./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje --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 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:52:02,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:52:02,987 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 06:52:02,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:52:02,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:52:03,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:52:03,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:52:03,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:52:03,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:52:03,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:52:03,059 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:52:03,060 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:52:03,060 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:52:03,061 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:52:03,064 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:52:03,065 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:52:03,066 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:52:03,066 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:52:03,067 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:52:03,067 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:52:03,068 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:52:03,068 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:52:03,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:52:03,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:52:03,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:52:03,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:52:03,072 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:52:03,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:52:03,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:52:03,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:52:03,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:52:03,074 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:52:03,074 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:52:03,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:52:03,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:52:03,076 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:52:03,076 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:52:03,076 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:52:03,077 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:52:03,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:52:03,078 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:52:03,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:52:03,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:52:03,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:52:03,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:52:03,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:52:03,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:52:03,080 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:52:03,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:52:03,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:52:03,081 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:52:03,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:52:03,082 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_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 [2024-11-09 06:52:03,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:52:03,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:52:03,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:52:03,545 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:52:03,545 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:52:03,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i Unable to find full path for "g++" [2024-11-09 06:52:05,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:52:06,345 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:52:06,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2024-11-09 06:52:06,376 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/data/a5b244325/a5fbb904ed5444239d54411b9ac2e7d8/FLAG34a227dc2 [2024-11-09 06:52:06,572 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/data/a5b244325/a5fbb904ed5444239d54411b9ac2e7d8 [2024-11-09 06:52:06,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:52:06,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:52:06,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:52:06,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:52:06,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:52:06,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:52:06" (1/1) ... [2024-11-09 06:52:06,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a25b823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:06, skipping insertion in model container [2024-11-09 06:52:06,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:52:06" (1/1) ... [2024-11-09 06:52:06,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:52:07,358 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,427 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,437 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,446 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,469 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,492 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,494 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,497 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,500 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,501 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,503 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,509 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:07,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:52:07,585 ERROR L321 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) [2024-11-09 06:52:07,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@128d26ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:07, skipping insertion in model container [2024-11-09 06:52:07,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:52:07,588 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 06:52:07,591 INFO L158 Benchmark]: Toolchain (without parser) took 1009.91ms. Allocated memory is still 178.3MB. Free memory was 123.1MB in the beginning and 146.2MB in the end (delta: -23.1MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2024-11-09 06:52:07,592 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 123.7MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:52:07,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1003.91ms. Allocated memory is still 178.3MB. Free memory was 122.9MB in the beginning and 146.2MB in the end (delta: -23.3MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2024-11-09 06:52:07,596 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 123.7MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1003.91ms. Allocated memory is still 178.3MB. Free memory was 122.9MB in the beginning and 146.2MB in the end (delta: -23.3MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 764]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje --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 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:52:10,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:52:10,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 06:52:10,524 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:52:10,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:52:10,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:52:10,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:52:10,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:52:10,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:52:10,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:52:10,581 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:52:10,582 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:52:10,582 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:52:10,583 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:52:10,583 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:52:10,584 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:52:10,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:52:10,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:52:10,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:52:10,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:52:10,593 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:52:10,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:52:10,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:52:10,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:52:10,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:52:10,596 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:52:10,597 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:52:10,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:52:10,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:52:10,598 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:52:10,599 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:52:10,600 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:52:10,600 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:52:10,601 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:52:10,602 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:52:10,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:52:10,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:52:10,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:52:10,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:52:10,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:52:10,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:52:10,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:52:10,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:52:10,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:52:10,605 