./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:44:23,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:44:23,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 04:44:23,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:44:23,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:44:23,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:44:23,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:44:23,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:44:23,276 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:44:23,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:44:23,276 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:44:23,276 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:44:23,276 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:44:23,276 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:44:23,276 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:44:23,277 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:44:23,277 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:44:23,277 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:44:23,277 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:44:23,277 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:44:23,278 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:44:23,278 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:44:23,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 04:44:23,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 04:44:23,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:44:23,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:44:23,279 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:44:23,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:44:23,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:44:23,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:44:23,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:44:23,280 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 04:44:23,280 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 04:44:23,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:44:23,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:44:23,281 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:44:23,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:44:23,281 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:44:23,281 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:44:23,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:44:23,282 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:44:23,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:44:23,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:44:23,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:44:23,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:44:23,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:44:23,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:44:23,284 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:44:23,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:44:23,284 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:44:23,284 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:44:23,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:44:23,286 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_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2024-11-14 04:44:23,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:44:23,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:44:23,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:44:23,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:44:23,675 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:44:23,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i Unable to find full path for "g++" [2024-11-14 04:44:25,913 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:44:26,494 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:44:26,495 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2024-11-14 04:44:26,535 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/data/062654616/792ec0923d3c47329253f01ad53206fa/FLAG29dd22ddf [2024-11-14 04:44:26,562 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/data/062654616/792ec0923d3c47329253f01ad53206fa [2024-11-14 04:44:26,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:44:26,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:44:26,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:44:26,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:44:26,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:44:26,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:44:26" (1/1) ... [2024-11-14 04:44:26,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3764315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:26, skipping insertion in model container [2024-11-14 04:44:26,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:44:26" (1/1) ... [2024-11-14 04:44:26,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:44:27,377 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 04:44:27,433 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 04:44:27,438 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 04:44:27,447 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 04:44:27,465 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 04:44:27,545 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 04:44:27,549 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 04:44:27,552 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:44:27,554 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 04:44:27,559 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:44:27,564 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 04:44:27,567 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 04:44:27,568 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 04:44:27,576 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 04:44:27,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:44:27,622 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 04:44:27,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65913d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:27, skipping insertion in model container [2024-11-14 04:44:27,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:44:27,629 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 04:44:27,632 INFO L158 Benchmark]: Toolchain (without parser) took 1063.42ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 70.8MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 04:44:27,632 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:44:27,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1058.90ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 70.8MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 04:44:27,636 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1058.90ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 70.8MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. 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_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:44:30,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:44:30,923 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 04:44:30,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:44:30,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:44:30,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:44:30,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:44:30,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:44:30,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:44:30,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:44:30,972 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:44:30,972 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:44:30,972 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:44:30,973 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:44:30,973 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:44:30,973 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:44:30,973 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 04:44:30,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 04:44:30,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:44:30,974 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:44:30,974 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:44:30,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:44:30,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:44:30,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:44:30,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:44:30,977 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 04:44:30,977 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 04:44:30,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:44:30,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:44:30,977 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:44:30,977 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:44:30,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:44:30,978 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:44:30,978 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:44:30,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:44:30,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:44:30,979 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:44:30,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:44:30,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:44:30,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:44:30,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:44:30,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:44:30,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:44:30,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:44:30,981 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:44:30,981 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:44:30,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:44:30,981 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:44:30,981 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_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2024-11-14 04:44:31,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:44:31,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:44:31,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:44:31,407 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:44:31,408 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:44:31,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i Unable to find full path for "g++" [2024-11-14 04:44:33,519 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:44:34,021 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:44:34,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2024-11-14 04:44:34,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/data/0c21ff3a6/b21a16cb9c0f4cd29947bed2205b6a89/FLAG21fb940af [2024-11-14 04:44:34,084 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/data/0c21ff3a6/b21a16cb9c0f4cd29947bed2205b6a89 [2024-11-14 04:44:34,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:44:34,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:44:34,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:44:34,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:44:34,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:44:34,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:44:34" (1/1) ... [2024-11-14 04:44:34,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72def5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:34, skipping insertion in model container [2024-11-14 04:44:34,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:44:34" (1/1) ... [2024-11-14 04:44:34,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:44:35,100 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 04:44:35,151 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 04:44:35,155 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 04:44:35,159 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 04:44:35,167 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:44:35,206 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 04:44:35,206 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 04:44:35,209 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:44:35,209 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:44:35,213 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 04:44:35,214 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:44:35,216 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 04:44:35,216 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 04:44:35,221 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 04:44:35,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:44:35,246 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 04:44:35,275 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:44:35,376 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 04:44:35,430 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 04:44:35,433 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 04:44:35,437 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:44:35,442 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 04:44:35,485 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 04:44:35,489 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 04:44:35,493 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 04:44:35,494 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 04:44:35,498 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 04:44:35,500 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:44:35,503 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 04:44:35,508 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 04:44:35,517 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 04:44:35,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:44:35,532 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:44:35,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:44:35,814 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:44:35,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35 WrapperNode [2024-11-14 04:44:35,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:44:35,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:44:35,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:44:35,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:44:35,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:35,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:35,986 INFO L138 Inliner]: procedures = 286, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1036 [2024-11-14 04:44:35,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:44:35,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:44:35,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:44:35,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:44:36,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:36,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:36,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:36,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:36,071 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:36,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:36,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:36,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:36,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:44:36,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:44:36,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:44:36,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:44:36,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (1/1) ... [2024-11-14 04:44:36,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:44:36,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:36,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:44:36,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:44:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-14 04:44:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-14 04:44:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 04:44:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 04:44:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:44:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:44:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:44:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 04:44:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:44:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 04:44:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-14 04:44:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-14 04:44:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:44:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:44:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 04:44:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:44:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-14 04:44:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-14 04:44:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:44:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-14 04:44:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-14 04:44:36,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:44:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:44:36,586 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:44:36,589 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:44:44,835 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-14 04:44:44,836 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:44:44,865 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:44:44,867 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-14 04:44:44,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:44:44 BoogieIcfgContainer [2024-11-14 04:44:44,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:44:44,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:44:44,871 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:44:44,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:44:44,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:44:34" (1/3) ... [2024-11-14 04:44:44,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad17418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:44:44, skipping insertion in model container [2024-11-14 04:44:44,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:35" (2/3) ... [2024-11-14 04:44:44,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad17418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:44:44, skipping insertion in model container [2024-11-14 04:44:44,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:44:44" (3/3) ... [2024-11-14 04:44:44,881 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-1.i [2024-11-14 04:44:44,899 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:44:44,902 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test6-1.i that has 6 procedures, 234 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2024-11-14 04:44:44,967 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:44:44,984 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;@3079cca5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:44:44,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 04:44:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 209 states have (on average 1.6076555023923444) internal successors, (336), 214 states have internal predecessors, (336), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 04:44:44,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 04:44:45,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:45,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:45,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:44:45,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:45,006 INFO L85 PathProgramCache]: Analyzing trace with hash 408763769, now seen corresponding path program 1 times [2024-11-14 04:44:45,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:44:45,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785580480] [2024-11-14 04:44:45,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:45,017 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 04:44:45,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:44:45,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:45,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:45,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:44:45,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:45,329 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 04:44:45,329 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:44:45,330 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:44:45,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785580480] [2024-11-14 04:44:45,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785580480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:45,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:45,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:44:45,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840687908] [2024-11-14 04:44:45,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:45,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:44:45,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:44:45,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:44:45,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:44:45,377 INFO L87 Difference]: Start difference. First operand has 234 states, 209 states have (on average 1.6076555023923444) internal successors, (336), 214 states have internal predecessors, (336), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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 04:44:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:45,436 INFO L93 Difference]: Finished difference Result 229 states and 294 transitions. [2024-11-14 04:44:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:44:45,439 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 04:44:45,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:45,452 INFO L225 Difference]: With dead ends: 229 [2024-11-14 04:44:45,452 INFO L226 Difference]: Without dead ends: 227 [2024-11-14 04:44:45,454 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 04:44:45,459 INFO L432 NwaCegarLoop]: 294 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, 294 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 04:44:45,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:44:45,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-14 04:44:45,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-14 04:44:45,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 204 states have (on average 1.2843137254901962) internal successors, (262), 209 states have internal predecessors, (262), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 04:44:45,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 292 transitions. [2024-11-14 04:44:45,535 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 292 transitions. Word has length 10 [2024-11-14 04:44:45,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:45,536 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 292 transitions. [2024-11-14 04:44:45,536 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 04:44:45,536 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 292 transitions. [2024-11-14 04:44:45,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 04:44:45,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:45,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:45,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:45,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:45,741 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:44:45,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:45,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1811094767, now seen corresponding path program 1 times [2024-11-14 04:44:45,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:44:45,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529201136] [2024-11-14 04:44:45,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:45,742 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 04:44:45,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:44:45,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:45,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:46,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:44:46,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:46,207 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 04:44:46,207 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:44:46,207 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:44:46,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529201136] [2024-11-14 04:44:46,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529201136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:46,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:46,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:44:46,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798079173] [2024-11-14 04:44:46,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:46,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:44:46,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:44:46,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:44:46,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:44:46,214 INFO L87 Difference]: Start difference. First operand 227 states and 292 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 04:44:48,857 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 04:44:50,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:50,700 INFO L93 Difference]: Finished difference Result 343 states and 444 transitions. [2024-11-14 04:44:50,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:44:50,702 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 04:44:50,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:50,706 INFO L225 Difference]: With dead ends: 343 [2024-11-14 04:44:50,706 INFO L226 Difference]: Without dead ends: 343 [2024-11-14 04:44:50,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 04:44:50,707 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 139 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:50,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 791 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-14 04:44:50,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-14 04:44:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 339. [2024-11-14 04:44:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 316 states have (on average 1.2943037974683544) internal successors, (409), 321 states have internal predecessors, (409), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 04:44:50,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 439 transitions. [2024-11-14 04:44:50,744 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 439 transitions. Word has length 12 [2024-11-14 04:44:50,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:50,744 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 439 transitions. [2024-11-14 04:44:50,745 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 04:44:50,745 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 439 transitions. [2024-11-14 04:44:50,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 04:44:50,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:50,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:50,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:50,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:50,949 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:44:50,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:50,950 INFO L85 PathProgramCache]: Analyzing trace with hash -605980, now seen corresponding path program 1 times [2024-11-14 04:44:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:44:50,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204458234] [2024-11-14 04:44:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:50,951 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 04:44:50,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:44:50,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:50,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:51,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:44:51,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:51,242 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:44:51,243 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:44:51,244 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:44:51,254 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 04:44:51,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:44:51,337 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 04:44:51,358 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 04:44:51,359 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:44:51,359 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:44:51,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204458234] [2024-11-14 04:44:51,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204458234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:51,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:51,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:44:51,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930986469] [2024-11-14 04:44:51,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:51,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:44:51,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:44:51,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:44:51,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:44:51,361 INFO L87 Difference]: Start difference. First operand 339 states and 439 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 04:44:56,166 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 04:44:59,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:44:59,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:59,612 INFO L93 Difference]: Finished difference Result 439 states and 575 transitions. [2024-11-14 04:44:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:44:59,615 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 04:44:59,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:59,618 INFO L225 Difference]: With dead ends: 439 [2024-11-14 04:44:59,618 INFO L226 Difference]: Without dead ends: 439 [2024-11-14 04:44:59,623 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 04:44:59,628 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 156 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:59,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 738 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2024-11-14 04:44:59,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-14 04:44:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 338. [2024-11-14 04:44:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 315 states have (on average 1.2920634920634921) internal successors, (407), 320 states have internal predecessors, (407), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 04:44:59,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 437 transitions. [2024-11-14 04:44:59,681 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 437 transitions. Word has length 15 [2024-11-14 04:44:59,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:59,681 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 437 transitions. [2024-11-14 04:44:59,681 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 04:44:59,681 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 437 transitions. [2024-11-14 04:44:59,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 04:44:59,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:59,682 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 04:44:59,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:59,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:59,887 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:44:59,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:59,887 INFO L85 PathProgramCache]: Analyzing trace with hash 522733391, now seen corresponding path program 1 times [2024-11-14 04:44:59,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:44:59,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265133145] [2024-11-14 04:44:59,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:59,888 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 04:44:59,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:44:59,892 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:44:59,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:00,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:45:00,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:00,338 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 04:45:00,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:45:00,338 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:45:00,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265133145] [2024-11-14 04:45:00,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265133145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:00,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:45:00,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:45:00,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742004475] [2024-11-14 04:45:00,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:00,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:45:00,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:45:00,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:45:00,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:45:00,340 INFO L87 Difference]: Start difference. First operand 338 states and 437 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 04:45:00,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:00,540 INFO L93 Difference]: Finished difference Result 344 states and 427 transitions. [2024-11-14 04:45:00,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:45:00,541 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 04:45:00,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:00,543 INFO L225 Difference]: With dead ends: 344 [2024-11-14 04:45:00,543 INFO L226 Difference]: Without dead ends: 344 [2024-11-14 04:45:00,543 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 04:45:00,547 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 30 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 767 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 04:45:00,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 767 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:45:00,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-14 04:45:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-14 04:45:00,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 321 states have (on average 1.236760124610592) internal successors, (397), 326 states have internal predecessors, (397), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 04:45:00,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 427 transitions. [2024-11-14 04:45:00,582 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 427 transitions. Word has length 50 [2024-11-14 04:45:00,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:00,583 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 427 transitions. [2024-11-14 04:45:00,583 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 04:45:00,583 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 427 transitions. [2024-11-14 04:45:00,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 04:45:00,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:00,585 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 04:45:00,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:00,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:00,789 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:45:00,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:00,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1051034301, now seen corresponding path program 1 times [2024-11-14 04:45:00,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:45:00,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693668313] [2024-11-14 04:45:00,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:00,790 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 04:45:00,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:45:00,795 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:00,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:01,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:45:01,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:45:01,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:45:01,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:45:01,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693668313] [2024-11-14 04:45:01,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693668313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:01,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:45:01,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:45:01,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281299056] [2024-11-14 04:45:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:01,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:45:01,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:45:01,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:45:01,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:45:01,312 INFO L87 Difference]: Start difference. First operand 344 states and 427 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 04:45:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:01,503 INFO L93 Difference]: Finished difference Result 354 states and 437 transitions. [2024-11-14 04:45:01,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:45:01,505 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 04:45:01,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:01,508 INFO L225 Difference]: With dead ends: 354 [2024-11-14 04:45:01,508 INFO L226 Difference]: Without dead ends: 354 [2024-11-14 04:45:01,509 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 04:45:01,509 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 9 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1371 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 04:45:01,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1371 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:45:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-14 04:45:01,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2024-11-14 04:45:01,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 328 states have (on average 1.2347560975609757) internal successors, (405), 334 states have internal predecessors, (405), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 04:45:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 437 transitions. [2024-11-14 04:45:01,534 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 437 transitions. Word has length 50 [2024-11-14 04:45:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:01,535 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 437 transitions. [2024-11-14 04:45:01,535 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 04:45:01,535 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 437 transitions. [2024-11-14 04:45:01,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 04:45:01,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:01,539 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 04:45:01,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 04:45:01,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:01,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:45:01,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:01,740 INFO L85 PathProgramCache]: Analyzing trace with hash -807687427, now seen corresponding path program 1 times [2024-11-14 04:45:01,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:45:01,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977887580] [2024-11-14 04:45:01,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:01,741 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 04:45:01,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:45:01,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:01,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:02,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:45:02,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:02,527 