./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya --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 c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:42:13,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:42:13,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-28 23:42:13,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:42:13,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:42:13,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:42:13,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:42:13,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:42:13,274 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:42:13,275 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:42:13,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:42:13,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:42:13,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:42:13,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:42:13,277 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:42:13,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:42:13,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:42:13,279 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:42:13,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:42:13,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:42:13,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:42:13,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:42:13,286 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 23:42:13,286 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 23:42:13,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:42:13,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:42:13,287 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:42:13,288 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:42:13,288 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:42:13,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:42:13,289 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:42:13,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:42:13,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:42:13,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:42:13,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:42:13,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:42:13,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:42:13,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:42:13,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:42:13,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:42:13,291 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:42:13,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:42:13,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:42:13,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:42:13,292 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_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c [2023-11-28 23:42:13,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:42:13,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:42:13,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:42:13,521 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:42:13,521 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:42:13,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2023-11-28 23:42:16,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:42:16,545 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:42:16,546 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2023-11-28 23:42:16,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/data/732c517d1/ef3e2fae227a45eb89ead16ff9fd1423/FLAGdb8671f35 [2023-11-28 23:42:16,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/data/732c517d1/ef3e2fae227a45eb89ead16ff9fd1423 [2023-11-28 23:42:16,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:42:16,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:42:16,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:42:16,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:42:16,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:42:16,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:16" (1/1) ... [2023-11-28 23:42:16,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79714a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:16, skipping insertion in model container [2023-11-28 23:42:16,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:16" (1/1) ... [2023-11-28 23:42:16,653 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:42:17,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:42:17,140 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) [2023-11-28 23:42:17,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e426bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:17, skipping insertion in model container [2023-11-28 23:42:17,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:42:17,141 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-28 23:42:17,143 INFO L158 Benchmark]: Toolchain (without parser) took 561.75ms. Allocated memory is still 144.7MB. Free memory was 110.9MB in the beginning and 87.3MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-28 23:42:17,144 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:42:17,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.56ms. Allocated memory is still 144.7MB. Free memory was 110.9MB in the beginning and 87.3MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-28 23:42:17,146 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.56ms. Allocated memory is still 144.7MB. Free memory was 110.9MB in the beginning and 87.3MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya --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 c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:42:18,858 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:42:18,925 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-28 23:42:18,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:42:18,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:42:18,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:42:18,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:42:18,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:42:18,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:42:18,968 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:42:18,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:42:18,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:42:18,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:42:18,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:42:18,970 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:42:18,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:42:18,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:42:18,972 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:42:18,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:42:18,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:42:18,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:42:18,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:42:18,975 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 23:42:18,975 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 23:42:18,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:42:18,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:42:18,977 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:42:18,977 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 23:42:18,977 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 23:42:18,978 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:42:18,978 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:42:18,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:42:18,979 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:42:18,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:42:18,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:42:18,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:42:18,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:42:18,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:42:18,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:42:18,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:42:18,981 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 23:42:18,981 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 23:42:18,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:42:18,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:42:18,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:42:18,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:42:18,982 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 23:42:18,982 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_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c [2023-11-28 23:42:19,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:42:19,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:42:19,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:42:19,298 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:42:19,298 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:42:19,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2023-11-28 23:42:22,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:42:22,346 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:42:22,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2023-11-28 23:42:22,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/data/faa41f49a/72d10144695d4c5bb35fa28eeccc40c3/FLAG9a96b7140 [2023-11-28 23:42:22,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/data/faa41f49a/72d10144695d4c5bb35fa28eeccc40c3 [2023-11-28 23:42:22,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:42:22,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:42:22,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:42:22,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:42:22,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:42:22,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:22" (1/1) ... [2023-11-28 23:42:22,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76624136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:22, skipping insertion in model container [2023-11-28 23:42:22,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:22" (1/1) ... [2023-11-28 23:42:22,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:42:22,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:42:22,999 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-28 23:42:23,016 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:42:23,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:42:23,116 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:42:23,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:42:23,222 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:42:23,230 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:42:23,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23 WrapperNode [2023-11-28 23:42:23,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:42:23,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:42:23,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:42:23,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:42:23,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,328 INFO L138 Inliner]: procedures = 180, calls = 390, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1406 [2023-11-28 23:42:23,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:42:23,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:42:23,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:42:23,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:42:23,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,470 INFO L175 MemorySlicer]: Split 359 memory accesses to 5 slices as follows [2, 5, 5, 24, 323]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 85 writes are split as follows [0, 1, 1, 1, 82]. [2023-11-28 23:42:23,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,471 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:42:23,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:42:23,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:42:23,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:42:23,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (1/1) ... [2023-11-28 23:42:23,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:42:23,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:42:23,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:42:23,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:42:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-28 23:42:23,637 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-28 23:42:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-28 23:42:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-28 23:42:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-28 23:42:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-28 23:42:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-28 23:42:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-28 23:42:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-28 23:42:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-28 23:42:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-28 23:42:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-28 23:42:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 23:42:23,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 23:42:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-28 23:42:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-28 23:42:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-28 23:42:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-28 23:42:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-28 23:42:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-28 23:42:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-28 23:42:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-28 23:42:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-28 23:42:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-28 23:42:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 23:42:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:42:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 23:42:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 23:42:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-28 23:42:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-28 23:42:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-28 23:42:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:42:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-28 23:42:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 23:42:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 23:42:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-28 23:42:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-28 23:42:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-28 23:42:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:42:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-28 23:42:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-28 23:42:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-28 23:42:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-28 23:42:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-28 23:42:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 23:42:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-28 23:42:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-28 23:42:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-28 23:42:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-28 23:42:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:42:23,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:42:23,889 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:42:23,892 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:42:39,112 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:42:39,141 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:42:39,141 INFO L309 CfgBuilder]: Removed 83 assume(true) statements. [2023-11-28 23:42:39,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:39 BoogieIcfgContainer [2023-11-28 23:42:39,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:42:39,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:42:39,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:42:39,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:42:39,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:42:22" (1/3) ... [2023-11-28 23:42:39,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690e73ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:42:39, skipping insertion in model container [2023-11-28 23:42:39,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:23" (2/3) ... [2023-11-28 23:42:39,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690e73ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:42:39, skipping insertion in model container [2023-11-28 23:42:39,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:39" (3/3) ... [2023-11-28 23:42:39,151 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-1.i [2023-11-28 23:42:39,170 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:42:39,170 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-28 23:42:39,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:42:39,226 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;@5df0888f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:42:39,226 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-28 23:42:39,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 246 states have (on average 1.6829268292682926) internal successors, (414), 255 states have internal predecessors, (414), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:42:39,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-28 23:42:39,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:39,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-28 23:42:39,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:39,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:39,244 INFO L85 PathProgramCache]: Analyzing trace with hash -241347426, now seen corresponding path program 1 times [2023-11-28 23:42:39,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:39,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357347084] [2023-11-28 23:42:39,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:39,255 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 [2023-11-28 23:42:39,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:39,296 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:39,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:39,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:42:39,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:39,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:42:39,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:39,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357347084] [2023-11-28 23:42:39,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357347084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:39,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:39,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:42:39,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43095114] [2023-11-28 