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:52:10,605 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:52:10,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:52:10,606 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:52:10,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 [2024-11-09 06:52:11,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:52:11,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:52:11,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:52:11,082 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:52:11,082 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:52:11,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i Unable to find full path for "g++" [2024-11-09 06:52:13,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:52:13,909 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:52:13,910 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2024-11-09 06:52:13,936 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/data/1907e194a/305f348415864d2c9585298d70dd63c8/FLAG769cd4332 [2024-11-09 06:52:14,107 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/data/1907e194a/305f348415864d2c9585298d70dd63c8 [2024-11-09 06:52:14,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:52:14,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:52:14,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:52:14,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:52:14,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:52:14,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:52:14" (1/1) ... [2024-11-09 06:52:14,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a92e09d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:14, skipping insertion in model container [2024-11-09 06:52:14,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:52:14" (1/1) ... [2024-11-09 06:52:14,235 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:52:14,903 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:14,964 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:14,975 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:14,984 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,002 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,041 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,047 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,050 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,052 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,055 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,062 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,072 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:52:15,106 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 06:52:15,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:52:15,167 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,189 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,192 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,196 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,204 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,218 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,220 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,223 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,224 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,226 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,227 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,233 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:52:15,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:52:15,242 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:52:15,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:52:15,448 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:52:15,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15 WrapperNode [2024-11-09 06:52:15,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:52:15,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:52:15,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:52:15,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:52:15,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,557 INFO L138 Inliner]: procedures = 179, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 769 [2024-11-09 06:52:15,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:52:15,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:52:15,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:52:15,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:52:15,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:52:15,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:52:15,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:52:15,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:52:15,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (1/1) ... [2024-11-09 06:52:15,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:52:15,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:52:15,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:52:15,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:52:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:52:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:52:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:52:15,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:52:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 06:52:15,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 06:52:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:52:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:52:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:52:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:52:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:52:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:52:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:52:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:52:15,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:52:16,104 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:52:16,107 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:52:22,385 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-09 06:52:22,386 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:52:22,412 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:52:22,415 INFO L316 CfgBuilder]: Removed 35 assume(true) statements. [2024-11-09 06:52:22,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:52:22 BoogieIcfgContainer [2024-11-09 06:52:22,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:52:22,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:52:22,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:52:22,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:52:22,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:52:14" (1/3) ... [2024-11-09 06:52:22,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc2f974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:52:22, skipping insertion in model container [2024-11-09 06:52:22,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:15" (2/3) ... [2024-11-09 06:52:22,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc2f974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:52:22, skipping insertion in model container [2024-11-09 06:52:22,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:52:22" (3/3) ... [2024-11-09 06:52:22,428 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-2.i [2024-11-09 06:52:22,450 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:52:22,451 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:52:22,526 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:52:22,533 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@44884c98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:52:22,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:52:22,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 149 states have (on average 1.6375838926174497) internal successors, (244), 161 states have internal predecessors, (244), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:52:22,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:52:22,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:22,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:22,560 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:52:22,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:22,568 INFO L85 PathProgramCache]: Analyzing trace with hash 546135827, now seen corresponding path program 1 times [2024-11-09 06:52:22,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:22,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056815366] [2024-11-09 06:52:22,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:22,582 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 [2024-11-09 06:52:22,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:22,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:22,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:22,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:52:22,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:22,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:22,846 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:22,850 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:22,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056815366] [2024-11-09 06:52:22,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056815366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:22,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:22,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:52:22,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962093513] [2024-11-09 06:52:22,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:22,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:52:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:22,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:52:22,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:22,914 INFO L87 Difference]: Start difference. First operand has 167 states, 149 states have (on average 1.6375838926174497) internal successors, (244), 161 states have internal predecessors, (244), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 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) [2024-11-09 06:52:23,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:23,272 INFO L93 Difference]: Finished difference Result 258 states and 348 transitions. [2024-11-09 06:52:23,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:52:23,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2024-11-09 06:52:23,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:23,287 INFO L225 Difference]: With dead ends: 258 [2024-11-09 06:52:23,288 INFO L226 Difference]: Without dead ends: 256 [2024-11-09 06:52:23,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:23,294 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 113 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:23,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 444 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:52:23,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-09 06:52:23,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 166. [2024-11-09 06:52:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 149 states have (on average 1.3557046979865772) internal successors, (202), 160 states have internal predecessors, (202), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:52:23,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2024-11-09 06:52:23,366 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 228 transitions. Word has length 11 [2024-11-09 06:52:23,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:23,366 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 228 transitions. [2024-11-09 06:52:23,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2024-11-09 06:52:23,367 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 228 transitions. [2024-11-09 06:52:23,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:52:23,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:23,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:23,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:23,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:23,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:52:23,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:23,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2007025188, now seen corresponding path program 1 times [2024-11-09 06:52:23,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:23,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078588995] [2024-11-09 06:52:23,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:23,576 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 [2024-11-09 06:52:23,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:23,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:23,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:24,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:52:24,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:24,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:24,151 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:24,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078588995] [2024-11-09 06:52:24,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078588995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:24,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:24,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:52:24,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6706785] [2024-11-09 06:52:24,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:24,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:52:24,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:52:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:52:24,156 INFO L87 Difference]: Start difference. First operand 166 states and 228 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-09 06:52:24,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:24,368 INFO L93 Difference]: Finished difference Result 168 states and 221 transitions. [2024-11-09 06:52:24,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:52:24,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 67 [2024-11-09 06:52:24,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:24,371 INFO L225 Difference]: With dead ends: 168 [2024-11-09 06:52:24,371 INFO L226 Difference]: Without dead ends: 168 [2024-11-09 06:52:24,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:52:24,373 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 30 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:24,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 563 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:52:24,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-09 06:52:24,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-11-09 06:52:24,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 151 states have (on average 1.2913907284768211) internal successors, (195), 162 states have internal predecessors, (195), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:52:24,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 221 transitions. [2024-11-09 06:52:24,388 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 221 transitions. Word has length 67 [2024-11-09 06:52:24,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:24,389 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 221 transitions. [2024-11-09 06:52:24,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-09 06:52:24,390 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 221 transitions. [2024-11-09 06:52:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:52:24,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:24,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:24,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:24,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:24,593 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:52:24,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:24,594 INFO L85 PathProgramCache]: Analyzing trace with hash 246635216, now seen corresponding path program 1 times [2024-11-09 06:52:24,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:24,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343392265] [2024-11-09 06:52:24,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:24,596 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 [2024-11-09 06:52:24,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:24,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:24,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:25,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:52:25,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:25,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:52:25,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:25,864 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:25,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343392265] [2024-11-09 06:52:25,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343392265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:25,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:25,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:52:25,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758896031] [2024-11-09 06:52:25,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:25,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:52:25,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:25,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:52:25,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:25,873 INFO L87 Difference]: Start difference. First operand 168 states and 221 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-09 06:52:26,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:26,707 INFO L93 Difference]: Finished difference Result 241 states and 308 transitions. [2024-11-09 06:52:26,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:52:26,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-11-09 06:52:26,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:26,717 INFO L225 Difference]: With dead ends: 241 [2024-11-09 06:52:26,717 INFO L226 Difference]: Without dead ends: 241 [2024-11-09 06:52:26,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:52:26,719 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 43 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:26,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 431 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:52:26,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-09 06:52:26,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 210. [2024-11-09 06:52:26,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 193 states have (on average 1.2487046632124352) internal successors, (241), 204 states have internal predecessors, (241), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:52:26,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 267 transitions. [2024-11-09 06:52:26,736 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 267 transitions. Word has length 67 [2024-11-09 06:52:26,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:26,737 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 267 transitions. [2024-11-09 06:52:26,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-09 06:52:26,737 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 267 transitions. [2024-11-09 06:52:26,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 06:52:26,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:26,741 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:26,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:26,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:26,946 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:52:26,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:26,947 INFO L85 PathProgramCache]: Analyzing trace with hash 426893376, now seen corresponding path program 1 times [2024-11-09 06:52:26,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:26,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864627125] [2024-11-09 06:52:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:26,949 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 [2024-11-09 06:52:26,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:26,954 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:26,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:27,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:52:27,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:27,679 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:27,679 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:27,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864627125] [2024-11-09 06:52:27,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864627125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:27,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:27,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:52:27,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732987973] [2024-11-09 06:52:27,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:27,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:52:27,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:27,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:52:27,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:52:27,701 INFO L87 Difference]: Start difference. First operand 210 states and 267 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:52:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:27,765 INFO L93 Difference]: Finished difference Result 213 states and 271 transitions. [2024-11-09 06:52:27,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:52:27,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 82 [2024-11-09 06:52:27,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:27,769 INFO L225 Difference]: With dead ends: 213 [2024-11-09 06:52:27,771 INFO L226 Difference]: Without dead ends: 213 [2024-11-09 06:52:27,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:52:27,773 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 0 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:27,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 626 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:52:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-09 06:52:27,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-09 06:52:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 195 states have (on average 1.2512820512820513) internal successors, (244), 207 states have internal predecessors, (244), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-09 06:52:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 271 transitions. [2024-11-09 06:52:27,795 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 271 transitions. Word has length 82 [2024-11-09 06:52:27,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:27,795 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 271 transitions. [2024-11-09 06:52:27,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:52:27,796 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 271 transitions. [2024-11-09 06:52:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:52:27,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:27,799 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:27,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:52:28,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:28,000 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:52:28,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash 542841054, now seen corresponding path program 1 times [2024-11-09 06:52:28,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:28,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649812534] [2024-11-09 06:52:28,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:28,003 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 [2024-11-09 06:52:28,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:28,007 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:28,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 06:52:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:28,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:52:28,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:52:28,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:52:28,817 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:28,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649812534] [2024-11-09 06:52:28,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649812534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:28,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1557986205] [2024-11-09 06:52:28,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:28,818 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:52:28,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:52:28,822 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:52:28,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 06:52:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:29,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:52:29,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 06:52:30,024 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:30,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1557986205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:30,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:52:30,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 06:52:30,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294998701] [2024-11-09 06:52:30,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:30,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:52:30,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:30,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:52:30,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:52:30,027 INFO L87 Difference]: Start difference. First operand 213 states and 271 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:52:32,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:52:34,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:52:37,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:37,171 INFO L93 Difference]: Finished difference Result 309 states and 407 transitions. [2024-11-09 06:52:37,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:52:37,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-09 06:52:37,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:37,174 INFO L225 Difference]: With dead ends: 309 [2024-11-09 06:52:37,174 INFO L226 Difference]: Without dead ends: 309 [2024-11-09 06:52:37,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:52:37,176 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 336 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 25 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:37,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 426 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 97 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2024-11-09 06:52:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-09 06:52:37,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 217. [2024-11-09 06:52:37,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 199 states have (on average 1.236180904522613) internal successors, (246), 211 states have internal predecessors, (246), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-09 06:52:37,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 273 transitions. [2024-11-09 06:52:37,193 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 273 transitions. Word has length 84 [2024-11-09 06:52:37,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:37,194 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 273 transitions. [2024-11-09 06:52:37,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:52:37,194 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 273 transitions. [2024-11-09 06:52:37,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 06:52:37,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:37,197 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:37,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-09 06:52:37,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:52:37,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:37,599 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:52:37,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:37,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1570641444, now seen corresponding path program 1 times [2024-11-09 06:52:37,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:37,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005918644] [2024-11-09 06:52:37,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:37,601 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 [2024-11-09 06:52:37,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:37,604 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:37,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 (8)] Waiting until timeout for monitored process [2024-11-09 06:52:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:38,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:52:38,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:52:38,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:38,410 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:52:38,410 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:38,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005918644] [2024-11-09 06:52:38,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005918644] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:38,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [977679409] [2024-11-09 06:52:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:38,412 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:52:38,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:52:38,415 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:52:38,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-09 06:52:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:39,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:52:39,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:39,314 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:52:39,315 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:39,385 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:52:39,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [977679409] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:39,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759501498] [2024-11-09 06:52:39,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:39,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:52:39,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:52:39,388 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:52:39,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 06:52:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:39,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:52:39,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:40,276 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 06:52:40,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 06:52:40,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759501498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:40,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:52:40,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 4, 4] total 12 [2024-11-09 06:52:40,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144907297] [2024-11-09 06:52:40,696 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:52:40,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:52:40,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:40,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:52:40,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:52:40,699 INFO L87 Difference]: Start difference. First operand 217 states and 273 transitions. Second operand has 12 states, 12 states have (on average 17.833333333333332) internal successors, (214), 12 states have internal predecessors, (214), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 06:52:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:42,066 INFO L93 Difference]: Finished difference Result 438 states and 548 transitions. [2024-11-09 06:52:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:52:42,067 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.833333333333332) internal successors, (214), 12 states have internal predecessors, (214), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 85 [2024-11-09 06:52:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:42,070 INFO L225 Difference]: With dead ends: 438 [2024-11-09 06:52:42,071 INFO L226 Difference]: Without dead ends: 438 [2024-11-09 06:52:42,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:52:42,072 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 357 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:42,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1852 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:52:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-09 06:52:42,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 436. [2024-11-09 06:52:42,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 414 states have (on average 1.2246376811594204) internal successors, (507), 426 states have internal predecessors, (507), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (20), 7 states have call predecessors, (20), 16 states have call successors, (20) [2024-11-09 06:52:42,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 543 transitions. [2024-11-09 06:52:42,096 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 543 transitions. Word has length 85 [2024-11-09 06:52:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:42,102 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 543 transitions. [2024-11-09 06:52:42,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.833333333333332) internal successors, (214), 12 states have internal predecessors, (214), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 06:52:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 543 transitions. [2024-11-09 06:52:42,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-09 06:52:42,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:42,129 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:42,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 (8)] Ended with exit code 0 [2024-11-09 06:52:42,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-09 06:52:42,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 06:52:42,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:52:42,730 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:52:42,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:42,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1125263069, now seen corresponding path program 1 times [2024-11-09 06:52:42,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:42,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886291374] [2024-11-09 06:52:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:42,734 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 [2024-11-09 06:52:42,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:42,736 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:42,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 (11)] Waiting until timeout for monitored process [2024-11-09 06:52:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:44,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:52:44,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:44,382 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 133 proven. 10 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-09 06:52:44,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:44,784 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 115 proven. 27 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-09 06:52:44,784 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:44,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886291374] [2024-11-09 06:52:44,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886291374] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:44,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [870435062] [2024-11-09 06:52:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:44,785 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:52:44,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:52:44,789 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:52:44,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-09 06:52:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:47,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:52:47,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 133 proven. 10 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-09 06:52:47,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 115 proven. 27 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-09 06:52:47,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [870435062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:47,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35295865] [2024-11-09 06:52:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:47,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:52:47,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:52:47,485 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:52:47,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 06:52:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:49,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:52:49,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 132 proven. 3 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-09 06:52:49,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 132 proven. 3 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-09 06:52:49,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35295865] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:49,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:52:49,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 6, 6] total 20 [2024-11-09 06:52:49,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967309194] [2024-11-09 06:52:49,517 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:52:49,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 06:52:49,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:49,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 06:52:49,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:52:49,520 INFO L87 Difference]: Start difference. First operand 436 states and 543 transitions. Second operand has 20 states, 20 states have (on average 7.2) internal successors, (144), 20 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 06:52:51,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:51,066 INFO L93 Difference]: Finished difference Result 458 states and 580 transitions. [2024-11-09 06:52:51,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 06:52:51,068 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.2) internal successors, (144), 20 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 257 [2024-11-09 06:52:51,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:51,075 INFO L225 Difference]: With dead ends: 458 [2024-11-09 06:52:51,076 INFO L226 Difference]: Without dead ends: 452 [2024-11-09 06:52:51,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1555 GetRequests, 1518 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=403, Invalid=1079, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:52:51,080 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 23 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:51,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2246 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:52:51,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-09 06:52:51,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 448. [2024-11-09 06:52:51,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 426 states have (on average 1.227699530516432) internal successors, (523), 438 states have internal predecessors, (523), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (20), 7 states have call predecessors, (20), 16 states have call successors, (20) [2024-11-09 06:52:51,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 559 transitions. [2024-11-09 06:52:51,127 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 559 transitions. Word has length 257 [2024-11-09 06:52:51,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:51,128 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 559 transitions. [2024-11-09 06:52:51,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.2) internal successors, (144), 20 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 06:52:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 559 transitions. [2024-11-09 06:52:51,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-09 06:52:51,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:51,143 INFO L215 NwaCegarLoop]: trace histogram [18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:51,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-09 06:52:51,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 06:52:51,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:52:51,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:52:51,744 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:52:51,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:51,745 INFO L85 PathProgramCache]: Analyzing trace with hash -662939933, now seen corresponding path program 2 times [2024-11-09 06:52:51,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:51,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047854586] [2024-11-09 06:52:51,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:52:51,746 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 [2024-11-09 06:52:51,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:51,748 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:52:51,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 (14)] Waiting until timeout for monitored process [2024-11-09 06:52:53,366 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:52:53,367 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:52:53,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:52:53,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 217 proven. 55 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-09 06:52:53,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 115 proven. 156 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 06:52:54,927 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:54,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047854586] [2024-11-09 06:52:54,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047854586] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:54,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [86007283] [2024-11-09 06:52:54,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:52:54,928 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:52:54,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:52:54,929 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:52:54,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-09 06:52:57,677 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:52:57,678 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:52:57,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:52:57,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 217 proven. 55 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-09 06:52:57,833 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 115 proven. 156 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 06:52:58,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [86007283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:58,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227710923] [2024-11-09 06:52:58,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:52:58,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:52:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:52:58,102 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:52:58,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 06:52:59,625 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:52:59,625 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:52:59,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:52:59,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-09 06:53:01,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:53:02,698 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-09 06:53:02,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227710923] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:53:02,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:53:02,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 7, 7] total 36 [2024-11-09 06:53:02,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501813331] [2024-11-09 06:53:02,699 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:53:02,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-09 06:53:02,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:02,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-09 06:53:02,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1022, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:53:02,705 INFO L87 Difference]: Start difference. First operand 448 states and 559 transitions. Second operand has 36 states, 36 states have (on average 16.88888888888889) internal successors, (608), 36 states have internal predecessors, (608), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 06:53:15,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:15,480 INFO L93 Difference]: Finished difference Result 979 states and 1214 transitions. [2024-11-09 06:53:15,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 06:53:15,481 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 16.88888888888889) internal successors, (608), 36 states have internal predecessors, (608), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 269 [2024-11-09 06:53:15,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:15,486 INFO L225 Difference]: With dead ends: 979 [2024-11-09 06:53:15,486 INFO L226 Difference]: Without dead ends: 975 [2024-11-09 06:53:15,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1637 GetRequests, 1578 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 06:53:15,489 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 1225 mSDsluCounter, 10564 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 11153 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:15,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 11153 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2024-11-09 06:53:15,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-11-09 06:53:15,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 973. [2024-11-09 06:53:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 945 states have (on average 1.2010582010582012) internal successors, (1135), 957 states have internal predecessors, (1135), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (32), 13 states have call predecessors, (32), 22 states have call successors, (32) [2024-11-09 06:53:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1189 transitions. [2024-11-09 06:53:15,526 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1189 transitions. Word has length 269 [2024-11-09 06:53:15,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:15,527 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1189 transitions. [2024-11-09 06:53:15,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 16.88888888888889) internal successors, (608), 36 states have internal predecessors, (608), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 06:53:15,528 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1189 transitions. [2024-11-09 06:53:15,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2024-11-09 06:53:15,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:15,552 INFO L215 NwaCegarLoop]: trace histogram [33, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:15,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-09 06:53:15,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 (14)] Ended with exit code 0 [2024-11-09 06:53:15,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-09 06:53:16,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:16,154 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:53:16,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:16,154 INFO L85 PathProgramCache]: Analyzing trace with hash 162492483, now seen corresponding path program 3 times [2024-11-09 06:53:16,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:16,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784153748] [2024-11-09 06:53:16,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:53:16,157 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 [2024-11-09 06:53:16,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:16,159 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:53:16,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8cfe049-79b8-4552-80e3-c15cf29056ba/bin/utaipan-verify-YMUCfTKeje/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 (17)] Waiting until timeout for monitored process