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 04:45:02,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:45:02,527 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:45:02,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977887580] [2024-11-14 04:45:02,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977887580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:02,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:45:02,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:45:02,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096035258] [2024-11-14 04:45:02,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:02,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:45:02,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:45:02,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:45:02,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:45:02,531 INFO L87 Difference]: Start difference. First operand 354 states and 437 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 04:45:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:02,868 INFO L93 Difference]: Finished difference Result 362 states and 447 transitions. [2024-11-14 04:45:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:45:02,869 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 04:45:02,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:02,872 INFO L225 Difference]: With dead ends: 362 [2024-11-14 04:45:02,872 INFO L226 Difference]: Without dead ends: 362 [2024-11-14 04:45:02,874 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 04:45:02,875 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 20 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:02,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 990 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:45:02,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-14 04:45:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 358. [2024-11-14 04:45:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 330 states have (on average 1.2333333333333334) internal successors, (407), 337 states have internal predecessors, (407), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-14 04:45:02,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 442 transitions. [2024-11-14 04:45:02,895 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 442 transitions. Word has length 65 [2024-11-14 04:45:02,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:02,896 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 442 transitions. [2024-11-14 04:45:02,896 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 04:45:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 442 transitions. [2024-11-14 04:45:02,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 04:45:02,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:02,901 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 04:45:02,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:03,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:03,102 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:45:03,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:03,102 INFO L85 PathProgramCache]: Analyzing trace with hash -432648056, now seen corresponding path program 1 times [2024-11-14 04:45:03,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:45:03,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65782409] [2024-11-14 04:45:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:03,103 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 04:45:03,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:45:03,108 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:03,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:03,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:45:03,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:03,662 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 04:45:03,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:45:03,662 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:45:03,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65782409] [2024-11-14 04:45:03,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65782409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:03,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:45:03,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:45:03,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608708557] [2024-11-14 04:45:03,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:03,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:45:03,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:45:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:45:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:45:03,664 INFO L87 Difference]: Start difference. First operand 358 states and 442 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 04:45:03,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:03,724 INFO L93 Difference]: Finished difference Result 362 states and 447 transitions. [2024-11-14 04:45:03,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:45:03,725 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 04:45:03,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:03,727 INFO L225 Difference]: With dead ends: 362 [2024-11-14 04:45:03,727 INFO L226 Difference]: Without dead ends: 362 [2024-11-14 04:45:03,727 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 04:45:03,728 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 0 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:03,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 826 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:45:03,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-14 04:45:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2024-11-14 04:45:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 333 states have (on average 1.2342342342342343) internal successors, (411), 341 states have internal predecessors, (411), 19 states have call successors, (19), 7 states have call predecessors, (19), 8 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-14 04:45:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 447 transitions. [2024-11-14 04:45:03,741 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 447 transitions. Word has length 70 [2024-11-14 04:45:03,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:03,742 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 447 transitions. [2024-11-14 04:45:03,742 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 04:45:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 447 transitions. [2024-11-14 04:45:03,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 04:45:03,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:03,743 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 04:45:03,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:03,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:03,944 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:45:03,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:03,944 INFO L85 PathProgramCache]: Analyzing trace with hash -346622593, now seen corresponding path program 1 times [2024-11-14 04:45:03,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:45:03,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394643395] [2024-11-14 04:45:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:03,945 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 04:45:03,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:45:03,948 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:03,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:04,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:45:04,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:04,510 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 04:45:04,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:04,745 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 04:45:04,745 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:45:04,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394643395] [2024-11-14 04:45:04,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394643395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:04,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1988610265] [2024-11-14 04:45:04,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:04,746 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:45:04,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:45:04,754 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:45:04,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-14 04:45:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:05,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:45:05,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:05,814 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 04:45:05,815 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:06,362 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 04:45:06,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1988610265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:06,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279924814] [2024-11-14 04:45:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:06,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:06,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:45:06,367 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:45:06,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 04:45:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:06,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:45:06,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:06,884 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 04:45:06,884 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:45:06,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279924814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:06,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 04:45:06,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 7, 7] total 18 [2024-11-14 04:45:06,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115837419] [2024-11-14 04:45:06,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:06,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:45:06,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:45:06,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:45:06,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:45:06,887 INFO L87 Difference]: Start difference. First operand 362 states and 447 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 04:45:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:07,276 INFO L93 Difference]: Finished difference Result 952 states and 1194 transitions. [2024-11-14 04:45:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:45:07,277 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 04:45:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:07,284 INFO L225 Difference]: With dead ends: 952 [2024-11-14 04:45:07,285 INFO L226 Difference]: Without dead ends: 952 [2024-11-14 04:45:07,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:45:07,286 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 510 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:07,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1455 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:45:07,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-14 04:45:07,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 896. [2024-11-14 04:45:07,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 844 states have (on average 1.2511848341232228) internal successors, (1056), 855 states have internal predecessors, (1056), 33 states have call successors, (33), 13 states have call predecessors, (33), 17 states have return successors, (35), 27 states have call predecessors, (35), 29 states have call successors, (35) [2024-11-14 04:45:07,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1124 transitions. [2024-11-14 04:45:07,318 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1124 transitions. Word has length 71 [2024-11-14 04:45:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:07,318 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1124 transitions. [2024-11-14 04:45:07,318 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 04:45:07,319 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1124 transitions. [2024-11-14 04:45:07,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 04:45:07,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:07,320 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 04:45:07,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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)] Forceful destruction successful, exit code 0 [2024-11-14 04:45:07,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-14 04:45:07,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-14 04:45:07,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:45:07,921 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:45:07,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:07,922 INFO L85 PathProgramCache]: Analyzing trace with hash 502332804, now seen corresponding path program 1 times [2024-11-14 04:45:07,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:45:07,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931743285] [2024-11-14 04:45:07,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:07,923 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 04:45:07,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:45:07,928 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:07,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:08,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:45:08,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:08,750 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 04:45:08,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:09,002 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 04:45:09,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:45:09,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931743285] [2024-11-14 04:45:09,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931743285] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:09,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1176064430] [2024-11-14 04:45:09,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:09,003 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:45:09,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:45:09,005 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:45:09,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-14 04:45:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:09,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:45:09,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:10,588 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 04:45:10,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:11,512 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 04:45:11,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1176064430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:11,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509989168] [2024-11-14 04:45:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:11,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:11,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:45:11,515 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:45:11,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 04:45:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:12,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:45:12,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:12,664 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 04:45:12,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:12,921 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 04:45:12,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509989168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:12,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:45:12,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 8, 10, 8, 7] total 23 [2024-11-14 04:45:12,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358112353] [2024-11-14 04:45:12,922 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:45:12,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:45:12,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:45:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:45:12,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:45:12,926 INFO L87 Difference]: Start difference. First operand 896 states and 1124 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 04:45:22,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:22,976 INFO L93 Difference]: Finished difference Result 4554 states and 5787 transitions. [2024-11-14 04:45:22,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-14 04:45:22,978 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 04:45:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:22,995 INFO L225 Difference]: With dead ends: 4554 [2024-11-14 04:45:22,996 INFO L226 Difference]: Without dead ends: 4554 [2024-11-14 04:45:22,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4106 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=2371, Invalid=8971, Unknown=0, NotChecked=0, Total=11342 [2024-11-14 04:45:23,000 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 5518 mSDsluCounter, 11248 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5556 SdHoareTripleChecker+Valid, 12209 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:23,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5556 Valid, 12209 Invalid, 2343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [624 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-14 04:45:23,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2024-11-14 04:45:23,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 2913. [2024-11-14 04:45:23,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2913 states, 2788 states have (on average 1.2636298421807748) internal successors, (3523), 2806 states have internal predecessors, (3523), 76 states have call successors, (76), 43 states have call predecessors, (76), 47 states have return successors, (82), 63 states have call predecessors, (82), 72 states have call successors, (82) [2024-11-14 04:45:23,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 3681 transitions. [2024-11-14 04:45:23,096 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 3681 transitions. Word has length 98 [2024-11-14 04:45:23,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:23,096 INFO L471 AbstractCegarLoop]: Abstraction has 2913 states and 3681 transitions. [2024-11-14 04:45:23,096 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 04:45:23,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 3681 transitions. [2024-11-14 04:45:23,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 04:45:23,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:23,098 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 04:45:23,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-14 04:45:23,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-14 04:45:23,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:23,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:23,699 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:45:23,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:23,700 INFO L85 PathProgramCache]: Analyzing trace with hash -341926173, now seen corresponding path program 1 times [2024-11-14 04:45:23,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:45:23,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171877631] [2024-11-14 04:45:23,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:23,701 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 04:45:23,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:45:23,709 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:23,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:24,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:45:24,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:24,709 