23:42:39,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:39,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:42:39,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:39,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:42:39,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:42:39,550 INFO L87 Difference]: Start difference. First operand has 265 states, 246 states have (on average 1.6829268292682926) internal successors, (414), 255 states have internal predecessors, (414), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:42:39,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:39,601 INFO L93 Difference]: Finished difference Result 263 states and 345 transitions. [2023-11-28 23:42:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:42:39,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-28 23:42:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:39,614 INFO L225 Difference]: With dead ends: 263 [2023-11-28 23:42:39,614 INFO L226 Difference]: Without dead ends: 262 [2023-11-28 23:42:39,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:42:39,619 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:39,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:42:39,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-28 23:42:39,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2023-11-28 23:42:39,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 245 states have (on average 1.3061224489795917) internal successors, (320), 252 states have internal predecessors, (320), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:42:39,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 344 transitions. [2023-11-28 23:42:39,670 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 344 transitions. Word has length 6 [2023-11-28 23:42:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:39,670 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 344 transitions. [2023-11-28 23:42:39,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:42:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 344 transitions. [2023-11-28 23:42:39,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-28 23:42:39,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:39,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-28 23:42:39,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:39,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:39,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:39,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:39,877 INFO L85 PathProgramCache]: Analyzing trace with hash -901664941, now seen corresponding path program 1 times [2023-11-28 23:42:39,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:39,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607341840] [2023-11-28 23:42:39,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:39,878 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 [2023-11-28 23:42:39,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:39,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:39,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:40,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 23:42:40,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:40,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:42:40,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607341840] [2023-11-28 23:42:40,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607341840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:40,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:40,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:42:40,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909785766] [2023-11-28 23:42:40,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:40,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:42:40,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:40,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:42:40,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:42:40,042 INFO L87 Difference]: Start difference. First operand 262 states and 344 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:42:40,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:40,293 INFO L93 Difference]: Finished difference Result 508 states and 672 transitions. [2023-11-28 23:42:40,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:42:40,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-28 23:42:40,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:40,298 INFO L225 Difference]: With dead ends: 508 [2023-11-28 23:42:40,298 INFO L226 Difference]: Without dead ends: 508 [2023-11-28 23:42:40,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:42:40,300 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 303 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:40,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 707 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:42:40,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-28 23:42:40,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 264. [2023-11-28 23:42:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 247 states have (on average 1.3036437246963564) internal successors, (322), 254 states have internal predecessors, (322), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:42:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 346 transitions. [2023-11-28 23:42:40,327 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 346 transitions. Word has length 6 [2023-11-28 23:42:40,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:40,327 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 346 transitions. [2023-11-28 23:42:40,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:42:40,327 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 346 transitions. [2023-11-28 23:42:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-28 23:42:40,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:40,334 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:40,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:40,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:40,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:40,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:40,536 INFO L85 PathProgramCache]: Analyzing trace with hash -55543254, now seen corresponding path program 1 times [2023-11-28 23:42:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:40,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467897496] [2023-11-28 23:42:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:40,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:40,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:40,547 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:40,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:41,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:42:41,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:41,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:42:41,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:41,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467897496] [2023-11-28 23:42:41,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467897496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:41,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:41,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:42:41,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725974112] [2023-11-28 23:42:41,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:41,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:42:41,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:41,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:42:41,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:42:41,224 INFO L87 Difference]: Start difference. First operand 264 states and 346 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2023-11-28 23:42:41,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:41,342 INFO L93 Difference]: Finished difference Result 268 states and 342 transitions. [2023-11-28 23:42:41,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:42:41,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 151 [2023-11-28 23:42:41,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:41,344 INFO L225 Difference]: With dead ends: 268 [2023-11-28 23:42:41,345 INFO L226 Difference]: Without dead ends: 268 [2023-11-28 23:42:41,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:42:41,346 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 36 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:41,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 912 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:42:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-28 23:42:41,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 267. [2023-11-28 23:42:41,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 250 states have (on average 1.268) internal successors, (317), 257 states have internal predecessors, (317), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:42:41,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 341 transitions. [2023-11-28 23:42:41,361 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 341 transitions. Word has length 151 [2023-11-28 23:42:41,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:41,361 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 341 transitions. [2023-11-28 23:42:41,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2023-11-28 