./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.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_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:28:25,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:28:26,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 04:28:26,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:28:26,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:28:26,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:28:26,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:28:26,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:28:26,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:28:26,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:28:26,096 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:28:26,096 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:28:26,096 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:28:26,097 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:28:26,097 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:28:26,097 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:28:26,097 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:28:26,097 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:28:26,097 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:28:26,097 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:28:26,097 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:28:26,098 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:28:26,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 04:28:26,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 04:28:26,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:28:26,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:28:26,098 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:28:26,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:28:26,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:28:26,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:28:26,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:28:26,099 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 04:28:26,099 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 04:28:26,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:28:26,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:28:26,099 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:28:26,100 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:28:26,100 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:28:26,100 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:28:26,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:28:26,100 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:28:26,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:28:26,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:28:26,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:28:26,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:28:26,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:28:26,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:28:26,101 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:28:26,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:28:26,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:28:26,102 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:28:26,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:28:26,102 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_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2024-11-14 04:28:26,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:28:26,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:28:26,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:28:26,453 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:28:26,454 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:28:26,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i Unable to find full path for "g++" [2024-11-14 04:28:28,575 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:28:29,124 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:28:29,125 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2024-11-14 04:28:29,156 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/data/5cba81fce/93061927492d4bf9bc46a28d3ca58c07/FLAG645e0aaa3 [2024-11-14 04:28:29,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/data/5cba81fce/93061927492d4bf9bc46a28d3ca58c07 [2024-11-14 04:28:29,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:28:29,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:28:29,189 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:28:29,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:28:29,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:28:29,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:28:29" (1/1) ... [2024-11-14 04:28:29,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f19993e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:29, skipping insertion in model container [2024-11-14 04:28:29,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:28:29" (1/1) ... [2024-11-14 04:28:29,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:28:30,035 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 04:28:30,097 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 04:28:30,100 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 04:28:30,104 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 04:28:30,111 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 04:28:30,154 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 04:28:30,154 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 04:28:30,158 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 04:28:30,158 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 04:28:30,165 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 04:28:30,171 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 04:28:30,174 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 04:28:30,177 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 04:28:30,187 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 04:28:30,188 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 04:28:30,195 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 04:28:30,200 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 04:28:30,201 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 04:28:30,204 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:28:30,216 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 04:28:30,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:28:30,265 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 04:28:30,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76da6ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:30, skipping insertion in model container [2024-11-14 04:28:30,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:28:30,267 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 04:28:30,269 INFO L158 Benchmark]: Toolchain (without parser) took 1082.83ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 93.8MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:28:30,269 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:28:30,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1078.19ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 93.8MB in the end (delta: 21.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:28:30,272 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1078.19ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 93.8MB in the end (delta: 21.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: 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_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:28:33,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:28:33,289 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 04:28:33,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:28:33,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:28:33,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:28:33,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:28:33,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:28:33,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:28:33,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:28:33,350 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:28:33,350 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:28:33,350 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:28:33,351 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:28:33,351 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:28:33,351 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:28:33,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 04:28:33,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 04:28:33,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:28:33,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:28:33,352 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:28:33,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:28:33,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:28:33,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:28:33,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:28:33,352 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 04:28:33,352 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 04:28:33,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:28:33,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:28:33,353 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:28:33,353 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:28:33,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:28:33,353 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:28:33,353 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:28:33,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:28:33,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:28:33,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:28:33,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:28:33,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:28:33,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:28:33,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:28:33,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:28:33,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:28:33,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:28:33,358 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:28:33,358 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:28:33,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:28:33,359 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:28:33,359 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_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2024-11-14 04:28:33,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:28:33,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:28:33,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:28:33,761 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:28:33,762 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:28:33,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i Unable to find full path for "g++" [2024-11-14 04:28:35,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:28:36,347 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:28:36,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2024-11-14 04:28:36,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/data/f5c9abd9f/56d11527aea24f18b1a74f7f8e646714/FLAG7e79e07de [2024-11-14 04:28:36,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/data/f5c9abd9f/56d11527aea24f18b1a74f7f8e646714 [2024-11-14 04:28:36,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:28:36,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:28:36,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:28:36,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:28:36,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:28:36,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:28:36" (1/1) ... [2024-11-14 04:28:36,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447fb4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:36, skipping insertion in model container [2024-11-14 04:28:36,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:28:36" (1/1) ... [2024-11-14 04:28:36,497 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:28:37,122 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 04:28:37,184 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 04:28:37,188 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 04:28:37,198 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 04:28:37,215 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 04:28:37,287 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 04:28:37,287 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 04:28:37,291 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 04:28:37,291 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 04:28:37,295 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 04:28:37,297 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 04:28:37,298 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 04:28:37,300 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 04:28:37,305 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 04:28:37,307 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 04:28:37,310 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 04:28:37,312 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 04:28:37,313 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 04:28:37,318 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 04:28:37,327 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 04:28:37,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:28:37,365 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 04:28:37,380 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:28:37,429 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 04:28:37,447 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 04:28:37,450 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 04:28:37,453 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 04:28:37,460 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 04:28:37,493 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 04:28:37,494 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:28:37,497 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:28:37,498 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 04:28:37,501 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:28:37,502 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 04:28:37,503 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:28:37,504 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 04:28:37,508 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 04:28:37,510 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 04:28:37,512 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 04:28:37,513 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:28:37,514 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 04:28:37,515 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 04:28:37,523 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 04:28:37,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:28:37,531 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:28:37,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:28:37,764 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:28:37,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37 WrapperNode [2024-11-14 04:28:37,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:28:37,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:28:37,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:28:37,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:28:37,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:37,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:37,875 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1193 [2024-11-14 04:28:37,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:28:37,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:28:37,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:28:37,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:28:37,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:37,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:37,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:37,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:37,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:37,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:37,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:37,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:38,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:28:38,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:28:38,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:28:38,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:28:38,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (1/1) ... [2024-11-14 04:28:38,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:28:38,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:28:38,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:28:38,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:28:38,072 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-14 04:28:38,074 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-14 04:28:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 04:28:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 04:28:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:28:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:28:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:28:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 04:28:38,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:28:38,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 04:28:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-14 04:28:38,076 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-14 04:28:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:28:38,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:28:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 04:28:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:28:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-14 04:28:38,077 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-14 04:28:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:28:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-14 04:28:38,077 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-14 04:28:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:28:38,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:28:38,397 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:28:38,400 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:28:44,660 INFO L? ?]: Removed 169 outVars from TransFormulas that were not future-live. [2024-11-14 04:28:44,661 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:28:44,694 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:28:44,694 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-14 04:28:44,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:28:44 BoogieIcfgContainer [2024-11-14 04:28:44,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:28:44,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:28:44,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:28:44,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:28:44,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:28:36" (1/3) ... [2024-11-14 04:28:44,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47544527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:28:44, skipping insertion in model container [2024-11-14 04:28:44,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:28:37" (2/3) ... [2024-11-14 04:28:44,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47544527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:28:44, skipping insertion in model container [2024-11-14 04:28:44,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:28:44" (3/3) ... [2024-11-14 04:28:44,714 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2024-11-14 04:28:44,731 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:28:44,733 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_test6-2.i that has 6 procedures, 268 locations, 1 initial locations, 41 loop locations, and 2 error locations. [2024-11-14 04:28:44,793 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:28:44,811 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;@b52e7fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:28:44,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 04:28:44,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 268 states, 241 states have (on average 1.6099585062240664) internal successors, (388), 246 states have internal predecessors, (388), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 04:28:44,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 04:28:44,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:44,828 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:44,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:28:44,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash 408885816, now seen corresponding path program 1 times [2024-11-14 04:28:44,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:28:44,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73645636] [2024-11-14 04:28:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:44,845 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 04:28:44,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:28:44,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:28:44,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:28:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:45,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:28:45,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:28:45,177 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 04:28:45,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:28:45,179 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:28:45,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73645636] [2024-11-14 04:28:45,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73645636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:28:45,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:28:45,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:28:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204639236] [2024-11-14 04:28:45,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:45,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:28:45,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:28:45,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:28:45,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:28:45,227 INFO L87 Difference]: Start difference. First operand has 268 states, 241 states have (on average 1.6099585062240664) internal successors, (388), 246 states have internal predecessors, (388), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 04:28:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:45,289 INFO L93 Difference]: Finished difference Result 263 states and 341 transitions. [2024-11-14 04:28:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:28:45,292 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 10 [2024-11-14 04:28:45,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:45,305 INFO L225 Difference]: With dead ends: 263 [2024-11-14 04:28:45,306 INFO L226 Difference]: Without dead ends: 261 [2024-11-14 04:28:45,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:28:45,314 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:45,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:28:45,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-14 04:28:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2024-11-14 04:28:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 236 states have (on average 1.2923728813559323) internal successors, (305), 241 states have internal predecessors, (305), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 04:28:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 339 transitions. [2024-11-14 04:28:45,408 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 339 transitions. Word has length 10 [2024-11-14 04:28:45,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:45,408 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 339 transitions. [2024-11-14 04:28:45,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 04:28:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 339 transitions. [2024-11-14 04:28:45,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 04:28:45,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:45,409 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:45,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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)] Ended with exit code 0 [2024-11-14 04:28:45,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:28:45,610 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:28:45,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:45,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1811216814, now seen corresponding path program 1 times [2024-11-14 04:28:45,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:28:45,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236188845] [2024-11-14 04:28:45,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:45,612 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 04:28:45,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:28:45,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:28:45,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:28:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:45,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:28:45,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:28:46,058 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 04:28:46,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:28:46,062 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:28:46,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236188845] [2024-11-14 04:28:46,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236188845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:28:46,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:28:46,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:28:46,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759321191] [2024-11-14 04:28:46,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:46,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:28:46,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:28:46,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:28:46,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:28:46,065 INFO L87 Difference]: Start difference. First operand 261 states and 339 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 04:28:48,905 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 04:28:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:51,643 INFO L93 Difference]: Finished difference Result 416 states and 543 transitions. [2024-11-14 04:28:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:28:51,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 12 [2024-11-14 04:28:51,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:51,647 INFO L225 Difference]: With dead ends: 416 [2024-11-14 04:28:51,647 INFO L226 Difference]: Without dead ends: 416 [2024-11-14 04:28:51,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:28:51,648 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 185 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:51,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 968 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 123 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2024-11-14 04:28:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-14 04:28:51,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 380. [2024-11-14 04:28:51,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 352 states have (on average 1.2954545454545454) internal successors, (456), 357 states have internal predecessors, (456), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 04:28:51,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 496 transitions. [2024-11-14 04:28:51,678 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 496 transitions. Word has length 12 [2024-11-14 04:28:51,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:51,678 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 496 transitions. [2024-11-14 04:28:51,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 04:28:51,678 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 496 transitions. [2024-11-14 04:28:51,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 04:28:51,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:51,679 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:51,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 04:28:51,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:28:51,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:28:51,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash -538474584, now seen corresponding path program 1 times [2024-11-14 04:28:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:28:51,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924514128] [2024-11-14 04:28:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:51,881 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 04:28:51,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:28:51,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:28:51,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:28:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:52,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:28:52,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:28:52,224 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:28:52,226 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:28:52,226 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:28:52,237 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 04:28:52,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:28:52,331 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 04:28:52,357 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 04:28:52,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:28:52,357 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:28:52,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924514128] [2024-11-14 04:28:52,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924514128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:28:52,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:28:52,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:28:52,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663497572] [2024-11-14 04:28:52,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:52,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:28:52,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:28:52,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:28:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:28:52,361 INFO L87 Difference]: Start difference. First operand 380 states and 496 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:28:56,310 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 04:29:01,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:01,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:01,384 INFO L93 Difference]: Finished difference Result 506 states and 668 transitions. [2024-11-14 04:29:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:29:01,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 04:29:01,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:01,388 INFO L225 Difference]: With dead ends: 506 [2024-11-14 04:29:01,389 INFO L226 Difference]: Without dead ends: 506 [2024-11-14 04:29:01,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:29:01,390 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 184 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:01,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 934 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2024-11-14 04:29:01,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-14 04:29:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 379. [2024-11-14 04:29:01,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 351 states have (on average 1.2934472934472934) internal successors, (454), 356 states have internal predecessors, (454), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 04:29:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 494 transitions. [2024-11-14 04:29:01,421 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 494 transitions. Word has length 15 [2024-11-14 04:29:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:01,421 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 494 transitions. [2024-11-14 04:29:01,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:29:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 494 transitions. [2024-11-14 04:29:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 04:29:01,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:01,422 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] [2024-11-14 04:29:01,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:01,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:01,623 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:29:01,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:01,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1928585326, now seen corresponding path program 1 times [2024-11-14 04:29:01,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:01,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713613986] [2024-11-14 04:29:01,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:01,624 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 04:29:01,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:01,629 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:01,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:02,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:29:02,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:02,087 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 04:29:02,087 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:29:02,087 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:02,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713613986] [2024-11-14 04:29:02,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713613986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:02,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:02,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:29:02,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012180675] [2024-11-14 04:29:02,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:02,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:29:02,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:02,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:29:02,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:29:02,093 INFO L87 Difference]: Start difference. First operand 379 states and 494 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:29:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:02,309 INFO L93 Difference]: Finished difference Result 385 states and 484 transitions. [2024-11-14 04:29:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:29:02,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-14 04:29:02,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:02,312 INFO L225 Difference]: With dead ends: 385 [2024-11-14 04:29:02,312 INFO L226 Difference]: Without dead ends: 385 [2024-11-14 04:29:02,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 04:29:02,313 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 30 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 908 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 04:29:02,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 908 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:29:02,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-14 04:29:02,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2024-11-14 04:29:02,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 357 states have (on average 1.2436974789915967) internal successors, (444), 362 states have internal predecessors, (444), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 04:29:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 484 transitions. [2024-11-14 04:29:02,334 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 484 transitions. Word has length 50 [2024-11-14 04:29:02,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:02,334 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 484 transitions. [2024-11-14 04:29:02,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:29:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 484 transitions. [2024-11-14 04:29:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 04:29:02,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:02,336 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] [2024-11-14 04:29:02,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:02,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:02,537 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:29:02,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:02,537 INFO L85 PathProgramCache]: Analyzing trace with hash 792614278, now seen corresponding path program 1 times [2024-11-14 04:29:02,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:02,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637722959] [2024-11-14 04:29:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:02,538 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 04:29:02,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:02,542 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:02,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:02,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:29:02,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:03,038 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 04:29:03,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:29:03,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:03,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637722959] [2024-11-14 04:29:03,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637722959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:03,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:03,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:29:03,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68994983] [2024-11-14 04:29:03,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:03,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:29:03,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:03,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:29:03,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:29:03,041 INFO L87 Difference]: Start difference. First operand 385 states and 484 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:29:03,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:03,246 INFO L93 Difference]: Finished difference Result 395 states and 494 transitions. [2024-11-14 04:29:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:29:03,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-14 04:29:03,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:03,249 INFO L225 Difference]: With dead ends: 395 [2024-11-14 04:29:03,250 INFO L226 Difference]: Without dead ends: 395 [2024-11-14 04:29:03,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:29:03,251 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 9 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:03,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1606 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:29:03,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-14 04:29:03,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-14 04:29:03,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 364 states have (on average 1.2417582417582418) internal successors, (452), 370 states have internal predecessors, (452), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-14 04:29:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 494 transitions. [2024-11-14 04:29:03,267 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 494 transitions. Word has length 50 [2024-11-14 04:29:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:03,268 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 494 transitions. [2024-11-14 04:29:03,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:29:03,268 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 494 transitions. [2024-11-14 04:29:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 04:29:03,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:03,275 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 04:29:03,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:03,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:03,476 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:29:03,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:03,476 INFO L85 PathProgramCache]: Analyzing trace with hash 249405952, now seen corresponding path program 1 times [2024-11-14 04:29:03,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:03,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447222292] [2024-11-14 04:29:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:03,477 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 04:29:03,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:03,479 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:03,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:04,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:29:04,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:29:04,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:29:04,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:04,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447222292] [2024-11-14 04:29:04,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447222292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:04,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:04,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:29:04,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939223795] [2024-11-14 04:29:04,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:04,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:29:04,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:04,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:29:04,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:29:04,312 INFO L87 Difference]: Start difference. First operand 395 states and 494 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:29:04,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:04,803 INFO L93 Difference]: Finished difference Result 403 states and 504 transitions. [2024-11-14 04:29:04,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:29:04,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2024-11-14 04:29:04,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:04,808 INFO L225 Difference]: With dead ends: 403 [2024-11-14 04:29:04,808 INFO L226 Difference]: Without dead ends: 403 [2024-11-14 04:29:04,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:29:04,809 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 20 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:04,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1455 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:29:04,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-14 04:29:04,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 399. [2024-11-14 04:29:04,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 366 states have (on average 1.2404371584699454) internal successors, (454), 373 states have internal predecessors, (454), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 19 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-14 04:29:04,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 499 transitions. [2024-11-14 04:29:04,840 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 499 transitions. Word has length 65 [2024-11-14 04:29:04,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:04,840 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 499 transitions. [2024-11-14 04:29:04,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:29:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 499 transitions. [2024-11-14 04:29:04,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 04:29:04,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:04,843 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] [2024-11-14 04:29:04,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:05,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:05,044 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:29:05,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:05,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1382830198, now seen corresponding path program 1 times [2024-11-14 04:29:05,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:05,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452905819] [2024-11-14 04:29:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:05,045 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 04:29:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:05,049 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:05,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:05,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:29:05,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:29:05,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:29:05,590 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:05,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452905819] [2024-11-14 04:29:05,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452905819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:05,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:05,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:29:05,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257250566] [2024-11-14 04:29:05,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:05,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:29:05,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:05,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:29:05,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:29:05,593 INFO L87 Difference]: Start difference. First operand 399 states and 499 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:29:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:05,672 INFO L93 Difference]: Finished difference Result 403 states and 504 transitions. [2024-11-14 04:29:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:29:05,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 70 [2024-11-14 04:29:05,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:05,675 INFO L225 Difference]: With dead ends: 403 [2024-11-14 04:29:05,675 INFO L226 Difference]: Without dead ends: 403 [2024-11-14 04:29:05,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 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 04:29:05,676 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 0 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:05,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 967 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:29:05,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-14 04:29:05,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-14 04:29:05,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 369 states have (on average 1.2411924119241193) internal successors, (458), 377 states have internal predecessors, (458), 24 states have call successors, (24), 7 states have call predecessors, (24), 8 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2024-11-14 04:29:05,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 504 transitions. [2024-11-14 04:29:05,693 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 504 transitions. Word has length 70 [2024-11-14 04:29:05,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:05,693 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 504 transitions. [2024-11-14 04:29:05,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:29:05,693 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 504 transitions. [2024-11-14 04:29:05,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 04:29:05,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:05,695 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] [2024-11-14 04:29:05,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-14 04:29:05,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:05,896 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:29:05,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:05,896 INFO L85 PathProgramCache]: Analyzing trace with hash 994427521, now seen corresponding path program 1 times [2024-11-14 04:29:05,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:05,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902589090] [2024-11-14 04:29:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:05,897 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 04:29:05,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:05,899 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:05,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:06,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:29:06,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:29:06,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:29:06,719 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:06,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902589090] [2024-11-14 04:29:06,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902589090] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:06,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1612105959] [2024-11-14 04:29:06,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:06,719 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:29:06,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:29:06,724 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:29:06,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-14 04:29:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:07,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:29:07,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 04:29:07,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 04:29:08,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1612105959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:08,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903847979] [2024-11-14 04:29:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:08,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:08,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:08,523 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:08,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 04:29:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:09,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:29:09,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 04:29:09,112 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:29:09,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903847979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:09,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 04:29:09,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 7, 7] total 18 [2024-11-14 04:29:09,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013370884] [2024-11-14 04:29:09,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:09,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:29:09,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:09,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:29:09,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:29:09,114 INFO L87 Difference]: Start difference. First operand 403 states and 504 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:29:09,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:09,510 INFO L93 Difference]: Finished difference Result 1071 states and 1360 transitions. [2024-11-14 04:29:09,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:29:09,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2024-11-14 04:29:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:09,517 INFO L225 Difference]: With dead ends: 1071 [2024-11-14 04:29:09,517 INFO L226 Difference]: Without dead ends: 1071 [2024-11-14 04:29:09,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:29:09,518 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 597 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:09,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1679 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:29:09,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-14 04:29:09,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 985. [2024-11-14 04:29:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 917 states have (on average 1.257360959651036) internal successors, (1153), 931 states have internal predecessors, (1153), 48 states have call successors, (48), 14 states have call predecessors, (48), 18 states have return successors, (50), 39 states have call predecessors, (50), 44 states have call successors, (50) [2024-11-14 04:29:09,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1251 transitions. [2024-11-14 04:29:09,561 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1251 transitions. Word has length 71 [2024-11-14 04:29:09,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:09,561 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1251 transitions. [2024-11-14 04:29:09,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:29:09,562 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1251 transitions. [2024-11-14 04:29:09,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 04:29:09,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:09,564 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 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 04:29:09,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 04:29:09,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-14 04:29:09,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:10,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:10,167 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:29:10,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash -647467510, now seen corresponding path program 1 times [2024-11-14 04:29:10,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:10,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528094927] [2024-11-14 04:29:10,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:10,169 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 04:29:10,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:10,175 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:10,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:10,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:29:10,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 04:29:11,021 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:11,214 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 04:29:11,214 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:11,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528094927] [2024-11-14 04:29:11,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528094927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:11,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [161008693] [2024-11-14 04:29:11,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:11,215 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:29:11,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:29:11,217 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:29:11,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-14 04:29:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:12,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:29:12,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 04:29:12,497 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 04:29:13,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [161008693] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:13,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666142294] [2024-11-14 04:29:13,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:13,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:13,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:13,370 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:13,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 04:29:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:14,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:29:14,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 04:29:14,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 04:29:14,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666142294] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:14,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:29:14,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 8, 10, 8, 7] total 23 [2024-11-14 04:29:14,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034035447] [2024-11-14 04:29:14,686 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:29:14,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:29:14,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:14,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:29:14,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:29:14,689 INFO L87 Difference]: Start difference. First operand 985 states and 1251 transitions. Second operand has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 20 states have internal predecessors, (247), 11 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (22), 9 states have call predecessors, (22), 11 states have call successors, (22) [2024-11-14 04:29:23,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:23,539 INFO L93 Difference]: Finished difference Result 5240 states and 6746 transitions. [2024-11-14 04:29:23,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-14 04:29:23,541 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 20 states have internal predecessors, (247), 11 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (22), 9 states have call predecessors, (22), 11 states have call successors, (22) Word has length 98 [2024-11-14 04:29:23,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:23,561 INFO L225 Difference]: With dead ends: 5240 [2024-11-14 04:29:23,562 INFO L226 Difference]: Without dead ends: 5240 [2024-11-14 04:29:23,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4106 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2371, Invalid=8971, Unknown=0, NotChecked=0, Total=11342 [2024-11-14 04:29:23,566 INFO L432 NwaCegarLoop]: 1152 mSDtfsCounter, 8747 mSDsluCounter, 10928 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 947 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8785 SdHoareTripleChecker+Valid, 12080 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 947 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:23,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8785 Valid, 12080 Invalid, 2433 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [947 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-14 04:29:23,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2024-11-14 04:29:23,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 3328. [2024-11-14 04:29:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3127 states have (on average 1.2718260313399425) internal successors, (3977), 3159 states have internal predecessors, (3977), 144 states have call successors, (144), 51 states have call predecessors, (144), 55 states have return successors, (150), 117 states have call predecessors, (150), 140 states have call successors, (150) [2024-11-14 04:29:23,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4271 transitions. [2024-11-14 04:29:23,701 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4271 transitions. Word has length 98 [2024-11-14 04:29:23,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:23,702 INFO L471 AbstractCegarLoop]: Abstraction has 3328 states and 4271 transitions. [2024-11-14 04:29:23,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 20 states have internal predecessors, (247), 11 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (22), 9 states have call predecessors, (22), 11 states have call successors, (22) [2024-11-14 04:29:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4271 transitions. [2024-11-14 04:29:23,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 04:29:23,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:23,707 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:23,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-14 04:29:23,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 04:29:24,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:24,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:24,308 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:29:24,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash 590830689, now seen corresponding path program 1 times [2024-11-14 04:29:24,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:24,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002922909] [2024-11-14 04:29:24,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:24,310 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 04:29:24,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:24,314 