./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:39:11,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:39:11,506 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-24 21:39:11,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:39:11,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:39:11,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:39:11,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:39:11,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:39:11,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:39:11,593 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:39:11,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:39:11,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:39:11,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:39:11,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:39:11,597 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:39:11,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:39:11,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:39:11,599 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:39:11,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:39:11,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:39:11,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:39:11,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:39:11,602 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:39:11,602 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:39:11,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:39:11,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:39:11,604 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:39:11,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:39:11,605 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:39:11,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:39:11,607 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:39:11,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:39:11,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:39:11,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:39:11,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:39:11,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:39:11,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:39:11,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:39:11,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:39:11,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:39:11,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:39:11,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:39:11,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:39:11,630 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:39:11,631 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2023-11-24 21:39:12,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:39:12,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:39:12,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:39:12,048 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:39:12,048 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:39:12,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-11-24 21:39:15,197 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:39:15,644 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:39:15,650 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-11-24 21:39:15,672 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/data/883064468/c4ff06e18b854898922c1957bf18c617/FLAG5fafcf47c [2023-11-24 21:39:15,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/data/883064468/c4ff06e18b854898922c1957bf18c617 [2023-11-24 21:39:15,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:39:15,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:39:15,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:39:15,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:39:15,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:39:15,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:39:15" (1/1) ... [2023-11-24 21:39:15,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324ac8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:15, skipping insertion in model container [2023-11-24 21:39:15,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:39:15" (1/1) ... [2023-11-24 21:39:15,784 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:39:16,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:39:16,686 ERROR L324 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) [2023-11-24 21:39:16,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75407ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:16, skipping insertion in model container [2023-11-24 21:39:16,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:39:16,687 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:39:16,689 INFO L158 Benchmark]: Toolchain (without parser) took 998.62ms. Allocated memory is still 184.5MB. Free memory was 151.4MB in the beginning and 129.3MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 21:39:16,690 INFO L158 Benchmark]: CDTParser took 1.17ms. Allocated memory is still 125.8MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:39:16,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 996.31ms. Allocated memory is still 184.5MB. Free memory was 151.1MB in the beginning and 129.3MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 21:39:16,692 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17ms. Allocated memory is still 125.8MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 996.31ms. Allocated memory is still 184.5MB. Free memory was 151.1MB in the beginning and 129.3MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:39:19,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:39:19,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-24 21:39:19,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:39:19,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:39:19,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:39:19,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:39:19,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:39:19,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:39:19,448 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:39:19,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:39:19,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:39:19,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:39:19,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:39:19,453 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:39:19,454 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:39:19,455 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:39:19,455 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:39:19,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:39:19,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:39:19,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:39:19,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:39:19,459 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:39:19,460 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:39:19,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:39:19,461 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:39:19,461 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:39:19,462 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:39:19,462 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:39:19,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:39:19,465 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:39:19,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:39:19,466 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:39:19,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:39:19,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:39:19,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:39:19,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:39:19,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:39:19,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:39:19,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:39:19,470 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:39:19,470 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:39:19,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:39:19,471 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:39:19,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:39:19,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:39:19,473 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:39:19,473 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2023-11-24 21:39:19,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:39:19,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:39:19,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:39:19,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:39:19,955 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:39:19,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-11-24 21:39:23,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:39:23,514 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:39:23,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-11-24 21:39:23,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/data/30977be9b/c2900afb96654067ae6c7b7b3779165e/FLAGdf57d7cf3 [2023-11-24 21:39:23,565 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/data/30977be9b/c2900afb96654067ae6c7b7b3779165e [2023-11-24 21:39:23,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:39:23,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:39:23,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:39:23,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:39:23,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:39:23,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:39:23" (1/1) ... [2023-11-24 21:39:23,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119e2b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:23, skipping insertion in model container [2023-11-24 21:39:23,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:39:23" (1/1) ... [2023-11-24 21:39:23,657 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:39:24,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:39:24,685 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:39:24,702 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:39:24,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:39:24,807 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:39:24,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:39:24,994 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:39:25,001 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:39:25,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25 WrapperNode [2023-11-24 21:39:25,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:39:25,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:39:25,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:39:25,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:39:25,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,133 INFO L138 Inliner]: procedures = 285, calls = 298, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1045 [2023-11-24 21:39:25,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:39:25,134 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:39:25,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:39:25,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:39:25,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,302 INFO L175 MemorySlicer]: Split 264 memory accesses to 5 slices as follows [5, 2, 3, 220, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0, 0]. The 56 writes are split as follows [1, 0, 2, 49, 4]. [2023-11-24 21:39:25,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,402 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:39:25,478 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:39:25,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:39:25,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:39:25,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (1/1) ... [2023-11-24 21:39:25,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:39:25,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:39:25,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:39:25,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:39:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 21:39:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 21:39:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:39:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:39:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:39:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:39:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-24 21:39:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:39:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:39:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:39:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:39:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-24 21:39:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:39:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:39:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:39:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:39:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:39:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:39:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-24 21:39:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:39:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:39:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:39:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:39:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:39:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-24 21:39:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:39:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:39:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:39:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:39:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-24 21:39:25,584 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-24 21:39:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-24 21:39:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:39:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:39:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:39:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:39:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-24 21:39:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-24 21:39:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:39:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:39:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:39:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:39:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-24 21:39:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-24 21:39:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-24 21:39:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:39:25,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:39:25,897 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:39:25,900 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:39:35,239 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:39:35,286 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:39:35,287 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-24 21:39:35,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:39:35 BoogieIcfgContainer [2023-11-24 21:39:35,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:39:35,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:39:35,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:39:35,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:39:35,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:39:23" (1/3) ... [2023-11-24 21:39:35,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ae9fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:39:35, skipping insertion in model container [2023-11-24 21:39:35,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:25" (2/3) ... [2023-11-24 21:39:35,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ae9fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:39:35, skipping insertion in model container [2023-11-24 21:39:35,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:39:35" (3/3) ... [2023-11-24 21:39:35,309 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-1.i [2023-11-24 21:39:35,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:39:35,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 21:39:35,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:39:35,414 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@682b0fbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:39:35,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 21:39:35,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 225 states, 200 states have (on average 1.635) internal successors, (327), 205 states have internal predecessors, (327), 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) [2023-11-24 21:39:35,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 21:39:35,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:35,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:35,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:35,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:35,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1518545934, now seen corresponding path program 1 times [2023-11-24 21:39:35,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:35,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790541348] [2023-11-24 21:39:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:35,471 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 [2023-11-24 21:39:35,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:35,479 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:35,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:35,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 21:39:35,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:35,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:39:35,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:35,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790541348] [2023-11-24 21:39:35,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790541348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:35,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:35,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:39:35,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731032967] [2023-11-24 21:39:35,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:35,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:39:35,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:35,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:39:35,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:39:35,834 INFO L87 Difference]: Start difference. First operand has 225 states, 200 states have (on average 1.635) internal successors, (327), 205 states have internal predecessors, (327), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-24 21:39:35,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:35,947 INFO L93 Difference]: Finished difference Result 220 states and 285 transitions. [2023-11-24 21:39:35,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:39:35,950 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2023-11-24 21:39:35,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:35,962 INFO L225 Difference]: With dead ends: 220 [2023-11-24 21:39:35,966 INFO L226 Difference]: Without dead ends: 219 [2023-11-24 21:39:35,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:39:35,974 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:35,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:39:35,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-24 21:39:36,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-24 21:39:36,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 196 states have (on average 1.2959183673469388) internal successors, (254), 201 states have internal predecessors, (254), 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) [2023-11-24 21:39:36,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 284 transitions. [2023-11-24 21:39:36,063 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 284 transitions. Word has length 9 [2023-11-24 21:39:36,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:36,064 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 284 transitions. [2023-11-24 21:39:36,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-24 21:39:36,065 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 284 transitions. [2023-11-24 21:39:36,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 21:39:36,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:36,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:36,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 21:39:36,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:36,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:36,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:36,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1131489963, now seen corresponding path program 1 times [2023-11-24 21:39:36,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:36,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137527583] [2023-11-24 21:39:36,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:36,271 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 [2023-11-24 21:39:36,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:36,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:36,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:36,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:39:36,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:36,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:39:36,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:36,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137527583] [2023-11-24 21:39:36,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137527583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:36,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:36,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:39:36,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754161885] [2023-11-24 21:39:36,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:36,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:39:36,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:36,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:39:36,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:39:36,693 INFO L87 Difference]: Start difference. First operand 219 states and 284 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-24 21:39:38,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:39:41,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:39:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:42,200 INFO L93 Difference]: Finished difference Result 341 states and 445 transitions. [2023-11-24 21:39:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:39:42,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 11 [2023-11-24 21:39:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:42,208 INFO L225 Difference]: With dead ends: 341 [2023-11-24 21:39:42,211 INFO L226 Difference]: Without dead ends: 341 [2023-11-24 21:39:42,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:39:42,214 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 155 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:42,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 734 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-24 21:39:42,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-24 21:39:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 329. [2023-11-24 21:39:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 306 states have (on average 1.303921568627451) internal successors, (399), 311 states have internal predecessors, (399), 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) [2023-11-24 21:39:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 429 transitions. [2023-11-24 21:39:42,262 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 429 transitions. Word has length 11 [2023-11-24 21:39:42,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:42,263 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 429 transitions. [2023-11-24 21:39:42,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-24 21:39:42,263 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 429 transitions. [2023-11-24 21:39:42,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 21:39:42,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:42,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:42,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:42,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:42,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:42,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:42,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2059992344, now seen corresponding path program 1 times [2023-11-24 21:39:42,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:42,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968678709] [2023-11-24 21:39:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:42,472 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 [2023-11-24 21:39:42,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:42,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:42,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:42,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:39:42,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:42,745 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:39:42,746 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:39:42,747 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:39:42,759 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 [2023-11-24 21:39:42,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 21:39:42,846 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 [2023-11-24 21:39:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:42,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:39:42,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:42,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968678709] [2023-11-24 21:39:42,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968678709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:42,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:42,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:39:42,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961656394] [2023-11-24 21:39:42,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:42,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:39:42,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:42,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:39:42,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:39:42,876 INFO L87 Difference]: Start difference. First operand 329 states and 429 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-24 21:39:43,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:43,709 INFO L93 Difference]: Finished difference Result 506 states and 666 transitions. [2023-11-24 21:39:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:39:43,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14 [2023-11-24 21:39:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:43,715 INFO L225 Difference]: With dead ends: 506 [2023-11-24 21:39:43,715 INFO L226 Difference]: Without dead ends: 506 [2023-11-24 21:39:43,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:39:43,717 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 227 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:43,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 842 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 21:39:43,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-11-24 21:39:43,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 328. [2023-11-24 21:39:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 305 states have (on average 1.301639344262295) internal successors, (397), 310 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) [2023-11-24 21:39:43,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 427 transitions. [2023-11-24 21:39:43,739 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 427 transitions. Word has length 14 [2023-11-24 21:39:43,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:43,739 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 427 transitions. [2023-11-24 21:39:43,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-24 21:39:43,739 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 427 transitions. [2023-11-24 21:39:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 21:39:43,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:43,742 INFO L195 