23:42:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 341 transitions. [2023-11-28 23:42:41,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-28 23:42:41,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:41,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:41,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-28 23:42:41,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:41,568 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:41,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:41,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1320260766, now seen corresponding path program 1 times [2023-11-28 23:42:41,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:41,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480209679] [2023-11-28 23:42:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:41,571 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 [2023-11-28 23:42:41,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:41,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:41,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:42,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:42:42,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:42,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:42:42,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:42,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480209679] [2023-11-28 23:42:42,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480209679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:42,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:42,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:42:42,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441571692] [2023-11-28 23:42:42,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:42,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:42:42,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:42,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:42:42,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:42:42,474 INFO L87 Difference]: Start difference. First operand 267 states and 341 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 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) [2023-11-28 23:42:43,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:43,093 INFO L93 Difference]: Finished difference Result 309 states and 387 transitions. [2023-11-28 23:42:43,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:42:43,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 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 151 [2023-11-28 23:42:43,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:43,096 INFO L225 Difference]: With dead ends: 309 [2023-11-28 23:42:43,096 INFO L226 Difference]: Without dead ends: 309 [2023-11-28 23:42:43,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:42:43,098 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 11 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:43,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 644 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:42:43,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-28 23:42:43,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2023-11-28 23:42:43,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 292 states have (on average 1.2431506849315068) internal successors, (363), 299 states have internal predecessors, (363), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:42:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 387 transitions. [2023-11-28 23:42:43,109 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 387 transitions. Word has length 151 [2023-11-28 23:42:43,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:43,110 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 387 transitions. [2023-11-28 23:42:43,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 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) [2023-11-28 23:42:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 387 transitions. [2023-11-28 23:42:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-28 23:42:43,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:43,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:43,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-28 23:42:43,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:43,315 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:43,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:43,316 INFO L85 PathProgramCache]: Analyzing trace with hash -877899498, now seen corresponding path program 1 times [2023-11-28 23:42:43,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:43,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985914556] [2023-11-28 23:42:43,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:43,317 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 [2023-11-28 23:42:43,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:43,318 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:43,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:44,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:42:44,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:44,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:44,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:42:44,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:44,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985914556] [2023-11-28 23:42:44,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985914556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:44,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:44,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:42:44,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135254621] [2023-11-28 23:42:44,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:44,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:42:44,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:44,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:42:44,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:42:44,048 INFO L87 Difference]: Start difference. First operand 309 states and 387 transitions. Second operand has 4 states, 3 states have (on average 53.0) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 23:42:44,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:44,142 INFO L93 Difference]: Finished difference Result 311 states and 391 transitions. [2023-11-28 23:42:44,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:42:44,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 53.0) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 164 [2023-11-28 23:42:44,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:44,145 INFO L225 Difference]: With dead ends: 311 [2023-11-28 23:42:44,145 INFO L226 Difference]: Without dead ends: 311 [2023-11-28 23:42:44,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:42:44,146 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:44,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 974 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:42:44,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-28 23:42:44,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2023-11-28 23:42:44,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 293 states have (on average 1.2457337883959045) internal successors, (365), 301 states have internal predecessors, (365), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:42:44,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 391 transitions. [2023-11-28 23:42:44,159 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 391 transitions. Word has length 164 [2023-11-28 23:42:44,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:44,159 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 391 transitions. [2023-11-28 23:42:44,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 53.0) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 23:42:44,160 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 391 transitions. [2023-11-28 23:42:44,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-28 23:42:44,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:44,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:44,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-28 23:42:44,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:44,368 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:44,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:44,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1171950162, now seen corresponding path program 1 times [2023-11-28 23:42:44,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:44,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698507757] [2023-11-28 23:42:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:44,370 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 [2023-11-28 23:42:44,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:44,371 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:44,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:45,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:42:45,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 23:42:45,134 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:42:45,238 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-28 23:42:45,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:45,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698507757] [2023-11-28 