./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:02,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:46:02,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 03:46:02,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:46:02,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:46:02,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:46:02,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:46:02,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:46:02,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:46:02,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:46:02,501 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:46:02,501 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:46:02,501 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:46:02,502 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:46:02,502 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:46:02,502 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:46:02,502 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:46:02,502 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:46:02,503 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:46:02,503 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:46:02,503 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:46:02,503 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:46:02,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:46:02,504 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:46:02,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:46:02,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:46:02,505 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:46:02,505 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:46:02,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:46:02,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:46:02,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:46:02,509 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:46:02,510 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:46:02,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:46:02,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:46:02,510 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:46:02,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:46:02,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:46:02,510 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:46:02,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:46:02,510 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:46:02,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:46:02,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:46:02,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:46:02,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:46:02,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:46:02,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:46:02,511 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:46:02,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:46:02,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:46:02,512 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:46:02,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:46:02,512 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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:02,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:46:02,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:46:03,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:46:03,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:46:03,007 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:46:03,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i Unable to find full path for "g++" [2024-11-14 03:46:05,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:46:06,138 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:46:06,139 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2024-11-14 03:46:06,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/data/30749bbd7/a593772ee60a41179c58a008e23dcddb/FLAGd918e233c [2024-11-14 03:46:06,276 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/data/30749bbd7/a593772ee60a41179c58a008e23dcddb [2024-11-14 03:46:06,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:46:06,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:46:06,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:46:06,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:46:06,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:46:06,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:46:06" (1/1) ... [2024-11-14 03:46:06,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610be90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:06, skipping insertion in model container [2024-11-14 03:46:06,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:46:06" (1/1) ... [2024-11-14 03:46:06,345 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:46:07,123 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,182 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,196 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,202 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,214 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,281 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,282 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,285 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,286 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,290 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,296 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,299 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,301 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,308 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:07,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:46:07,350 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) [2024-11-14 03:46:07,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37f8cae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:07, skipping insertion in model container [2024-11-14 03:46:07,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:46:07,352 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 03:46:07,355 INFO L158 Benchmark]: Toolchain (without parser) took 1072.11ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 62.2MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:46:07,356 INFO L158 Benchmark]: CDTParser took 2.09ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:46:07,357 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1067.99ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 62.2MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:46:07,358 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.09ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1067.99ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 62.2MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. 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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:10,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:46:10,759 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 03:46:10,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:46:10,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:46:10,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:46:10,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:46:10,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:46:10,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:46:10,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:46:10,862 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:46:10,862 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:46:10,863 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:46:10,863 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:46:10,863 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:46:10,863 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:46:10,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:46:10,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:46:10,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:46:10,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:46:10,868 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:46:10,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:46:10,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:46:10,869 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:46:10,870 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:46:10,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:46:10,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:46:10,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:46:10,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:46:10,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:46:10,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:46:10,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:46:10,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:46:10,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:46:10,872 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:46:10,872 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:46:10,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:46:10,872 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:46:10,876 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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:11,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:46:11,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:46:11,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:46:11,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:46:11,325 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:46:11,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i Unable to find full path for "g++" [2024-11-14 03:46:13,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:46:14,342 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:46:14,343 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2024-11-14 03:46:14,364 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/data/a0b380627/7e303a2d892440069f5200937eb5c2ce/FLAG9bf9c806e [2024-11-14 03:46:14,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/data/a0b380627/7e303a2d892440069f5200937eb5c2ce [2024-11-14 03:46:14,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:46:14,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:46:14,406 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:46:14,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:46:14,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:46:14,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:46:14" (1/1) ... [2024-11-14 03:46:14,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79bd14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:14, skipping insertion in model container [2024-11-14 03:46:14,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:46:14" (1/1) ... [2024-11-14 03:46:14,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:46:15,116 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,198 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,209 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,222 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,246 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,314 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,315 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,320 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,320 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,325 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,332 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,333 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,334 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,342 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:46:15,373 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 03:46:15,402 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:46:15,458 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,480 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,483 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,487 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,495 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,543 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,543 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,546 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,546 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,550 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,551 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,552 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,553 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,559 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:46:15,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:46:15,576 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:46:15,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:46:15,805 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:46:15,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15 WrapperNode [2024-11-14 03:46:15,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:46:15,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:46:15,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:46:15,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:46:15,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:15,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:15,913 INFO L138 Inliner]: procedures = 180, calls = 274, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 996 [2024-11-14 03:46:15,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:46:15,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:46:15,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:46:15,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:46:15,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:15,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:15,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:15,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:16,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:16,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:16,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:16,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:16,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:46:16,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:46:16,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:46:16,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:46:16,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (1/1) ... [2024-11-14 03:46:16,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:46:16,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:46:16,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:46:16,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:46:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 03:46:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:46:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:46:16,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:46:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 03:46:16,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 03:46:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:46:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:46:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:46:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:46:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:46:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:46:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:46:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:46:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:46:16,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:46:16,514 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:46:16,516 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:46:25,708 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-14 03:46:25,709 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:46:25,733 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:46:25,733 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-14 03:46:25,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:46:25 BoogieIcfgContainer [2024-11-14 03:46:25,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:46:25,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:46:25,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:46:25,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:46:25,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:46:14" (1/3) ... [2024-11-14 03:46:25,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e151c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:46:25, skipping insertion in model container [2024-11-14 03:46:25,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:15" (2/3) ... [2024-11-14 03:46:25,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e151c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:46:25, skipping insertion in model container [2024-11-14 03:46:25,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:46:25" (3/3) ... [2024-11-14 03:46:25,749 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test3-1.i [2024-11-14 03:46:25,768 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:46:25,770 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_nondet_test3-1.i that has 3 procedures, 201 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2024-11-14 03:46:25,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:46:25,838 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;@7e12d411, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:46:25,839 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:46:25,844 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) [2024-11-14 03:46:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:46:25,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:25,852 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:46:25,853 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:46:25,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1172624, now seen corresponding path program 1 times [2024-11-14 03:46:25,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:46:25,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550319590] [2024-11-14 03:46:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:25,873 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 [2024-11-14 03:46:25,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:46:25,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:46:25,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:26,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:46:26,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:26,246 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 [2024-11-14 03:46:26,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:26,256 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:26,257 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:46:26,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550319590] [2024-11-14 03:46:26,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550319590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:26,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:26,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:46:26,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448642469] [2024-11-14 03:46:26,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:26,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:46:26,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:46:26,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:46:26,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-14 03:46:26,308 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) [2024-11-14 03:46:28,649 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 [] [2024-11-14 03:46:29,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:29,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:29,896 INFO L93 Difference]: Finished difference Result 295 states and 386 transitions. [2024-11-14 03:46:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:46:29,908 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 [2024-11-14 03:46:29,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:29,922 INFO L225 Difference]: With dead ends: 295 [2024-11-14 03:46:29,923 INFO L226 Difference]: Without dead ends: 292 [2024-11-14 03:46:29,924 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 [2024-11-14 03:46:29,931 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 120 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:29,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 486 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 387 Unchecked, 3.5s Time] [2024-11-14 03:46:29,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-14 03:46:29,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 198. [2024-11-14 03:46:29,989 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) [2024-11-14 03:46:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 255 transitions. [2024-11-14 03:46:29,998 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 255 transitions. Word has length 4 [2024-11-14 03:46:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:29,998 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 255 transitions. [2024-11-14 03:46:29,999 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) [2024-11-14 03:46:29,999 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 255 transitions. [2024-11-14 03:46:30,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 03:46:30,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:30,001 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:46:30,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:30,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:30,205 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:46:30,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:30,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1933105580, now seen corresponding path program 1 times [2024-11-14 03:46:30,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:46:30,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602853329] [2024-11-14 03:46:30,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:30,207 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 [2024-11-14 03:46:30,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:46:30,209 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:46:30,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:30,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:46:30,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:30,720 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 [2024-11-14 03:46:30,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:30,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:30,721 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:46:30,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602853329] [2024-11-14 03:46:30,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602853329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:30,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:30,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:46:30,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851263697] [2024-11-14 03:46:30,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:30,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:46:30,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:46:30,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:46:30,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-14 03:46:30,725 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) [2024-11-14 03:46:33,008 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 [] [2024-11-14 03:46:34,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:34,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:34,398 INFO L93 Difference]: Finished difference Result 293 states and 382 transitions. [2024-11-14 03:46:34,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:46:34,405 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 [2024-11-14 03:46:34,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:34,407 INFO L225 Difference]: With dead ends: 293 [2024-11-14 03:46:34,408 INFO L226 Difference]: Without dead ends: 291 [2024-11-14 03:46:34,408 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 [2024-11-14 03:46:34,409 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 112 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s 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, 3.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:34,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 483 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 381 Unchecked, 3.6s Time] [2024-11-14 03:46:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-14 03:46:34,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 267. [2024-11-14 03:46:34,428 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) [2024-11-14 03:46:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 348 transitions. [2024-11-14 03:46:34,431 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 348 transitions. Word has length 12 [2024-11-14 03:46:34,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:34,432 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 348 transitions. [2024-11-14 03:46:34,432 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) [2024-11-14 03:46:34,432 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 348 transitions. [2024-11-14 03:46:34,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 03:46:34,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:34,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:46:34,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:46:34,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:34,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:46:34,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:34,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2141012922, now seen corresponding path program 1 times [2024-11-14 03:46:34,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:46:34,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132333121] [2024-11-14 03:46:34,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:34,636 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 [2024-11-14 03:46:34,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:46:34,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:46:34,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:34,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:46:34,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:35,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:35,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:35,072 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:46:35,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132333121] [2024-11-14 03:46:35,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132333121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:35,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:35,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:46:35,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856487023] [2024-11-14 03:46:35,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:35,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:46:35,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:46:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:46:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:46:35,074 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) [2024-11-14 03:46:37,612 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 [] [2024-11-14 03:46:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:41,007 INFO L93 Difference]: Finished difference Result 357 states and 464 transitions. [2024-11-14 03:46:41,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:46:41,010 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 [2024-11-14 03:46:41,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:41,012 INFO L225 Difference]: With dead ends: 357 [2024-11-14 03:46:41,012 INFO L226 Difference]: Without dead ends: 355 [2024-11-14 03:46:41,013 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 [2024-11-14 03:46:41,014 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 136 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s 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, 5.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:41,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 684 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-14 03:46:41,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-14 03:46:41,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2024-11-14 03:46:41,046 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) [2024-11-14 03:46:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 461 transitions. [2024-11-14 03:46:41,049 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 461 transitions. Word has length 15 [2024-11-14 03:46:41,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:41,050 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 461 transitions. [2024-11-14 03:46:41,050 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) [2024-11-14 03:46:41,050 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 461 transitions. [2024-11-14 03:46:41,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 03:46:41,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:41,052 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] [2024-11-14 03:46:41,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:41,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:41,256 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:46:41,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:41,257 INFO L85 PathProgramCache]: Analyzing trace with hash 864970557, now seen corresponding path program 1 times [2024-11-14 03:46:41,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:46:41,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896974031] [2024-11-14 03:46:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:41,258 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 [2024-11-14 03:46:41,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:46:41,260 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:46:41,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:41,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:46:41,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:41,561 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:41,562 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:46:41,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896974031] [2024-11-14 03:46:41,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896974031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:41,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:41,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:46:41,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38625383] [2024-11-14 03:46:41,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:41,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:46:41,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:46:41,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:46:41,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:46:41,564 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) [2024-11-14 03:46:41,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:41,783 INFO L93 Difference]: Finished difference Result 363 states and 446 transitions. [2024-11-14 03:46:41,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:46:41,784 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 [2024-11-14 03:46:41,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:41,786 INFO L225 Difference]: With dead ends: 363 [2024-11-14 03:46:41,787 INFO L226 Difference]: Without dead ends: 363 [2024-11-14 03:46:41,787 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 [2024-11-14 03:46:41,788 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-11-14 03:46:41,788 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] [2024-11-14 03:46:41,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-14 03:46:41,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-14 03:46:41,803 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) [2024-11-14 03:46:41,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 446 transitions. [2024-11-14 03:46:41,807 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 446 transitions. Word has length 51 [2024-11-14 03:46:41,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:41,807 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 446 transitions. [2024-11-14 03:46:41,807 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) [2024-11-14 03:46:41,807 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 446 transitions. [2024-11-14 03:46:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 03:46:41,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:41,809 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] [2024-11-14 03:46:41,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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)] Ended with exit code 0 [2024-11-14 03:46:42,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:42,011 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:46:42,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:42,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1075239507, now seen corresponding path program 1 times [2024-11-14 03:46:42,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:46:42,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215244625] [2024-11-14 03:46:42,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:42,012 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 [2024-11-14 03:46:42,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:46:42,014 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:46:42,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:42,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:46:42,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:42,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:42,431 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:42,432 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:46:42,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215244625] [2024-11-14 03:46:42,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215244625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:42,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:42,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:46:42,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465358879] [2024-11-14 03:46:42,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:42,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:46:42,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:46:42,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:46:42,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:46:42,434 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) [2024-11-14 03:46:42,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:42,626 INFO L93 Difference]: Finished difference Result 345 states and 416 transitions. [2024-11-14 03:46:42,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:46:42,627 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 [2024-11-14 03:46:42,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:42,629 INFO L225 Difference]: With dead ends: 345 [2024-11-14 03:46:42,629 INFO L226 Difference]: Without dead ends: 345 [2024-11-14 03:46:42,629 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 [2024-11-14 03:46:42,630 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 2 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-11-14 03:46:42,631 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] [2024-11-14 03:46:42,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-14 03:46:42,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-14 03:46:42,641 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) [2024-11-14 03:46:42,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 416 transitions. [2024-11-14 03:46:42,644 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 416 transitions. Word has length 51 [2024-11-14 03:46:42,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:42,644 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 416 transitions. [2024-11-14 03:46:42,645 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) [2024-11-14 03:46:42,645 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 416 transitions. [2024-11-14 03:46:42,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 03:46:42,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:42,647 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] [2024-11-14 03:46:42,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:46:42,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:42,848 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:46:42,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1517698931, now seen corresponding path program 1 times [2024-11-14 03:46:42,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:46:42,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105629888] [2024-11-14 03:46:42,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:42,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:46:42,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:46:42,852 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:46:42,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:43,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:46:43,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:43,192 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:46:43,193 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:46:43,194 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:46:43,206 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 [2024-11-14 03:46:43,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:46:43,347 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 [2024-11-14 03:46:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:43,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:43,456 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:46:43,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105629888] [2024-11-14 03:46:43,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105629888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:43,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:43,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:46:43,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125536783] [2024-11-14 03:46:43,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:43,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:46:43,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:46:43,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:46:43,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:46:43,458 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) [2024-11-14 03:46:48,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:51,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:46:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:52,101 INFO L93 Difference]: Finished difference Result 305 states and 373 transitions. [2024-11-14 03:46:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:46:52,103 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 [2024-11-14 03:46:52,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:52,104 INFO L225 Difference]: With dead ends: 305 [2024-11-14 03:46:52,104 INFO L226 Difference]: Without dead ends: 302 [2024-11-14 03:46:52,105 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 [2024-11-14 03:46:52,105 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 52 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s 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, 8.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:52,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 823 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2024-11-14 03:46:52,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-14 03:46:52,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-11-14 03:46:52,114 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) [2024-11-14 03:46:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 370 transitions. [2024-11-14 03:46:52,116 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 370 transitions. Word has length 51 [2024-11-14 03:46:52,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:52,117 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 370 transitions. [2024-11-14 03:46:52,117 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) [2024-11-14 03:46:52,117 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 370 transitions. [2024-11-14 03:46:52,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 03:46:52,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:52,119 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] [2024-11-14 03:46:52,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:52,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:52,320 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:46:52,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:52,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1576258289, now seen corresponding path program 1 times [2024-11-14 03:46:52,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:46:52,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67317131] [2024-11-14 03:46:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:52,322 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 [2024-11-14 03:46:52,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:46:52,325 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:46:52,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:52,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:46:52,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:46:53,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:53,047 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:46:53,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67317131] [2024-11-14 03:46:53,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67317131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:53,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:53,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:46:53,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044390294] [2024-11-14 03:46:53,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:53,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:46:53,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:46:53,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:46:53,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:46:53,050 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) [2024-11-14 03:46:53,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:53,256 INFO L93 Difference]: Finished difference Result 308 states and 360 transitions. [2024-11-14 03:46:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:46:53,257 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 [2024-11-14 03:46:53,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:53,259 INFO L225 Difference]: With dead ends: 308 [2024-11-14 03:46:53,259 INFO L226 Difference]: Without dead ends: 308 [2024-11-14 03:46:53,259 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 [2024-11-14 03:46:53,260 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 30 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:53,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 611 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:46:53,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-14 03:46:53,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-11-14 03:46:53,270 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) [2024-11-14 03:46:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 360 transitions. [2024-11-14 03:46:53,273 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 360 transitions. Word has length 83 [2024-11-14 03:46:53,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:53,273 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 360 transitions. [2024-11-14 03:46:53,273 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) [2024-11-14 03:46:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 360 transitions. [2024-11-14 03:46:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 03:46:53,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:53,275 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] [2024-11-14 03:46:53,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:46:53,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:53,476 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:46:53,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:53,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1241874051, now seen corresponding path program 1 times [2024-11-14 03:46:53,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:46:53,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338769186] [2024-11-14 03:46:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:53,478 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 [2024-11-14 03:46:53,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:46:53,480 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:46:53,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:54,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:46:54,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:46:54,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:54,190 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:46:54,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338769186] [2024-11-14 03:46:54,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338769186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:54,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:54,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:46:54,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971391314] [2024-11-14 03:46:54,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:54,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:46:54,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:46:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:46:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:46:54,193 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) [2024-11-14 03:46:54,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:54,261 INFO L93 Difference]: Finished difference Result 311 states and 364 transitions. [2024-11-14 03:46:54,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:46:54,263 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 [2024-11-14 03:46:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:54,266 INFO L225 Difference]: With dead ends: 311 [2024-11-14 03:46:54,266 INFO L226 Difference]: Without dead ends: 311 [2024-11-14 03:46:54,267 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 [2024-11-14 03:46:54,268 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:54,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 674 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:46:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-14 03:46:54,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-14 03:46:54,279 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) [2024-11-14 03:46:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 364 transitions. [2024-11-14 03:46:54,284 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 364 transitions. Word has length 83 [2024-11-14 03:46:54,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:54,285 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 364 transitions. [2024-11-14 03:46:54,285 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) [2024-11-14 03:46:54,286 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 364 transitions. [2024-11-14 03:46:54,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:46:54,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:54,288 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] [2024-11-14 03:46:54,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:54,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:54,490 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:46:54,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:54,490 INFO L85 PathProgramCache]: Analyzing trace with hash -480573413, now seen corresponding path program 1 times [2024-11-14 03:46:54,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:46:54,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267953346] [2024-11-14 03:46:54,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:54,492 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 [2024-11-14 03:46:54,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:46:54,496 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:46:54,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:46:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:55,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:46:55,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:46:55,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:46:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:46:55,557 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:46:55,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267953346] [2024-11-14 03:46:55,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267953346] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:46:55,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [158285706] [2024-11-14 03:46:55,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:55,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:46:55,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:46:55,564 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:46:55,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-14 03:46:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:56,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:46:56,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:56,847 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:46:56,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:46:56,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [158285706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:56,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:46:56,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-14 03:46:56,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016812105] [2024-11-14 03:46:56,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:56,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:46:56,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:46:56,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:46:56,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:46:56,850 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) [2024-11-14 03:46:59,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:01,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:05,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:07,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:47:07,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:07,198 INFO L93 Difference]: Finished difference Result 397 states and 467 transitions. [2024-11-14 03:47:07,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:47:07,199 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 [2024-11-14 03:47:07,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:07,201 INFO L225 Difference]: With dead ends: 397 [2024-11-14 03:47:07,201 INFO L226 Difference]: Without dead ends: 397 [2024-11-14 03:47:07,202 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 [2024-11-14 03:47:07,202 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 418 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:07,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 392 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2024-11-14 03:47:07,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-14 03:47:07,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 394. [2024-11-14 03:47:07,214 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) [2024-11-14 03:47:07,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 463 transitions. [2024-11-14 03:47:07,216 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 463 transitions. Word has length 85 [2024-11-14 03:47:07,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:07,217 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 463 transitions. [2024-11-14 03:47:07,217 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) [2024-11-14 03:47:07,218 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 463 transitions. [2024-11-14 03:47:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:47:07,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:07,219 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] [2024-11-14 03:47:07,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-14 03:47:07,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:07,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:07,620 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:47:07,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:07,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1550733025, now seen corresponding path program 1 times [2024-11-14 03:47:07,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:47:07,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819279609] [2024-11-14 03:47:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:07,621 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 [2024-11-14 03:47:07,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:47:07,623 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:47:07,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:08,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:47:08,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:08,424 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:47:08,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:47:08,612 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:47:08,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819279609] [2024-11-14 03:47:08,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819279609] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:08,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1832821512] [2024-11-14 03:47:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:08,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:47:08,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:47:08,616 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:47:08,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-14 03:47:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:09,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:47:09,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:47:09,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:09,987 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:47:09,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1832821512] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:09,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173600554] [2024-11-14 03:47:09,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:09,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:47:09,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:47:09,992 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:47:09,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:47:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:10,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:47:10,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:10,727 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:47:10,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:47:10,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173600554] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:10,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:47:10,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-14 03:47:10,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076664948] [2024-11-14 03:47:10,950 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:47:10,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:47:10,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:47:10,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:47:10,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:47:10,954 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) [2024-11-14 03:47:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:11,562 INFO L93 Difference]: Finished difference Result 409 states and 485 transitions. [2024-11-14 03:47:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:47:11,564 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 [2024-11-14 03:47:11,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:11,567 INFO L225 Difference]: With dead ends: 409 [2024-11-14 03:47:11,567 INFO L226 Difference]: Without dead ends: 409 [2024-11-14 03:47:11,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:47:11,570 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:11,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1113 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:47:11,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-14 03:47:11,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 405. [2024-11-14 03:47:11,584 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) [2024-11-14 03:47:11,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 481 transitions. [2024-11-14 03:47:11,587 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 481 transitions. Word has length 88 [2024-11-14 03:47:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:11,587 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 481 transitions. [2024-11-14 03:47:11,588 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) [2024-11-14 03:47:11,588 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 481 transitions. [2024-11-14 03:47:11,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-14 03:47:11,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:11,589 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] [2024-11-14 03:47:11,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:47:11,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:11,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-14 03:47:12,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:47:12,190 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:47:12,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:12,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1083101437, now seen corresponding path program 2 times [2024-11-14 03:47:12,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:47:12,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105205867] [2024-11-14 03:47:12,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:47:12,192 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 [2024-11-14 03:47:12,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:47:12,197 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:47:12,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:13,132 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:47:13,132 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:47:13,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:47:13,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:13,325 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:47:13,325 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:13,832 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:47:13,832 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:47:13,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105205867] [2024-11-14 03:47:13,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105205867] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:13,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [736719725] [2024-11-14 03:47:13,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:47:13,833 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:47:13,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:47:13,835 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:47:13,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-14 03:47:15,177 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:47:15,177 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:47:15,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:47:15,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:47:15,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:47:15,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [736719725] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:15,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987821388] [2024-11-14 03:47:15,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:47:15,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:47:15,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:47:15,397 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:47:15,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 03:47:16,223 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:47:16,223 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:47:16,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:47:16,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:17,099 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:47:17,100 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:47:17,100 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:47:17,103 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 [2024-11-14 03:47:17,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:47:17,269 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 [2024-11-14 03:47:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 03:47:17,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:47:17,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987821388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:47:17,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 03:47:17,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 8, 8] total 18 [2024-11-14 03:47:17,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528108468] [2024-11-14 03:47:17,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:47:17,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:47:17,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:47:17,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:47:17,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:47:17,354 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) [2024-11-14 03:47:20,127 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 [] [2024-11-14 03:47:23,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:23,062 INFO L93 Difference]: Finished difference Result 481 states and 570 transitions. [2024-11-14 03:47:23,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:47:23,063 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 [2024-11-14 03:47:23,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:23,065 INFO L225 Difference]: With dead ends: 481 [2024-11-14 03:47:23,065 INFO L226 Difference]: Without dead ends: 481 [2024-11-14 03:47:23,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:47:23,067 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 357 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s 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, 5.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:23,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 592 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-11-14 03:47:23,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-14 03:47:23,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 407. [2024-11-14 03:47:23,079 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) [2024-11-14 03:47:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 483 transitions. [2024-11-14 03:47:23,082 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 483 transitions. Word has length 94 [2024-11-14 03:47:23,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:23,083 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 483 transitions. [2024-11-14 03:47:23,083 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) [2024-11-14 03:47:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 483 transitions. [2024-11-14 03:47:23,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-14 03:47:23,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:23,085 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] [2024-11-14 03:47:23,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:23,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-11-14 03:47:23,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 03:47:23,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:47:23,686 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:47:23,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:23,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1745556242, now seen corresponding path program 1 times [2024-11-14 03:47:23,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:47:23,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359974552] [2024-11-14 03:47:23,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:23,688 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 [2024-11-14 03:47:23,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:47:23,689 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:47:23,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:24,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:47:24,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:47:24,735 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:47:25,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:47:25,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359974552] [2024-11-14 03:47:25,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359974552] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:25,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [698903788] [2024-11-14 03:47:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:25,179 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:47:25,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:47:25,181 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:47:25,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-14 03:47:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:26,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:47:26,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:47:26,680 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:47:26,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [698903788] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:26,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224067157] [2024-11-14 03:47:26,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:26,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:47:26,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:47:26,834 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:47:26,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 03:47:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:27,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:47:27,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:27,839 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:47:27,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:47:28,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224067157] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:28,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:47:28,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 20 [2024-11-14 03:47:28,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483246331] [2024-11-14 03:47:28,305 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:47:28,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 03:47:28,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:47:28,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 03:47:28,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:47:28,308 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) [2024-11-14 03:47:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:29,509 INFO L93 Difference]: Finished difference Result 420 states and 500 transitions. [2024-11-14 03:47:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 03:47:29,511 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 [2024-11-14 03:47:29,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:29,513 INFO L225 Difference]: With dead ends: 420 [2024-11-14 03:47:29,514 INFO L226 Difference]: Without dead ends: 414 [2024-11-14 03:47:29,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 804 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:47:29,515 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 7 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:29,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2020 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:47:29,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-14 03:47:29,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2024-11-14 03:47:29,528 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) [2024-11-14 03:47:29,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 490 transitions. [2024-11-14 03:47:29,533 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 490 transitions. Word has length 138 [2024-11-14 03:47:29,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:29,533 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 490 transitions. [2024-11-14 03:47:29,534 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) [2024-11-14 03:47:29,534 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 490 transitions. [2024-11-14 03:47:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-14 03:47:29,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:29,536 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] [2024-11-14 03:47:29,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:47:29,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 03:47:29,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-14 03:47:30,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:47:30,138 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:47:30,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:30,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1747805276, now seen corresponding path program 2 times [2024-11-14 03:47:30,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:47:30,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291214393] [2024-11-14 03:47:30,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:47:30,140 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 [2024-11-14 03:47:30,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:47:30,142 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:47:30,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:31,165 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:47:31,165 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:47:31,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:47:31,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:31,615 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:47:31,615 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:32,761 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 03:47:32,762 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:47:32,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291214393] [2024-11-14 03:47:32,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291214393] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:32,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1122313408] [2024-11-14 03:47:32,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:47:32,762 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:47:32,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:47:32,764 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:47:32,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-14 03:47:35,631 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:47:35,632 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:47:35,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:47:35,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:47:35,728 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 03:47:35,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1122313408] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:35,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680039742] [2024-11-14 03:47:35,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:47:35,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:47:35,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:47:35,972 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:47:35,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 03:47:36,795 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:47:36,795 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:47:36,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:47:36,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:47:36,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:37,693 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:47:37,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680039742] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:37,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:47:37,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 9, 9] total 35 [2024-11-14 03:47:37,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606380564] [2024-11-14 03:47:37,694 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:47:37,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-14 03:47:37,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:47:37,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-14 03:47:37,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 03:47:37,696 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) [2024-11-14 03:47:42,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:42,215 INFO L93 Difference]: Finished difference Result 448 states and 545 transitions. [2024-11-14 03:47:42,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-14 03:47:42,217 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 [2024-11-14 03:47:42,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:42,221 INFO L225 Difference]: With dead ends: 448 [2024-11-14 03:47:42,221 INFO L226 Difference]: Without dead ends: 442 [2024-11-14 03:47:42,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 831 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1393, Invalid=4157, Unknown=0, NotChecked=0, Total=5550 [2024-11-14 03:47:42,224 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 44 mSDsluCounter, 3770 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:42,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3996 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:47:42,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-14 03:47:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 438. [2024-11-14 03:47:42,237 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) [2024-11-14 03:47:42,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 525 transitions. [2024-11-14 03:47:42,240 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 525 transitions. Word has length 145 [2024-11-14 03:47:42,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:42,241 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 525 transitions. [2024-11-14 03:47:42,241 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) [2024-11-14 03:47:42,241 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 525 transitions. [2024-11-14 03:47:42,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 03:47:42,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:42,246 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] [2024-11-14 03:47:42,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 03:47:42,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:42,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-14 03:47:42,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:47:42,847 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:47:42,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:42,847 INFO L85 PathProgramCache]: Analyzing trace with hash -775762212, now seen corresponding path program 3 times [2024-11-14 03:47:42,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:47:42,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185186868] [2024-11-14 03:47:42,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:47:42,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:47:42,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:47:42,851 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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) [2024-11-14 03:47:42,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/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 [2024-11-14 03:47:50,393 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-14 03:47:50,394 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:47:50,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 03:47:50,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:47:51,437 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:47:54,596 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:47:54,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185186868] [2024-11-14 03:47:54,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185186868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:54,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1939010748] [2024-11-14 03:47:54,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:47:54,596 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:47:54,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:47:54,599 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:47:54,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-14 03:58:35,169 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-14 03:58:35,169 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:58:35,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 03:58:35,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:58:35,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:36,105 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:58:36,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1939010748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:36,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375257726] [2024-11-14 03:58:36,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:58:36,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:36,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:36,108 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:36,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b010e0-8be7-4ea5-8c01-d1c3a5a09861/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process