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] [2023-11-24 21:39:43,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 21:39:43,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:43,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:43,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash 518278030, now seen corresponding path program 1 times [2023-11-24 21:39:43,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:43,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455403402] [2023-11-24 21:39:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:43,948 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 [2023-11-24 21:39:43,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:43,949 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:43,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:44,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:39:44,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:44,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:39:44,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:44,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455403402] [2023-11-24 21:39:44,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455403402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:44,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:44,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:39:44,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115623464] [2023-11-24 21:39:44,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:44,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:39:44,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:44,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:39:44,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:39:44,353 INFO L87 Difference]: Start difference. First operand 328 states and 427 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-11-24 21:39:44,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:44,551 INFO L93 Difference]: Finished difference Result 336 states and 419 transitions. [2023-11-24 21:39:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:39:44,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 48 [2023-11-24 21:39:44,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:44,554 INFO L225 Difference]: With dead ends: 336 [2023-11-24 21:39:44,554 INFO L226 Difference]: Without dead ends: 336 [2023-11-24 21:39:44,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:39:44,556 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 36 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:44,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 720 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:39:44,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-24 21:39:44,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 334. [2023-11-24 21:39:44,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 311 states have (on average 1.2443729903536977) internal successors, (387), 316 states have internal predecessors, (387), 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) [2023-11-24 21:39:44,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 417 transitions. [2023-11-24 21:39:44,572 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 417 transitions. Word has length 48 [2023-11-24 21:39:44,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:44,573 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 417 transitions. [2023-11-24 21:39:44,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-11-24 21:39:44,573 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 417 transitions. [2023-11-24 21:39:44,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 21:39:44,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:44,575 INFO L195 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] [2023-11-24 21:39:44,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-24 21:39:44,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:44,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:44,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:44,782 INFO L85 PathProgramCache]: Analyzing trace with hash 972862082, now seen corresponding path program 1 times [2023-11-24 21:39:44,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:44,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325762264] [2023-11-24 21:39:44,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:44,783 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 [2023-11-24 21:39:44,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:44,784 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:44,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:45,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:39:45,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:45,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:39:45,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:45,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325762264] [2023-11-24 21:39:45,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325762264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:45,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:45,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 21:39:45,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833639727] [2023-11-24 21:39:45,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:45,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:39:45,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:45,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:39:45,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:39:45,189 INFO L87 Difference]: Start difference. First operand 334 states and 417 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-11-24 21:39:45,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:45,418 INFO L93 Difference]: Finished difference Result 343 states and 426 transitions. [2023-11-24 21:39:45,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 21:39:45,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 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 48 [2023-11-24 21:39:45,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:45,421 INFO L225 Difference]: With dead ends: 343 [2023-11-24 21:39:45,422 INFO L226 Difference]: Without dead ends: 343 [2023-11-24 21:39:45,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:39:45,423 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 11 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:45,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1300 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:39:45,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-24 21:39:45,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2023-11-24 21:39:45,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 317 states have (on average 1.2429022082018928) internal successors, (394), 323 states have internal predecessors, (394), 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) [2023-11-24 21:39:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 426 transitions. [2023-11-24 21:39:45,438 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 426 transitions. Word has length 48 [2023-11-24 21:39:45,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:45,438 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 426 transitions. [2023-11-24 21:39:45,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-11-24 21:39:45,439 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 426 transitions. [2023-11-24 21:39:45,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-24 21:39:45,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:45,441 INFO L195 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] [2023-11-24 21:39:45,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-24 21:39:45,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:45,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:45,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:45,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1058188914, now seen corresponding path program 1 times [2023-11-24 21:39:45,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:45,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631984961] [2023-11-24 21:39:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:45,648 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 [2023-11-24 21:39:45,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:45,650 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:45,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:46,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:39:46,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:46,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:39:46,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:46,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631984961] [2023-11-24 21:39:46,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631984961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:46,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:46,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 21:39:46,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279041444] [2023-11-24 21:39:46,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:46,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:39:46,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:46,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:39:46,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:39:46,342 INFO L87 Difference]: Start difference. First operand 343 states and 426 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-11-24 21:39:46,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:46,706 INFO L93 Difference]: Finished difference Result 349 states and 434 transitions. [2023-11-24 21:39:46,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 21:39:46,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 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 60 [2023-11-24 21:39:46,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:46,711 INFO L225 Difference]: With dead ends: 349 [2023-11-24 21:39:46,711 INFO L226 Difference]: Without dead ends: 349 [2023-11-24 21:39:46,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:39:46,712 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 17 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:46,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 946 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 21:39:46,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-24 21:39:46,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 346. [2023-11-24 21:39:46,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 318 states have (on average 1.2421383647798743) internal successors, (395), 325 states have internal predecessors, (395), 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) [2023-11-24 21:39:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 430 transitions. [2023-11-24 21:39:46,727 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 430 transitions. Word has length 60 [2023-11-24 21:39:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:46,728 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 430 transitions. [2023-11-24 21:39:46,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-11-24 21:39:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 430 transitions. [2023-11-24 21:39:46,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-24 21:39:46,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:46,730 INFO L195 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] [2023-11-24 21:39:46,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-24 21:39:46,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:46,937 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:46,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash -356355389, now seen corresponding path program 1 times [2023-11-24 21:39:46,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:46,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528273344] [2023-11-24 21:39:46,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:46,939 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 [2023-11-24 21:39:46,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:46,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:46,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:47,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:39:47,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:47,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:39:47,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:47,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528273344] [2023-11-24 21:39:47,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528273344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:47,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:47,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:39:47,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516995601] [2023-11-24 21:39:47,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:47,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:39:47,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:39:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:39:47,540 INFO L87 Difference]: Start difference. First operand 346 states and 430 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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) [2023-11-24 21:39:47,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:47,661 INFO L93 Difference]: Finished difference Result 348 states and 433 transitions. [2023-11-24 21:39:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:39:47,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 65 [2023-11-24 21:39:47,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:47,667 INFO L225 Difference]: With dead ends: 348 [2023-11-24 21:39:47,667 INFO L226 Difference]: Without dead ends: 348 [2023-11-24 21:39:47,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:39:47,668 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:47,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 784 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:39:47,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-24 21:39:47,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2023-11-24 21:39:47,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 319 states have (on average 1.244514106583072) internal successors, (397), 327 states have internal predecessors, (397), 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) [2023-11-24 21:39:47,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 433 transitions. [2023-11-24 21:39:47,690 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 433 transitions. Word has length 65 [2023-11-24 21:39:47,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:47,690 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 433 transitions. [2023-11-24 21:39:47,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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) [2023-11-24 21:39:47,691 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 433 transitions. [2023-11-24 21:39:47,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-24 21:39:47,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:47,697 INFO L195 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] [2023-11-24 21:39:47,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-24 21:39:47,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:47,903 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:47,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:47,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1848689150, now seen corresponding path program 1 times [2023-11-24 21:39:47,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:47,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095242675] [2023-11-24 21:39:47,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:47,905 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 [2023-11-24 21:39:47,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:47,906 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:47,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:48,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:39:48,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:48,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:48,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:39:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:48,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:48,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095242675] [2023-11-24 21:39:48,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095242675] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:39:48,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:39:48,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-24 21:39:48,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594598508] [2023-11-24 21:39:48,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:39:48,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:39:48,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:48,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:39:48,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:39:48,732 INFO L87 Difference]: Start difference. First operand 348 states and 433 transitions. Second operand has 8 states, 6 states have (on average 10.0) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-24 21:39:49,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:49,145 INFO L93 Difference]: Finished difference Result 357 states and 447 transitions. [2023-11-24 21:39:49,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-24 21:39:49,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 66 [2023-11-24 21:39:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:49,149 INFO L225 Difference]: With dead ends: 357 [2023-11-24 21:39:49,149 INFO L226 Difference]: Without dead ends: 357 [2023-11-24 21:39:49,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2023-11-24 21:39:49,150 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 4 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:49,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1558 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 21:39:49,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-24 21:39:49,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2023-11-24 21:39:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 326 states have (on average 1.2576687116564418) internal successors, (410), 334 states have internal predecessors, (410), 19 states have call successors, (19), 8 states have call predecessors, (19), 9 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-24 21:39:49,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 446 transitions. [2023-11-24 21:39:49,164 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 446 transitions. Word has length 66 [2023-11-24 21:39:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:49,165 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 446 transitions. [2023-11-24 21:39:49,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-24 21:39:49,165 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 446 transitions. [2023-11-24 21:39:49,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-24 