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:24,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:25,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:29:25,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:25,329 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 04:29:25,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:25,783 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 04:29:25,783 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:25,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002922909] [2024-11-14 04:29:25,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002922909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:25,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [53933361] [2024-11-14 04:29:25,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:25,784 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:29:25,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:29:25,786 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:29:25,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-14 04:29:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:26,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:29:26,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 04:29:27,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 04:29:27,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [53933361] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:27,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99314157] [2024-11-14 04:29:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:27,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:27,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:27,248 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:27,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 04:29:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:27,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:29:27,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:27,905 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:29:27,905 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:29:27,906 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:29:27,908 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 04:29:28,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:29:28,022 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 04:29:28,069 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-14 04:29:28,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:29:28,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99314157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:28,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 04:29:28,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8, 8, 8] total 16 [2024-11-14 04:29:28,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918798871] [2024-11-14 04:29:28,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:28,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:29:28,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:28,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:29:28,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-14 04:29:28,071 INFO L87 Difference]: Start difference. First operand 3328 states and 4271 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 04:29:30,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:33,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:33,552 INFO L93 Difference]: Finished difference Result 4128 states and 5355 transitions. [2024-11-14 04:29:33,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:29:33,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 110 [2024-11-14 04:29:33,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:33,590 INFO L225 Difference]: With dead ends: 4128 [2024-11-14 04:29:33,591 INFO L226 Difference]: Without dead ends: 4128 [2024-11-14 04:29:33,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:29:33,592 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 141 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:33,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 847 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-14 04:29:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2024-11-14 04:29:33,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 3346. [2024-11-14 04:29:33,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 3145 states have (on average 1.2702702702702702) internal successors, (3995), 3177 states have internal predecessors, (3995), 144 states have call successors, (144), 51 states have call predecessors, (144), 55 states have return successors, (150), 117 states have call predecessors, (150), 140 states have call successors, (150) [2024-11-14 04:29:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 4289 transitions. [2024-11-14 04:29:33,679 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 4289 transitions. Word has length 110 [2024-11-14 04:29:33,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:33,680 INFO L471 AbstractCegarLoop]: Abstraction has 3346 states and 4289 transitions. [2024-11-14 04:29:33,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 04:29:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 4289 transitions. [2024-11-14 04:29:33,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 04:29:33,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:33,682 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-14 04:29:33,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-11-14 04:29:33,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:34,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 04:29:34,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:34,283 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:29:34,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:34,284 INFO L85 PathProgramCache]: Analyzing trace with hash 207584723, now seen corresponding path program 1 times [2024-11-14 04:29:34,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:34,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450113899] [2024-11-14 04:29:34,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:34,285 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 04:29:34,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:34,287 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:34,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:35,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:29:35,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 04:29:35,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:35,752 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 04:29:35,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:35,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450113899] [2024-11-14 04:29:35,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450113899] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:35,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [391824096] [2024-11-14 04:29:35,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:35,753 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:29:35,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:29:35,757 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:29:35,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-14 04:29:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:37,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:29:37,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 04:29:37,364 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 04:29:37,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [391824096] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:37,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830202162] [2024-11-14 04:29:37,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:37,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:37,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:37,581 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:37,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 04:29:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:38,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:29:38,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:38,594 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 04:29:38,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 04:29:38,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830202162] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:38,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:29:38,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 6, 6] total 20 [2024-11-14 04:29:38,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322846603] [2024-11-14 04:29:38,951 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:29:38,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 04:29:38,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 04:29:38,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-14 04:29:38,953 INFO L87 Difference]: Start difference. First operand 3346 states and 4289 transitions. Second operand has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 04:29:40,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:40,661 INFO L93 Difference]: Finished difference Result 3535 states and 4541 transitions. [2024-11-14 04:29:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 04:29:40,662 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2024-11-14 04:29:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:40,671 INFO L225 Difference]: With dead ends: 3535 [2024-11-14 04:29:40,671 INFO L226 Difference]: Without dead ends: 3472 [2024-11-14 04:29:40,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=403, Invalid=1079, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 04:29:40,672 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 22 mSDsluCounter, 2560 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:40,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2884 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:29:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2024-11-14 04:29:40,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 3430. [2024-11-14 04:29:40,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3229 states have (on