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 04:45:24,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:25,148 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 04:45:25,149 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:45:25,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171877631] [2024-11-14 04:45:25,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171877631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:25,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1172727816] [2024-11-14 04:45:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:25,149 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:45:25,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:45:25,151 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:45:25,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-14 04:45:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:26,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:45:26,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:26,477 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 04:45:26,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:26,647 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 04:45:26,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1172727816] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:26,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855612054] [2024-11-14 04:45:26,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:26,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:26,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:45:26,651 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:45:26,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 04:45:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:27,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:45:27,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:27,409 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:45:27,410 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:45:27,410 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 04:45:27,413 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 04:45:27,558 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:45:27,559 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 04:45:27,609 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 04:45:27,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:45:27,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855612054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:27,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 04:45:27,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8, 8, 8] total 16 [2024-11-14 04:45:27,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749109087] [2024-11-14 04:45:27,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:27,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:45:27,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:45:27,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:45:27,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-14 04:45:27,612 INFO L87 Difference]: Start difference. First operand 2913 states and 3681 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 04:45:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:33,717 INFO L93 Difference]: Finished difference Result 3713 states and 4765 transitions. [2024-11-14 04:45:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:45:33,720 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 04:45:33,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:33,734 INFO L225 Difference]: With dead ends: 3713 [2024-11-14 04:45:33,734 INFO L226 Difference]: Without dead ends: 3713 [2024-11-14 04:45:33,734 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 04:45:33,735 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 141 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:33,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 716 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-14 04:45:33,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2024-11-14 04:45:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 2931. [2024-11-14 04:45:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2931 states, 2806 states have (on average 1.2619387027797577) internal successors, (3541), 2824 states have internal predecessors, (3541), 76 states have call successors, (76), 43 states have call predecessors, (76), 47 states have return successors, (82), 63 states have call predecessors, (82), 72 states have call successors, (82) [2024-11-14 04:45:33,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2931 states to 2931 states and 3699 transitions. [2024-11-14 04:45:33,838 INFO L78 Accepts]: Start accepts. Automaton has 2931 states and 3699 transitions. Word has length 110 [2024-11-14 04:45:33,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:33,839 INFO L471 AbstractCegarLoop]: Abstraction has 2931 states and 3699 transitions. [2024-11-14 04:45:33,839 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 04:45:33,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2931 states and 3699 transitions. [2024-11-14 04:45:33,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 04:45:33,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:33,841 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 04:45:33,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 04:45:34,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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)] Forceful destruction successful, exit code 0 [2024-11-14 04:45:34,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-14 04:45:34,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:45:34,447 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:45:34,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:34,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1499827950, now seen corresponding path program 1 times [2024-11-14 04:45:34,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:45:34,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070898630] [2024-11-14 04:45:34,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:34,448 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 04:45:34,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:45:34,450 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:34,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:35,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:45:35,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:35,548 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 04:45:35,548 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:35,972 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 04:45:35,972 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:45:35,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070898630] [2024-11-14 04:45:35,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070898630] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:35,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1409027757] [2024-11-14 04:45:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:35,973 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:45:35,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:45:35,978 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:45:35,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-14 04:45:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:37,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:45:37,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:37,698 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 04:45:37,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:37,914 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 04:45:37,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1409027757] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:37,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311282562] [2024-11-14 04:45:37,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:37,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:37,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:45:37,917 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:45:37,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 04:45:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:38,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:45:38,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:38,933 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 04:45:38,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:39,304 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 04:45:39,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311282562] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:39,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:45:39,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 6, 6] total 20 [2024-11-14 04:45:39,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906884835] [2024-11-14 04:45:39,305 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:45:39,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 04:45:39,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:45:39,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 04:45:39,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-14 04:45:39,307 INFO L87 Difference]: Start difference. First operand 2931 states and 3699 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 04:45:41,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:41,018 INFO L93 Difference]: Finished difference Result 3120 states and 3951 transitions. [2024-11-14 04:45:41,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 04:45:41,020 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 04:45:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:41,030 INFO L225 Difference]: With dead ends: 3120 [2024-11-14 04:45:41,030 INFO L226 Difference]: Without dead ends: 3057 [2024-11-14 04:45:41,031 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 04:45:41,032 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 24 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:41,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2731 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:45:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2024-11-14 04:45:41,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 3015. [2024-11-14 04:45:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 2890 states have (on average 1.2640138408304498) internal successors, (3653), 2908 states have internal predecessors, (3653), 76 states have call successors, (76), 43 states have call predecessors, (76), 47 states have return successors, (82), 63 states have call predecessors, (82), 72 states have call successors, (82) [2024-11-14 04:45:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 3811 transitions. [2024-11-14 04:45:41,108 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 3811 transitions. Word has length 117 [2024-11-14 04:45:41,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:41,109 INFO L471 AbstractCegarLoop]: Abstraction has 3015 states and 3811 transitions. [2024-11-14 04:45:41,109 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 04:45:41,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 3811 transitions. [2024-11-14 04:45:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 04:45:41,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:41,112 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 04:45:41,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:41,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-14 04:45:41,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 04:45:41,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:41,713 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:45:41,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:41,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1917222638, now seen corresponding path program 2 times [2024-11-14 04:45:41,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:45:41,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901401993] [2024-11-14 04:45:41,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:45:41,715 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 04:45:41,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:45:41,718 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:41,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:45:44,221 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:45:44,221 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:45:44,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:45:44,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:44,698 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 04:45:44,699 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:46,154 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 04:45:46,154 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:45:46,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901401993] [2024-11-14 04:45:46,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901401993] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:46,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1647101666] [2024-11-14 04:45:46,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:45:46,155 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:45:46,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:45:46,157 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:45:46,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-14 04:46:53,703 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:46:53,703 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:46:53,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:46:53,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:46:53,950 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 04:46:53,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:46:54,201 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 04:46:54,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1647101666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:46:54,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734910496] [2024-11-14 04:46:54,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:46:54,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:54,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:46:54,205 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:46:54,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 04:48:56,052 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:48:56,052 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:48:56,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:48:56,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:48:56,310 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 04:48:56,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:48:57,627 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 04:48:57,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734910496] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:48:57,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:48:57,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 12, 12] total 38 [2024-11-14 04:48:57,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025903775] [2024-11-14 04:48:57,628 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:48:57,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-14 04:48:57,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:48:57,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-14 04:48:57,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:48:57,630 INFO L87 Difference]: Start difference. First operand 3015 states and 3811 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 04:49:06,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:49:06,394 INFO L93 Difference]: Finished difference Result 3288 states and 4238 transitions. [2024-11-14 04:49:06,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-14 04:49:06,396 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 04:49:06,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:49:06,407 INFO L225 Difference]: With dead ends: 3288 [2024-11-14 04:49:06,407 INFO L226 Difference]: Without dead ends: 3246 [2024-11-14 04:49:06,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1675, Invalid=4805, Unknown=0, NotChecked=0, Total=6480 [2024-11-14 04:49:06,410 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 46 mSDsluCounter, 5718 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:49:06,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5995 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 04:49:06,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2024-11-14 04:49:06,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 3183. [2024-11-14 04:49:06,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3183 states, 3058 states have (on average 1.276978417266187) internal successors, (3905), 3076 states have internal predecessors, (3905), 76 states have call successors, (76), 43 states have call predecessors, (76), 47 states have return successors, (82), 63 states have call predecessors, (82), 72 states have call successors, (82) [2024-11-14 04:49:06,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 4063 transitions. [2024-11-14 04:49:06,483 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 4063 transitions. Word has length 129 [2024-11-14 04:49:06,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:49:06,483 INFO L471 AbstractCegarLoop]: Abstraction has 3183 states and 4063 transitions. [2024-11-14 04:49:06,483 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 04:49:06,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 4063 transitions. [2024-11-14 04:49:06,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-14 04:49:06,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:49:06,486 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 04:49:06,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-14 04:49:06,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 04:49:06,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:49:07,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:49:07,087 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:49:07,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:49:07,087 INFO L85 PathProgramCache]: Analyzing trace with hash 269709586, now seen corresponding path program 3 times [2024-11-14 04:49:07,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:49:07,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450376098] [2024-11-14 04:49:07,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:49:07,088 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 04:49:07,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:49:07,090 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:49:07,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/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 04:49:28,070 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-14 04:49:28,070 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:49:28,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 04:49:28,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:49:29,304 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 04:49:29,304 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:49:33,849 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 04:49:33,850 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:49:33,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450376098] [2024-11-14 04:49:33,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450376098] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:49:33,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [829586939] [2024-11-14 04:49:33,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:49:33,850 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:49:33,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:49:33,854 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:49:33,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eca408-f970-4a64-a427-83e8fcbf5ac8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process