,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 19:56:02,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 19:56:02,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:56:02,248 INFO L85 PathProgramCache]: Analyzing trace with hash 943101, now seen corresponding path program 1 times [2023-11-21 19:56:02,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:56:02,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493367361] [2023-11-21 19:56:02,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:56:02,266 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 [2023-11-21 19:56:02,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:56:02,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:56:02,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:56:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:56:02,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 19:56:02,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:56:02,677 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_27| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_27|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_27| (_ bv0 1))))) is different from true [2023-11-21 19:56:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:56:02,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:56:02,680 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:56:02,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493367361] [2023-11-21 19:56:02,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493367361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:56:02,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:56:02,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:56:02,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134005600] [2023-11-21 19:56:02,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:56:02,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:56:02,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:56:02,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:56:02,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-21 19:56:02,730 INFO L87 Difference]: Start difference. First operand has 141 states, 131 states have (on average 1.7328244274809161) internal successors, (227), 134 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-21 19:56:06,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:08,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:13,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:15,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:17,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:19,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:19,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:56:19,148 INFO L93 Difference]: Finished difference Result 215 states and 258 transitions. [2023-11-21 19:56:19,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:56:19,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-21 19:56:19,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:56:19,161 INFO L225 Difference]: With dead ends: 215 [2023-11-21 19:56:19,161 INFO L226 Difference]: Without dead ends: 213 [2023-11-21 19:56:19,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-21 19:56:19,166 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 83 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 259 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-11-21 19:56:19,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 260 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 5 Unknown, 259 Unchecked, 16.4s Time] [2023-11-21 19:56:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-21 19:56:19,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 139. [2023-11-21 19:56:19,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 130 states have (on average 1.176923076923077) internal successors, (153), 132 states have internal predecessors, (153), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 19:56:19,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 163 transitions. [2023-11-21 19:56:19,245 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 163 transitions. Word has length 3 [2023-11-21 19:56:19,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:56:19,246 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 163 transitions. [2023-11-21 19:56:19,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-21 19:56:19,248 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 163 transitions. [2023-11-21 19:56:19,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 19:56:19,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:56:19,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:56:19,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 19:56:19,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:56:19,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 19:56:19,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:56:19,453 INFO L85 PathProgramCache]: Analyzing trace with hash 457354548, now seen corresponding path program 1 times [2023-11-21 19:56:19,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:56:19,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83610419] [2023-11-21 19:56:19,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:56:19,454 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 [2023-11-21 19:56:19,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:56:19,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:56:19,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:56:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:56:19,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 19:56:19,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:56:19,951 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_28| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_28| (_ bv0 1)) |c_#valid|) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_28|) (_ bv0 1)))) is different from true [2023-11-21 19:56:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:56:19,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:56:19,953 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:56:19,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83610419] [2023-11-21 19:56:19,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83610419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:56:19,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:56:19,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:56:19,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701240421] [2023-11-21 19:56:19,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:56:19,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:56:19,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:56:19,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:56:19,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-21 19:56:19,956 INFO L87 Difference]: Start difference. First operand 139 states and 163 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-21 19:56:25,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:27,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:29,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:31,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:33,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:35,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:35,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:56:35,615 INFO L93 Difference]: Finished difference Result 214 states and 255 transitions. [2023-11-21 19:56:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:56:35,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2023-11-21 19:56:35,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:56:35,621 INFO L225 Difference]: With dead ends: 214 [2023-11-21 19:56:35,621 INFO L226 Difference]: Without dead ends: 213 [2023-11-21 19:56:35,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-21 19:56:35,623 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 75 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:56:35,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 260 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 5 Unknown, 254 Unchecked, 15.6s Time] [2023-11-21 19:56:35,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-21 19:56:35,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 185. [2023-11-21 19:56:35,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 174 states have (on average 1.1954022988505748) internal successors, (208), 176 states have internal predecessors, (208), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-21 19:56:35,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 222 transitions. [2023-11-21 19:56:35,641 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 222 transitions. Word has length 11 [2023-11-21 19:56:35,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:56:35,642 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 222 transitions. [2023-11-21 19:56:35,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-21 19:56:35,642 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 222 transitions. [2023-11-21 19:56:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 19:56:35,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:56:35,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:56:35,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-21 19:56:35,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:56:35,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 19:56:35,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:56:35,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1166845765, now seen corresponding path program 1 times [2023-11-21 19:56:35,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:56:35,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166903684] [2023-11-21 19:56:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:56:35,849 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 [2023-11-21 19:56:35,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:56:35,850 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:56:35,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b9a380-aeda-4fc3-b8bc-48fe1bed4ca6/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:56:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:56:36,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:56:36,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:56:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:56:36,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:56:36,286 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:56:36,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166903684] [2023-11-21 19:56:36,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166903684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:56:36,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:56:36,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:56:36,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705679285] [2023-11-21 19:56:36,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:56:36,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:56:36,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:56:36,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:56:36,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:56:36,290 INFO L87 Difference]: Start difference. First operand 185 states and 222 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:56:38,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:41,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:42,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []