./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E --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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:44:37,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:44:37,952 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-13 23:44:37,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:44:37,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:44:38,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:44:38,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:44:38,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:44:38,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:44:38,008 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:44:38,008 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:44:38,009 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:44:38,009 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:44:38,010 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:44:38,010 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:44:38,010 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:44:38,010 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:44:38,010 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:44:38,010 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:44:38,010 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:44:38,010 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:44:38,010 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:44:38,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:44:38,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:44:38,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:44:38,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:44:38,011 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:44:38,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:44:38,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:44:38,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:44:38,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:44:38,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:44:38,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:44:38,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:44:38,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:38,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:44:38,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:44:38,015 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:44:38,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:44:38,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:44:38,016 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:44:38,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:44:38,017 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E 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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-13 23:44:38,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:44:38,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:44:38,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:44:38,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:44:38,354 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:44:38,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i Unable to find full path for "g++" [2024-11-13 23:44:40,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:44:40,927 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:44:40,928 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2024-11-13 23:44:40,949 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/data/a7c56438c/da7ac2794b6e4d55a2aa3a715cba6c3b/FLAG29e8bed68 [2024-11-13 23:44:40,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/data/a7c56438c/da7ac2794b6e4d55a2aa3a715cba6c3b [2024-11-13 23:44:40,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:44:40,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:44:40,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:40,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:44:40,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:44:40,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:40" (1/1) ... [2024-11-13 23:44:40,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d84192f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:40, skipping insertion in model container [2024-11-13 23:44:40,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:40" (1/1) ... [2024-11-13 23:44:41,038 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:44:41,531 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,572 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,578 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,582 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,592 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,649 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,651 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,657 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,658 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,662 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,663 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,664 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,665 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,672 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:41,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:41,695 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) [2024-11-13 23:44:41,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2cf4195e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:41, skipping insertion in model container [2024-11-13 23:44:41,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:41,698 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 23:44:41,700 INFO L158 Benchmark]: Toolchain (without parser) took 728.54ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 72.5MB in the end (delta: 19.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:44:41,701 INFO L158 Benchmark]: CDTParser took 1.58ms. Allocated memory is still 167.8MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:44:41,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 725.63ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 72.5MB in the end (delta: 18.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:44:41,702 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.58ms. Allocated memory is still 167.8MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 725.63ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 72.5MB in the end (delta: 18.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E --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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:44:44,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:44:44,609 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-13 23:44:44,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:44:44,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:44:44,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:44:44,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:44:44,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:44:44,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:44:44,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:44:44,651 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:44:44,651 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:44:44,651 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:44:44,651 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:44:44,652 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:44:44,653 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:44:44,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:44:44,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:44:44,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:44:44,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:44:44,654 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:44:44,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:44:44,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:44:44,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:44:44,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:44:44,655 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 23:44:44,655 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 23:44:44,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:44:44,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:44:44,655 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:44:44,655 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:44:44,655 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:44:44,656 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:44:44,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:44:44,656 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:44:44,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:44:44,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:44:44,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:44:44,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:44:44,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:44:44,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:44:44,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:44,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:44:44,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:44:44,658 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:44:44,658 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:44:44,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:44:44,658 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:44:44,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E 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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2024-11-13 23:44:45,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:44:45,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:44:45,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:44:45,094 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:44:45,094 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:44:45,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i Unable to find full path for "g++" [2024-11-13 23:44:47,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:44:47,645 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:44:47,648 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2024-11-13 23:44:47,671 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/data/e6a908ce3/d8596ef69a804a4e9eaf265085f6a715/FLAG1cd0e69d0 [2024-11-13 23:44:47,694 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/data/e6a908ce3/d8596ef69a804a4e9eaf265085f6a715 [2024-11-13 23:44:47,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:44:47,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:44:47,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:47,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:44:47,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:44:47,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fa04de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:47, skipping insertion in model container [2024-11-13 23:44:47,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:47" (1/1) ... [2024-11-13 23:44:47,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:44:48,393 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,443 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,449 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,454 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,464 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,513 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,513 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,517 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,518 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,522 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,524 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,525 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,527 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,533 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:48,555 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 23:44:48,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:44:48,607 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,632 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,636 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,640 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,647 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,704 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,708 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,712 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,715 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,718 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,720 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,722 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,723 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,736 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:48,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:48,747 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:44:48,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:48,949 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:44:48,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48 WrapperNode [2024-11-13 23:44:48,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:48,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:48,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:44:48,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:44:48,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:48,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,083 INFO L138 Inliner]: procedures = 180, calls = 274, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 996 [2024-11-13 23:44:49,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:49,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:44:49,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:44:49,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:44:49,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:44:49,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:44:49,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:44:49,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:44:49,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (1/1) ... [2024-11-13 23:44:49,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:49,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:49,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:44:49,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:44:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-13 23:44:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 23:44:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 23:44:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 23:44:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-13 23:44:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-13 23:44:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 23:44:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:44:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 23:44:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:44:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 23:44:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 23:44:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:44:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:44:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:44:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:44:49,628 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:44:49,631 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:44:56,910 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-13 23:44:56,911 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:44:56,926 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:44:56,926 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-13 23:44:56,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:56 BoogieIcfgContainer [2024-11-13 23:44:56,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:44:56,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:44:56,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:44:56,936 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:44:56,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:44:47" (1/3) ... [2024-11-13 23:44:56,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c67aa5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:56, skipping insertion in model container [2024-11-13 23:44:56,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:48" (2/3) ... [2024-11-13 23:44:56,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c67aa5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:56, skipping insertion in model container [2024-11-13 23:44:56,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:56" (3/3) ... [2024-11-13 23:44:56,939 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-1.i [2024-11-13 23:44:56,955 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:44:56,957 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_nondet_test3-1.i that has 3 procedures, 201 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2024-11-13 23:44:57,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:44:57,028 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;@7cd72b51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:44:57,029 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 23:44:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 191 states have (on average 1.6649214659685865) internal successors, (318), 194 states have internal predecessors, (318), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:44:57,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 23:44:57,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:57,043 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 23:44:57,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:44:57,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:57,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1172624, now seen corresponding path program 1 times [2024-11-13 23:44:57,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:44:57,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341937720] [2024-11-13 23:44:57,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:57,064 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 [2024-11-13 23:44:57,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:44:57,070 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:44:57,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:44:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:57,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:44:57,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:57,395 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-13 23:44:57,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:57,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:57,405 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:44:57,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341937720] [2024-11-13 23:44:57,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341937720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:57,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:57,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:57,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197063406] [2024-11-13 23:44:57,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:57,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:44:57,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:44:57,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:44:57,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 23:44:57,455 INFO L87 Difference]: Start difference. First operand has 201 states, 191 states have (on average 1.6649214659685865) internal successors, (318), 194 states have internal predecessors, (318), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-13 23:44:59,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:00,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:00,692 INFO L93 Difference]: Finished difference Result 295 states and 386 transitions. [2024-11-13 23:45:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:45:00,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2024-11-13 23:45:00,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:00,712 INFO L225 Difference]: With dead ends: 295 [2024-11-13 23:45:00,713 INFO L226 Difference]: Without dead ends: 292 [2024-11-13 23:45:00,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 23:45:00,718 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 120 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 387 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:00,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 486 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 387 Unchecked, 3.2s Time] [2024-11-13 23:45:00,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-13 23:45:00,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 198. [2024-11-13 23:45:00,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 189 states have (on average 1.2962962962962963) internal successors, (245), 191 states have internal predecessors, (245), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:45:00,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 255 transitions. [2024-11-13 23:45:00,800 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 255 transitions. Word has length 4 [2024-11-13 23:45:00,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:00,801 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 255 transitions. [2024-11-13 23:45:00,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-13 23:45:00,801 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 255 transitions. [2024-11-13 23:45:00,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 23:45:00,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:00,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:00,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-13 23:45:01,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:01,003 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:01,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:01,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1933105580, now seen corresponding path program 1 times [2024-11-13 23:45:01,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:01,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389863691] [2024-11-13 23:45:01,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:01,005 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 [2024-11-13 23:45:01,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:01,007 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:01,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:01,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:45:01,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:01,455 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-13 23:45:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:01,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:01,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:01,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389863691] [2024-11-13 23:45:01,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389863691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:01,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:01,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:45:01,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526278600] [2024-11-13 23:45:01,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:01,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:45:01,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:01,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:45:01,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 23:45:01,462 INFO L87 Difference]: Start difference. First operand 198 states and 255 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-13 23:45:03,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:05,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:05,705 INFO L93 Difference]: Finished difference Result 293 states and 382 transitions. [2024-11-13 23:45:05,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:45:05,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-11-13 23:45:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:05,717 INFO L225 Difference]: With dead ends: 293 [2024-11-13 23:45:05,717 INFO L226 Difference]: Without dead ends: 291 [2024-11-13 23:45:05,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 23:45:05,718 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 112 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 381 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:05,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 483 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 381 Unchecked, 4.2s Time] [2024-11-13 23:45:05,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-13 23:45:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 267. [2024-11-13 23:45:05,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 256 states have (on average 1.3046875) internal successors, (334), 258 states have internal predecessors, (334), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 23:45:05,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 348 transitions. [2024-11-13 23:45:05,736 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 348 transitions. Word has length 12 [2024-11-13 23:45:05,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:05,736 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 348 transitions. [2024-11-13 23:45:05,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-13 23:45:05,736 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 348 transitions. [2024-11-13 23:45:05,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 23:45:05,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:05,737 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:05,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:05,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:05,941 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:05,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:05,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2141012922, now seen corresponding path program 1 times [2024-11-13 23:45:05,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:05,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387738975] [2024-11-13 23:45:05,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:05,943 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 [2024-11-13 23:45:05,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:05,947 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:05,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:06,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:45:06,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:06,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:06,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:06,333 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:06,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387738975] [2024-11-13 23:45:06,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387738975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:06,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:06,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:45:06,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776986817] [2024-11-13 23:45:06,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:06,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:45:06,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:06,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:45:06,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:45:06,336 INFO L87 Difference]: Start difference. First operand 267 states and 348 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:08,868 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 [] [2024-11-13 23:45:11,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:11,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:11,804 INFO L93 Difference]: Finished difference Result 357 states and 464 transitions. [2024-11-13 23:45:11,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:45:11,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-13 23:45:11,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:11,808 INFO L225 Difference]: With dead ends: 357 [2024-11-13 23:45:11,808 INFO L226 Difference]: Without dead ends: 355 [2024-11-13 23:45:11,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:45:11,809 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 136 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:11,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 684 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2024-11-13 23:45:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-13 23:45:11,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2024-11-13 23:45:11,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 343 states have (on average 1.3032069970845481) internal successors, (447), 346 states have internal predecessors, (447), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 23:45:11,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 461 transitions. [2024-11-13 23:45:11,829 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 461 transitions. Word has length 15 [2024-11-13 23:45:11,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:11,829 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 461 transitions. [2024-11-13 23:45:11,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:11,829 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 461 transitions. [2024-11-13 23:45:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 23:45:11,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:11,834 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] [2024-11-13 23:45:11,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-13 23:45:12,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:12,035 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:12,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:12,036 INFO L85 PathProgramCache]: Analyzing trace with hash 864970557, now seen corresponding path program 1 times [2024-11-13 23:45:12,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:12,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881374739] [2024-11-13 23:45:12,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:12,036 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 [2024-11-13 23:45:12,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:12,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:12,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:12,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:45:12,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:12,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:12,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:12,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881374739] [2024-11-13 23:45:12,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881374739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:12,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:12,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:45:12,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746289585] [2024-11-13 23:45:12,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:12,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:45:12,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:45:12,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:45:12,311 INFO L87 Difference]: Start difference. First operand 354 states and 461 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:12,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:12,508 INFO L93 Difference]: Finished difference Result 363 states and 446 transitions. [2024-11-13 23:45:12,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:45:12,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 23:45:12,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:12,511 INFO L225 Difference]: With dead ends: 363 [2024-11-13 23:45:12,511 INFO L226 Difference]: Without dead ends: 363 [2024-11-13 23:45:12,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:45:12,513 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:12,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 653 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:45:12,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-13 23:45:12,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-13 23:45:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 352 states have (on average 1.2272727272727273) internal successors, (432), 355 states have internal predecessors, (432), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 23:45:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 446 transitions. [2024-11-13 23:45:12,545 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 446 transitions. Word has length 51 [2024-11-13 23:45:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:12,545 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 446 transitions. [2024-11-13 23:45:12,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 446 transitions. [2024-11-13 23:45:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 23:45:12,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:12,550 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] [2024-11-13 23:45:12,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-13 23:45:12,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:12,750 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:12,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:12,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1075239507, now seen corresponding path program 1 times [2024-11-13 23:45:12,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:12,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921778158] [2024-11-13 23:45:12,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:12,752 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 [2024-11-13 23:45:12,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:12,754 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:12,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:12,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:45:12,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:13,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:13,124 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:13,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921778158] [2024-11-13 23:45:13,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921778158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:13,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:13,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:13,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535557349] [2024-11-13 23:45:13,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:13,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:45:13,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:13,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:45:13,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:45:13,126 INFO L87 Difference]: Start difference. First operand 363 states and 446 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:13,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:13,306 INFO L93 Difference]: Finished difference Result 345 states and 416 transitions. [2024-11-13 23:45:13,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:45:13,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 23:45:13,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:13,310 INFO L225 Difference]: With dead ends: 345 [2024-11-13 23:45:13,310 INFO L226 Difference]: Without dead ends: 345 [2024-11-13 23:45:13,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:45:13,312 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 2 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:13,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 866 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:45:13,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-13 23:45:13,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-13 23:45:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 334 states have (on average 1.2035928143712575) internal successors, (402), 337 states have internal predecessors, (402), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 23:45:13,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 416 transitions. [2024-11-13 23:45:13,335 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 416 transitions. Word has length 51 [2024-11-13 23:45:13,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:13,336 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 416 transitions. [2024-11-13 23:45:13,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:13,336 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 416 transitions. [2024-11-13 23:45:13,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 23:45:13,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:13,337 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] [2024-11-13 23:45:13,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-13 23:45:13,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:13,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:13,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:13,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1517698931, now seen corresponding path program 1 times [2024-11-13 23:45:13,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:13,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513460752] [2024-11-13 23:45:13,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:13,539 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 [2024-11-13 23:45:13,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:13,541 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:13,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (7)] Waiting until timeout for monitored process [2024-11-13 23:45:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:13,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:45:13,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:13,835 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 23:45:13,837 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 23:45:13,838 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 23:45:13,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-13 23:45:13,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:45:13,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-13 23:45:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:14,065 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:14,065 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:14,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513460752] [2024-11-13 23:45:14,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513460752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:14,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:14,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:14,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264726804] [2024-11-13 23:45:14,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:14,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:45:14,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:14,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:45:14,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:45:14,070 INFO L87 Difference]: Start difference. First operand 345 states and 416 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:19,107 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 [] [2024-11-13 23:45:22,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:22,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:22,321 INFO L93 Difference]: Finished difference Result 305 states and 373 transitions. [2024-11-13 23:45:22,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:45:22,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 23:45:22,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:22,324 INFO L225 Difference]: With dead ends: 305 [2024-11-13 23:45:22,324 INFO L226 Difference]: Without dead ends: 302 [2024-11-13 23:45:22,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:45:22,325 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 52 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:22,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 823 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2024-11-13 23:45:22,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-13 23:45:22,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-11-13 23:45:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 292 states have (on average 1.226027397260274) internal successors, (358), 295 states have internal predecessors, (358), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:45:22,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 370 transitions. [2024-11-13 23:45:22,337 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 370 transitions. Word has length 51 [2024-11-13 23:45:22,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:22,337 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 370 transitions. [2024-11-13 23:45:22,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:22,337 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 370 transitions. [2024-11-13 23:45:22,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 23:45:22,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:22,340 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] [2024-11-13 23:45:22,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (7)] Ended with exit code 0 [2024-11-13 23:45:22,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:22,541 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:22,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:22,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1576258289, now seen corresponding path program 1 times [2024-11-13 23:45:22,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:22,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571943519] [2024-11-13 23:45:22,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:22,542 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 [2024-11-13 23:45:22,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:22,547 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:22,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:23,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:45:23,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:45:23,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:23,299 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:23,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571943519] [2024-11-13 23:45:23,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571943519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:23,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:23,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:45:23,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871959284] [2024-11-13 23:45:23,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:23,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:45:23,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:23,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:45:23,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:45:23,306 INFO L87 Difference]: Start difference. First operand 302 states and 370 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) [2024-11-13 23:45:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:23,478 INFO L93 Difference]: Finished difference Result 308 states and 360 transitions. [2024-11-13 23:45:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:45:23,478 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 83 [2024-11-13 23:45:23,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:23,480 INFO L225 Difference]: With dead ends: 308 [2024-11-13 23:45:23,480 INFO L226 Difference]: Without dead ends: 308 [2024-11-13 23:45:23,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:45:23,481 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 30 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:23,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 611 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:45:23,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-13 23:45:23,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-11-13 23:45:23,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 298 states have (on average 1.167785234899329) internal successors, (348), 301 states have internal predecessors, (348), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:45:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 360 transitions. [2024-11-13 23:45:23,492 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 360 transitions. Word has length 83 [2024-11-13 23:45:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:23,492 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 360 transitions. [2024-11-13 23:45:23,492 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) [2024-11-13 23:45:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 360 transitions. [2024-11-13 23:45:23,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 23:45:23,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:23,494 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] [2024-11-13 23:45:23,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:23,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:23,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:23,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:23,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1241874051, now seen corresponding path program 1 times [2024-11-13 23:45:23,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:23,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474295200] [2024-11-13 23:45:23,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:23,695 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 [2024-11-13 23:45:23,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:23,697 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:23,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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)] Waiting until timeout for monitored process [2024-11-13 23:45:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:24,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:45:24,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:24,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:24,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:24,338 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:24,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474295200] [2024-11-13 23:45:24,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474295200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:24,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:24,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:45:24,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185313759] [2024-11-13 23:45:24,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:24,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:45:24,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:24,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:45:24,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:45:24,341 INFO L87 Difference]: Start difference. First operand 308 states and 360 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-13 23:45:24,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:24,395 INFO L93 Difference]: Finished difference Result 311 states and 364 transitions. [2024-11-13 23:45:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:45:24,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 83 [2024-11-13 23:45:24,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:24,399 INFO L225 Difference]: With dead ends: 311 [2024-11-13 23:45:24,399 INFO L226 Difference]: Without dead ends: 311 [2024-11-13 23:45:24,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:45:24,401 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 674 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 [2024-11-13 23:45:24,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 674 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:45:24,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-13 23:45:24,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-13 23:45:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 300 states have (on average 1.17) internal successors, (351), 304 states have internal predecessors, (351), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-13 23:45:24,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 364 transitions. [2024-11-13 23:45:24,416 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 364 transitions. Word has length 83 [2024-11-13 23:45:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:24,416 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 364 transitions. [2024-11-13 23:45:24,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-13 23:45:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 364 transitions. [2024-11-13 23:45:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 23:45:24,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:24,418 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-13 23:45:24,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-13 23:45:24,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:24,618 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:24,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:24,619 INFO L85 PathProgramCache]: Analyzing trace with hash -480573413, now seen corresponding path program 1 times [2024-11-13 23:45:24,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:24,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515868538] [2024-11-13 23:45:24,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:24,619 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 [2024-11-13 23:45:24,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:24,621 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:24,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (10)] Waiting until timeout for monitored process [2024-11-13 23:45:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:25,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:45:25,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:45:25,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:45:25,389 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:25,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515868538] [2024-11-13 23:45:25,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515868538] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:25,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [119928755] [2024-11-13 23:45:25,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:25,390 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:45:25,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:45:25,394 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:45:25,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-13 23:45:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:26,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:45:26,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 23:45:26,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:26,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [119928755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:26,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:45:26,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-13 23:45:26,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881845188] [2024-11-13 23:45:26,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:26,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:45:26,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:26,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:45:26,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-13 23:45:26,535 INFO L87 Difference]: Start difference. First operand 311 states and 364 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-11-13 23:45:29,406 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 [] [2024-11-13 23:45:31,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:33,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:34,945 INFO L93 Difference]: Finished difference Result 397 states and 467 transitions. [2024-11-13 23:45:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:45:34,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 85 [2024-11-13 23:45:34,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:34,948 INFO L225 Difference]: With dead ends: 397 [2024-11-13 23:45:34,948 INFO L226 Difference]: Without dead ends: 397 [2024-11-13 23:45:34,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-13 23:45:34,949 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 418 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:34,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 392 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2024-11-13 23:45:34,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-13 23:45:34,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 394. [2024-11-13 23:45:34,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 382 states have (on average 1.1727748691099475) internal successors, (448), 387 states have internal predecessors, (448), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 23:45:34,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 463 transitions. [2024-11-13 23:45:34,963 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 463 transitions. Word has length 85 [2024-11-13 23:45:34,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:34,963 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 463 transitions. [2024-11-13 23:45:34,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-11-13 23:45:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 463 transitions. [2024-11-13 23:45:34,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-13 23:45:34,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:34,965 INFO L215 NwaCegarLoop]: trace histogram [2, 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, 1] [2024-11-13 23:45:34,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-13 23:45:35,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (10)] Ended with exit code 0 [2024-11-13 23:45:35,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:35,366 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:35,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:35,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1550733025, now seen corresponding path program 1 times [2024-11-13 23:45:35,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:35,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520642238] [2024-11-13 23:45:35,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:35,368 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 [2024-11-13 23:45:35,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:35,370 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:35,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (12)] Waiting until timeout for monitored process [2024-11-13 23:45:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:36,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:45:36,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:45:36,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:45:36,264 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:36,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520642238] [2024-11-13 23:45:36,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520642238] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:36,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1318181138] [2024-11-13 23:45:36,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:36,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:45:36,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:45:36,267 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:45:36,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-13 23:45:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:37,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:45:37,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:37,396 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:45:37,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:45:37,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1318181138] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:37,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216274142] [2024-11-13 23:45:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:37,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:37,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:37,482 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:45:37,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 23:45:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:38,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:45:38,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:38,161 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:45:38,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:45:38,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216274142] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:38,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-13 23:45:38,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-13 23:45:38,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336573623] [2024-11-13 23:45:38,355 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-13 23:45:38,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 23:45:38,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:38,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 23:45:38,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-13 23:45:38,357 INFO L87 Difference]: Start difference. First operand 394 states and 463 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 23:45:38,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:38,821 INFO L93 Difference]: Finished difference Result 409 states and 485 transitions. [2024-11-13 23:45:38,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 23:45:38,823 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 88 [2024-11-13 23:45:38,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:38,826 INFO L225 Difference]: With dead ends: 409 [2024-11-13 23:45:38,827 INFO L226 Difference]: Without dead ends: 409 [2024-11-13 23:45:38,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-13 23:45:38,828 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 14 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:38,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1113 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:45:38,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-13 23:45:38,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 405. [2024-11-13 23:45:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 392 states have (on average 1.1887755102040816) internal successors, (466), 397 states have internal predecessors, (466), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 23:45:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 481 transitions. [2024-11-13 23:45:38,845 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 481 transitions. Word has length 88 [2024-11-13 23:45:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:38,845 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 481 transitions. [2024-11-13 23:45:38,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 23:45:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 481 transitions. [2024-11-13 23:45:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 23:45:38,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:38,848 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1] [2024-11-13 23:45:38,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (12)] Ended with exit code 0 [2024-11-13 23:45:39,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 23:45:39,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-13 23:45:39,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-13 23:45:39,450 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:39,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:39,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1083101437, now seen corresponding path program 2 times [2024-11-13 23:45:39,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:39,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922894242] [2024-11-13 23:45:39,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:45:39,452 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 [2024-11-13 23:45:39,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:39,455 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:39,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (15)] Waiting until timeout for monitored process [2024-11-13 23:45:40,349 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:45:40,350 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:45:40,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 23:45:40,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 23:45:40,503 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 23:45:40,908 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922894242] [2024-11-13 23:45:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922894242] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [758689851] [2024-11-13 23:45:40,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:45:40,908 