21:39:49,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:49,166 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-11-24 21:39:49,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:49,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:49,373 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:49,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:49,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2071587203, now seen corresponding path program 2 times [2023-11-24 21:39:49,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:49,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074696674] [2023-11-24 21:39:49,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 21:39:49,375 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 [2023-11-24 21:39:49,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:49,376 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:49,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-24 21:39:50,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 21:39:50,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:39:50,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 21:39:50,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:50,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:39:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:50,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:50,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074696674] [2023-11-24 21:39:50,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074696674] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:39:50,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:39:50,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-24 21:39:50,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187011825] [2023-11-24 21:39:50,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:39:50,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-24 21:39:50,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:50,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-24 21:39:50,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-24 21:39:50,971 INFO L87 Difference]: Start difference. First operand 356 states and 446 transitions. Second operand has 14 states, 12 states have (on average 5.5) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-24 21:39:52,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:52,247 INFO L93 Difference]: Finished difference Result 368 states and 465 transitions. [2023-11-24 21:39:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-24 21:39:52,248 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.5) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2023-11-24 21:39:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:52,251 INFO L225 Difference]: With dead ends: 368 [2023-11-24 21:39:52,251 INFO L226 Difference]: Without dead ends: 366 [2023-11-24 21:39:52,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2023-11-24 21:39:52,252 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 8 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:52,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1558 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 21:39:52,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-24 21:39:52,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2023-11-24 21:39:52,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 335 states have (on average 1.2597014925373133) internal successors, (422), 343 states have internal predecessors, (422), 19 states have call successors, (19), 8 states have call predecessors, (19), 9 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-24 21:39:52,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 458 transitions. [2023-11-24 21:39:52,266 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 458 transitions. Word has length 69 [2023-11-24 21:39:52,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:52,266 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 458 transitions. [2023-11-24 21:39:52,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.5) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-24 21:39:52,266 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 458 transitions. [2023-11-24 21:39:52,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 21:39:52,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:52,268 INFO L195 NwaCegarLoop]: trace histogram [10, 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] [2023-11-24 21:39:52,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-24 21:39:52,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:52,482 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:52,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:52,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1354008483, now seen corresponding path program 3 times [2023-11-24 21:39:52,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:52,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327015050] [2023-11-24 21:39:52,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 21:39:52,484 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 [2023-11-24 21:39:52,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:52,490 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:52,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-24 21:39:53,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-24 21:39:53,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:39:53,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 21:39:53,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:53,403 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-24 21:39:53,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:39:53,757 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-24 21:39:53,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:53,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327015050] [2023-11-24 21:39:53,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327015050] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:39:53,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:39:53,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-24 21:39:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46990701] [2023-11-24 21:39:53,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:39:53,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 21:39:53,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 21:39:53,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-24 21:39:53,760 INFO L87 Difference]: Start difference. First operand 365 states and 458 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-24 21:39:56,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:56,238 INFO L93 Difference]: Finished difference Result 2684 states and 3423 transitions. [2023-11-24 21:39:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-24 21:39:56,239 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) Word has length 75 [2023-11-24 21:39:56,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:56,262 INFO L225 Difference]: With dead ends: 2684 [2023-11-24 21:39:56,262 INFO L226 Difference]: Without dead ends: 2684 [2023-11-24 21:39:56,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2023-11-24 21:39:56,264 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 3179 mSDsluCounter, 4423 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3205 SdHoareTripleChecker+Valid, 5147 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:56,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3205 Valid, 5147 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-24 21:39:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2023-11-24 21:39:56,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1858. [2023-11-24 21:39:56,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1764 states have (on average 1.2704081632653061) internal successors, (2241), 1778 states have internal predecessors, (2241), 58 states have call successors, (58), 32 states have call predecessors, (58), 34 states have return successors, (62), 47 states have call predecessors, (62), 54 states have call successors, (62) [2023-11-24 21:39:56,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2361 transitions. [2023-11-24 21:39:56,351 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2361 transitions. Word has length 75 [2023-11-24 21:39:56,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:56,351 INFO L495 AbstractCegarLoop]: Abstraction has 1858 states and 2361 transitions. [2023-11-24 21:39:56,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-24 21:39:56,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2361 transitions. [2023-11-24 21:39:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-24 21:39:56,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:56,355 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2023-11-24 21:39:56,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-24 21:39:56,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:39:56,564 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:39:56,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:56,565 INFO L85 PathProgramCache]: Analyzing trace with hash 445728410, now seen corresponding path program 1 times [2023-11-24 21:39:56,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:39:56,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108856639] [2023-11-24 21:39:56,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:56,567 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 [2023-11-24 21:39:56,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:39:56,568 