average 1.2719108082997832) internal successors, (4107), 3261 states have internal predecessors, (4107), 144 states have call successors, (144), 51 states have call predecessors, (144), 55 states have return successors, (150), 117 states have call predecessors, (150), 140 states have call successors, (150) [2024-11-14 04:29:40,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4401 transitions. [2024-11-14 04:29:40,780 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4401 transitions. Word has length 117 [2024-11-14 04:29:40,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:40,780 INFO L471 AbstractCegarLoop]: Abstraction has 3430 states and 4401 transitions. [2024-11-14 04:29:40,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 04:29:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4401 transitions. [2024-11-14 04:29:40,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 04:29:40,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:40,783 INFO L215 NwaCegarLoop]: trace histogram [18, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-14 04:29:40,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 04:29:40,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-14 04:29:41,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-14 04:29:41,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:29:41,387 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:29:41,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:41,390 INFO L85 PathProgramCache]: Analyzing trace with hash 964312147, now seen corresponding path program 2 times [2024-11-14 04:29:41,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:41,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897452773] [2024-11-14 04:29:41,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:29:41,392 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 04:29:41,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:41,395 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:41,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:29:43,415 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:29:43,415 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:29:43,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:29:43,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:43,942 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 128 proven. 55 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-14 04:29:43,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 04:29:45,287 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:45,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897452773] [2024-11-14 04:29:45,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897452773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:45,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1952212674] [2024-11-14 04:29:45,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:29:45,288 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:29:45,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:29:45,290 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:29:45,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-14 04:30:42,985 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:30:42,985 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:30:43,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:30:43,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:30:43,201 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 128 proven. 55 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-14 04:30:43,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:30:43,504 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 04:30:43,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1952212674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:30:43,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745909479] [2024-11-14 04:30:43,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:30:43,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:30:43,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:30:43,508 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:30:43,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 04:35:18,984 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:35:18,985 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:35:19,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:35:19,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:35:19,221 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 140 proven. 36 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-14 04:35:19,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:35:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 102 proven. 48 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-14 04:35:20,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745909479] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:35:20,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:35:20,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 12, 12] total 38 [2024-11-14 04:35:20,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498231468] [2024-11-14 04:35:20,643 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:35:20,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-14 04:35:20,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:35:20,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-14 04:35:20,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:35:20,646 INFO L87 Difference]: Start difference. First operand 3430 states and 4401 transitions. Second operand has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 04:35:29,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:35:29,591 INFO L93 Difference]: Finished difference Result 3703 states and 4828 transitions. [2024-11-14 04:35:29,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-14 04:35:29,593 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-11-14 04:35:29,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:35:29,605 INFO L225 Difference]: With dead ends: 3703 [2024-11-14 04:35:29,605 INFO L226 Difference]: Without dead ends: 3661 [2024-11-14 04:35:29,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1675, Invalid=4805, Unknown=0, NotChecked=0, Total=6480 [2024-11-14 04:35:29,608 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 46 mSDsluCounter, 6705 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 7029 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:35:29,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 7029 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 04:35:29,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2024-11-14 04:35:29,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3598. [2024-11-14 04:35:29,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3397 states have (on average 1.2831910509272888) internal successors, (4359), 3429 states have internal predecessors, (4359), 144 states have call successors, (144), 51 states have call predecessors, (144), 55 states have return successors, (150), 117 states have call predecessors, (150), 140 states have call successors, (150) [2024-11-14 04:35:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 4653 transitions. [2024-11-14 04:35:29,685 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 4653 transitions. Word has length 129 [2024-11-14 04:35:29,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:35:29,686 INFO L471 AbstractCegarLoop]: Abstraction has 3598 states and 4653 transitions. [2024-11-14 04:35:29,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 04:35:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 4653 transitions. [2024-11-14 04:35:29,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-14 04:35:29,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:35:29,688 INFO L215 NwaCegarLoop]: trace histogram [42, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-14 04:35:29,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 04:35:29,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:35:30,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-14 04:35:30,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:35:30,289 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:35:30,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:35:30,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1711073619, now seen corresponding path program 3 times [2024-11-14 04:35:30,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:35:30,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682351458] [2024-11-14 04:35:30,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:35:30,291 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 04:35:30,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:35:30,293 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:35:30,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/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 04:35:48,575 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-14 04:35:48,575 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:35:48,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 04:35:48,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:35:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 548 proven. 210 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-14 04:35:50,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:35:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 486 proven. 234 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-14 04:35:54,188 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:35:54,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682351458] [2024-11-14 04:35:54,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682351458] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:35:54,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [681096650] [2024-11-14 04:35:54,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:35:54,189 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:35:54,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:35:54,191 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:35:54,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84625bea-478b-4c8d-8c66-d927d6c9c91d/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process