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:45:40,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:45:40,913 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:45:40,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-13 23:45:42,342 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:45:42,342 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:45:42,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 23:45:42,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:42,404 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 23:45:42,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 23:45:42,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [758689851] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:42,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345047060] [2024-11-13 23:45:42,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:45:42,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:42,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:42,528 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:45:42,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 23:45:43,215 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:45:43,216 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:45:43,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:45:43,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:43,948 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 23:45:43,949 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 23:45:43,949 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 23:45:43,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-13 23:45:44,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:45:44,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-13 23:45:44,199 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 23:45:44,199 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:44,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345047060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:44,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-13 23:45:44,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 8, 8] total 18 [2024-11-13 23:45:44,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104292019] [2024-11-13 23:45:44,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:44,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:45:44,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:44,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:45:44,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-13 23:45:44,201 INFO L87 Difference]: Start difference. First operand 405 states and 481 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:45:46,716 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 [] [2024-11-13 23:45:49,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:49,271 INFO L93 Difference]: Finished difference Result 481 states and 570 transitions. [2024-11-13 23:45:49,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:45:49,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2024-11-13 23:45:49,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:49,273 INFO L225 Difference]: With dead ends: 481 [2024-11-13 23:45:49,273 INFO L226 Difference]: Without dead ends: 481 [2024-11-13 23:45:49,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-13 23:45:49,274 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 357 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:49,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 592 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 23:45:49,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-13 23:45:49,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 407. [2024-11-13 23:45:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 394 states have (on average 1.1878172588832487) internal successors, (468), 399 states have internal predecessors, (468), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 23:45:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 483 transitions. [2024-11-13 23:45:49,289 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 483 transitions. Word has length 94 [2024-11-13 23:45:49,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:49,290 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 483 transitions. [2024-11-13 23:45:49,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:45:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 483 transitions. [2024-11-13 23:45:49,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-13 23:45:49,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:49,293 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 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] [2024-11-13 23:45:49,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-13 23:45:49,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-13 23:45:49,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (15)] Ended with exit code 0 [2024-11-13 23:45:49,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-13 23:45:49,894 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:49,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:49,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1745556242, now seen corresponding path program 1 times [2024-11-13 23:45:49,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:49,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783588575] [2024-11-13 23:45:49,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:49,895 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 [2024-11-13 23:45:49,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:49,897 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:49,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (18)] Waiting until timeout for monitored process [2024-11-13 23:45:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:50,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 23:45:50,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:50,878 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 23:45:50,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 23:45:51,298 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:51,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783588575] [2024-11-13 23:45:51,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783588575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:51,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1690990448] [2024-11-13 23:45:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:51,299 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:45:51,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:45:51,302 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:45:51,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-13 23:45:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:52,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 23:45:52,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:52,728 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 23:45:52,728 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:52,882 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 23:45:52,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1690990448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:52,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108912794] [2024-11-13 23:45:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:52,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:52,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:52,885 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:45:52,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 23:45:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:53,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:45:53,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:53,851 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 23:45:53,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 23:45:54,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108912794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:54,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-13 23:45:54,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 20 [2024-11-13 23:45:54,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444845249] [2024-11-13 23:45:54,236 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-13 23:45:54,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 23:45:54,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:54,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 23:45:54,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2024-11-13 23:45:54,239 INFO L87 Difference]: Start difference. First operand 407 states and 483 transitions. Second operand has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:45:55,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:55,280 INFO L93 Difference]: Finished difference Result 420 states and 500 transitions. [2024-11-13 23:45:55,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 23:45:55,282 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 138 [2024-11-13 23:45:55,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:55,286 INFO L225 Difference]: With dead ends: 420 [2024-11-13 23:45:55,286 INFO L226 Difference]: Without dead ends: 414 [2024-11-13 23:45:55,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 804 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2024-11-13 23:45:55,287 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 7 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:55,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2020 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 23:45:55,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-13 23:45:55,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2024-11-13 23:45:55,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 401 states have (on average 1.1845386533665836) internal successors, (475), 406 states have internal predecessors, (475), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 23:45:55,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 490 transitions. [2024-11-13 23:45:55,306 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 490 transitions. Word has length 138 [2024-11-13 23:45:55,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:55,306 