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:39:56,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:39:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:57,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 21:39:57,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-24 21:39:57,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:39:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 21:39:58,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:39:58,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108856639] [2023-11-24 21:39:58,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108856639] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:39:58,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:39:58,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-24 21:39:58,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967115299] [2023-11-24 21:39:58,973 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:39:58,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-24 21:39:58,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:39:58,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-24 21:39:58,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-24 21:39:58,976 INFO L87 Difference]: Start difference. First operand 1858 states and 2361 transitions. Second operand has 26 states, 24 states have (on average 4.666666666666667) internal successors, (112), 26 states have internal predecessors, (112), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-24 21:40:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:04,765 INFO L93 Difference]: Finished difference Result 1963 states and 2546 transitions. [2023-11-24 21:40:04,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-24 21:40:04,766 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.666666666666667) internal successors, (112), 26 states have internal predecessors, (112), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 111 [2023-11-24 21:40:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:04,779 INFO L225 Difference]: With dead ends: 1963 [2023-11-24 21:40:04,779 INFO L226 Difference]: Without dead ends: 1953 [2023-11-24 21:40:04,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2023-11-24 21:40:04,782 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 14 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3371 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:04,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3371 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-24 21:40:04,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2023-11-24 21:40:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1948. [2023-11-24 21:40:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1854 states have (on average 1.273462783171521) internal successors, (2361), 1868 states have internal predecessors, (2361), 58 states have call successors, (58), 32 states have call predecessors, (58), 34 states have return successors, (62), 47 states have call predecessors, (62), 54 states have call successors, (62) [2023-11-24 21:40:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2481 transitions. [2023-11-24 21:40:04,853 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2481 transitions. Word has length 111 [2023-11-24 21:40:04,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:04,856 INFO L495 AbstractCegarLoop]: Abstraction has 1948 states and 2481 transitions. [2023-11-24 21:40:04,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.666666666666667) internal successors, (112), 26 states have internal predecessors, (112), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-24 21:40:04,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2481 transitions. [2023-11-24 21:40:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-24 21:40:04,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:04,858 INFO L195 NwaCegarLoop]: trace histogram [33, 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] [2023-11-24 21:40:04,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-24 21:40:05,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:40:05,071 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:40:05,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:05,072 INFO L85 PathProgramCache]: Analyzing trace with hash -435129094, now seen corresponding path program 2 times [2023-11-24 21:40:05,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:40:05,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213120971] [2023-11-24 21:40:05,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 21:40:05,074 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 [2023-11-24 21:40:05,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:40:05,075 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:40:05,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-24 21:40:05,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 21:40:05,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:40:05,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 21:40:05,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:40:05,604 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:40:05,604 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:40:05,605 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:40:05,608 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 [2023-11-24 21:40:05,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 21:40:05,675 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 [2023-11-24 21:40:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2023-11-24 21:40:05,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:40:05,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:40:05,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213120971] [2023-11-24 21:40:05,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213120971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:40:05,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:40:05,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:40:05,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060266616] [2023-11-24 21:40:05,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:40:05,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:40:05,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:40:05,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:40:05,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:40:05,696 INFO L87 Difference]: Start difference. First operand 1948 states and 2481 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-11-24 21:40:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:40:06,504 INFO L93 Difference]: Finished difference Result 2700 states and 3483 transitions. [2023-11-24 21:40:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:40:06,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 129 [2023-11-24 21:40:06,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:40:06,522 INFO L225 Difference]: With dead ends: 2700 [2023-11-24 21:40:06,522 INFO L226 Difference]: Without dead ends: 2700 [2023-11-24 21:40:06,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:40:06,523 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 212 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:40:06,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 729 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-24 21:40:06,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2023-11-24 21:40:06,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 1960. [2023-11-24 21:40:06,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1960 states, 1866 states have (on average 1.2717041800643087) internal successors, (2373), 1880 states have internal predecessors, (2373), 58 states have call successors, (58), 32 states have call predecessors, (58), 34 states have return successors, (62), 47 states have call predecessors, (62), 54 states have call successors, (62) [2023-11-24 21:40:06,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2493 transitions. [2023-11-24 21:40:06,600 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2493 transitions. Word has length 129 [2023-11-24 21:40:06,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:40:06,600 INFO L495 AbstractCegarLoop]: Abstraction has 1960 states and 2493 transitions. [2023-11-24 21:40:06,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-11-24 21:40:06,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2493 transitions. [2023-11-24 21:40:06,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-24 21:40:06,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:40:06,603 INFO L195 NwaCegarLoop]: trace histogram [33, 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] [2023-11-24 21:40:06,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-24 21:40:06,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:40:06,808 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:40:06,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:40:06,808 INFO L85 PathProgramCache]: Analyzing trace with hash -427519190, now seen corresponding path program 1 times [2023-11-24 21:40:06,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:40:06,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214358752] [2023-11-24 21:40:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:40:06,809 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 [2023-11-24 21:40:06,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:40:06,810 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:40:06,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c3b3a66-4d78-4492-8c4c-33fe24ef81d4/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process