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 490 transitions. [2024-11-13 23:45:55,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:45:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 490 transitions. [2024-11-13 23:45:55,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-13 23:45:55,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:55,309 INFO L215 NwaCegarLoop]: trace histogram [15, 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, 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] [2024-11-13 23:45:55,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-13 23:45:55,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (18)] Ended with exit code 0 [2024-11-13 23:45:55,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 23:45:55,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:55,911 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:45:55,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:55,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1747805276, now seen corresponding path program 2 times [2024-11-13 23:45:55,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:55,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64944961] [2024-11-13 23:45:55,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:45:55,912 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 [2024-11-13 23:45:55,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:55,914 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:45:55,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (21)] Waiting until timeout for monitored process [2024-11-13 23:45:57,001 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:45:57,001 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:45:57,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:45:57,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:57,405 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 23:45:57,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:58,368 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 23:45:58,368 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:58,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64944961] [2024-11-13 23:45:58,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64944961] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:58,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [750774115] [2024-11-13 23:45:58,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:45:58,369 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:45:58,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:45:58,372 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:45:58,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-13 23:46:00,978 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:46:00,978 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:46:00,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:46:00,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 23:46:01,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 23:46:01,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [750774115] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:46:01,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955072178] [2024-11-13 23:46:01,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:46:01,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:01,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:01,345 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:01,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 23:46:02,292 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:46:02,292 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:46:02,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:46:02,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:02,467 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-13 23:46:02,467 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-13 23:46:03,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955072178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:46:03,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-13 23:46:03,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 9, 9] total 35 [2024-11-13 23:46:03,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497209417] [2024-11-13 23:46:03,231 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-13 23:46:03,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-13 23:46:03,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:46:03,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-13 23:46:03,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 23:46:03,233 INFO L87 Difference]: Start difference. First operand 414 states and 490 transitions. Second operand has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 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) [2024-11-13 23:46:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:08,245 INFO L93 Difference]: Finished difference Result 448 states and 545 transitions. [2024-11-13 23:46:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-13 23:46:08,246 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 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 145 [2024-11-13 23:46:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:08,248 INFO L225 Difference]: With dead ends: 448 [2024-11-13 23:46:08,248 INFO L226 Difference]: Without dead ends: 442 [2024-11-13 23:46:08,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 831 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1393, Invalid=4157, Unknown=0, NotChecked=0, Total=5550 [2024-11-13 23:46:08,251 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 44 mSDsluCounter, 3770 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3996 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:08,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3996 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 23:46:08,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-13 23:46:08,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 438. [2024-11-13 23:46:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 425 states have (on average 1.2) internal successors, (510), 430 states have internal predecessors, (510), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 23:46:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 525 transitions. [2024-11-13 23:46:08,265 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 525 transitions. Word has length 145 [2024-11-13 23:46:08,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:08,265 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 525 transitions. [2024-11-13 23:46:08,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 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) [2024-11-13 23:46:08,266 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 525 transitions. [2024-11-13 23:46:08,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-13 23:46:08,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:08,268 INFO L215 NwaCegarLoop]: trace histogram [39, 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, 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] [2024-11-13 23:46:08,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (21)] Ended with exit code 0 [2024-11-13 23:46:08,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-13 23:46:08,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-13 23:46:08,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:08,870 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 23:46:08,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:08,870 INFO L85 PathProgramCache]: Analyzing trace with hash -775762212, now seen corresponding path program 3 times [2024-11-13 23:46:08,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:46:08,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737633307] [2024-11-13 23:46:08,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:46:08,872 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 [2024-11-13 23:46:08,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:46:08,874 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-13 23:46:08,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/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 (24)] Waiting until timeout for monitored process [2024-11-13 23:46:15,292 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-13 23:46:15,292 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:46:15,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 23:46:15,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-13 23:46:16,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-13 23:46:18,666 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:46:18,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737633307] [2024-11-13 23:46:18,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737633307] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:46:18,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [213893584] [2024-11-13 23:46:18,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:46:18,666 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:46:18,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:46:18,668 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:46:18,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-13 23:56:04,851 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-13 23:56:04,851 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:56:05,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 23:56:05,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:56:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-13 23:56:05,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:56:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-13 23:56:05,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [213893584] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:56:05,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848573202] [2024-11-13 23:56:05,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:56:05,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:56:05,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:56:05,600 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:56:05,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fee1d5f-0b5f-4113-a450-2f9d636b852a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process