23:42:45,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698507757] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:42:45,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:42:45,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-28 23:42:45,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530245858] [2023-11-28 23:42:45,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:42:45,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:42:45,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:45,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:42:45,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:42:45,242 INFO L87 Difference]: Start difference. First operand 311 states and 391 transitions. Second operand has 8 states, 6 states have (on average 27.833333333333332) internal successors, (167), 8 states have internal predecessors, (167), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:42:45,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:45,506 INFO L93 Difference]: Finished difference Result 320 states and 406 transitions. [2023-11-28 23:42:45,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 23:42:45,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 27.833333333333332) internal successors, (167), 8 states have internal predecessors, (167), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 166 [2023-11-28 23:42:45,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:45,510 INFO L225 Difference]: With dead ends: 320 [2023-11-28 23:42:45,510 INFO L226 Difference]: Without dead ends: 320 [2023-11-28 23:42:45,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:42:45,511 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 6 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:45,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1610 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:42:45,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-28 23:42:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 319. [2023-11-28 23:42:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 300 states have (on average 1.26) internal successors, (378), 308 states have internal predecessors, (378), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:42:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 404 transitions. [2023-11-28 23:42:45,524 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 404 transitions. Word has length 166 [2023-11-28 23:42:45,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:45,524 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 404 transitions. [2023-11-28 23:42:45,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 27.833333333333332) internal successors, (167), 8 states have internal predecessors, (167), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:42:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 404 transitions. [2023-11-28 23:42:45,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-28 23:42:45,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:45,527 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:45,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-28 23:42:45,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:45,728 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:45,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:45,728 INFO L85 PathProgramCache]: Analyzing trace with hash 773698742, now seen corresponding path program 2 times [2023-11-28 23:42:45,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:45,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868687087] [2023-11-28 23:42:45,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:42:45,729 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 [2023-11-28 23:42:45,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:45,730 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:45,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:46,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:42:46,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:42:46,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:42:46,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-28 23:42:46,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:42:46,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:46,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868687087] [2023-11-28 23:42:46,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868687087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:46,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:46,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:42:46,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022586185] [2023-11-28 23:42:46,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:46,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:42:46,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:46,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:42:46,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:42:46,159 INFO L87 Difference]: Start difference. First operand 319 states and 404 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:42:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:46,291 INFO L93 Difference]: Finished difference Result 323 states and 400 transitions. [2023-11-28 23:42:46,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:42:46,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 170 [2023-11-28 23:42:46,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:46,294 INFO L225 Difference]: With dead ends: 323 [2023-11-28 23:42:46,295 INFO L226 Difference]: Without dead ends: 323 [2023-11-28 23:42:46,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:42:46,296 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 43 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:46,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 876 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:42:46,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-11-28 23:42:46,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 322. [2023-11-28 23:42:46,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 303 states have (on average 1.231023102310231) internal successors, (373), 311 states have internal predecessors, (373), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:42:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 399 transitions. [2023-11-28 23:42:46,307 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 399 transitions. Word has length 170 [2023-11-28 23:42:46,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:46,308 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 399 transitions. [2023-11-28 23:42:46,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:42:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 399 transitions. [2023-11-28 23:42:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-28 23:42:46,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:46,311 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:46,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-28 23:42:46,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:46,511 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:46,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:46,512 INFO L85 PathProgramCache]: Analyzing trace with hash -868952220, now seen corresponding path program 1 times [2023-11-28 23:42:46,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:46,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018259586] [2023-11-28 23:42:46,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:46,513 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 [2023-11-28 23:42:46,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:46,514 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:46,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:47,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:42:47,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:47,357 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-28 23:42:47,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:42:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 23:42:47,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:47,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018259586] [2023-11-28 23:42:47,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018259586] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:42:47,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:42:47,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-28 23:42:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892798624] [2023-11-28 23:42:47,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:42:47,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 23:42:47,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 23:42:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:42:47,592 INFO L87 Difference]: Start difference. First operand 322 states and 399 transitions. Second operand has 14 states, 12 states have (on average 14.416666666666666) internal successors, (173), 14 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:42:48,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:48,513 INFO L93 Difference]: Finished difference Result 337 states and 425 transitions. [2023-11-28 23:42:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 23:42:48,514 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 14.416666666666666) internal successors, (173), 14 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 170 [2023-11-28 23:42:48,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:48,516 INFO L225 Difference]: With dead ends: 337 [2023-11-28 23:42:48,516 INFO L226 Difference]: Without dead ends: 335 [2023-11-28 23:42:48,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-28 23:42:48,517 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 13 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:48,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2799 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:42:48,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-11-28 23:42:48,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 331. [2023-11-28 23:42:48,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 312 states have (on average 1.233974358974359) internal successors, (385), 320 states have internal predecessors, (385), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:42:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 411 transitions. [2023-11-28 23:42:48,528 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 411 transitions. Word has length 170 [2023-11-28 23:42:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:48,529 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 411 transitions. [2023-11-28 23:42:48,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 14.416666666666666) internal successors, (173), 14 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:42:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 411 transitions. [2023-11-28 23:42:48,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-28 23:42:48,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:48,531 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:48,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:48,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:48,732 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:48,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:48,733 INFO L85 PathProgramCache]: Analyzing trace with hash 83318163, now seen corresponding path program 2 times [2023-11-28 23:42:48,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:48,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043281736] [2023-11-28 23:42:48,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:42:48,734 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 [2023-11-28 23:42:48,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:48,734 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:48,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:49,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:42:49,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:42:49,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:42:49,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2023-11-28 23:42:49,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:42:49,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:49,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043281736] [2023-11-28 23:42:49,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043281736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:49,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:49,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:42:49,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734126023] [2023-11-28 23:42:49,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:49,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:42:49,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:49,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:42:49,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:42:49,143 INFO L87 Difference]: Start difference. First operand 331 states and 411 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:42:49,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:49,228 INFO L93 Difference]: Finished difference Result 325 states and 401 transitions. [2023-11-28 23:42:49,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:42:49,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 179 [2023-11-28 23:42:49,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:49,232 INFO L225 Difference]: With dead ends: 325 [2023-11-28 23:42:49,232 INFO L226 Difference]: Without dead ends: 325 [2023-11-28 23:42:49,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:42:49,233 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 9 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:49,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 877 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:42:49,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-28 23:42:49,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2023-11-28 23:42:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 306 states have (on average 1.2254901960784315) internal successors, (375), 314 states have internal predecessors, (375), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:42:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 401 transitions. [2023-11-28 23:42:49,244 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 401 transitions. Word has length 179 [2023-11-28 23:42:49,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:49,245 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 401 transitions. [2023-11-28 23:42:49,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:42:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 401 transitions. [2023-11-28 23:42:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-28 23:42:49,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:49,248 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:49,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-28 23:42:49,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:49,449 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:49,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:49,449 INFO L85 PathProgramCache]: Analyzing trace with hash -378787623, now seen corresponding path program 1 times [2023-11-28 23:42:49,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:49,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042842264] [2023-11-28 23:42:49,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:49,450 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 [2023-11-28 23:42:49,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:49,451 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:49,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:50,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:42:50,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 69 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-28 23:42:50,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:42:51,150 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 1 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-28 23:42:51,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:51,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042842264] [2023-11-28 23:42:51,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042842264] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:42:51,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:42:51,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-28 23:42:51,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416663906] [2023-11-28 23:42:51,152 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:42:51,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 23:42:51,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:51,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 23:42:51,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-28 23:42:51,154 INFO L87 Difference]: Start difference. First operand 325 states and 401 transitions. Second operand has 26 states, 24 states have (on average 7.708333333333333) internal successors, (185), 26 states have internal predecessors, (185), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:42:53,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:42:53,892 INFO L93 Difference]: Finished difference Result 355 states and 457 transitions. [2023-11-28 23:42:53,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-28 23:42:53,893 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 7.708333333333333) internal successors, (185), 26 states have internal predecessors, (185), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 179 [2023-11-28 23:42:53,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:42:53,895 INFO L225 Difference]: With dead ends: 355 [2023-11-28 23:42:53,895 INFO L226 Difference]: Without dead ends: 353 [2023-11-28 23:42:53,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-28 23:42:53,897 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 24 mSDsluCounter, 3989 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:42:53,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4300 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-28 23:42:53,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-28 23:42:53,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 343. [2023-11-28 23:42:53,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 324 states have (on average 1.2314814814814814) internal successors, (399), 332 states have internal predecessors, (399), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:42:53,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 425 transitions. [2023-11-28 23:42:53,909 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 425 transitions. Word has length 179 [2023-11-28 23:42:53,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:42:53,909 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 425 transitions. [2023-11-28 23:42:53,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 7.708333333333333) internal successors, (185), 26 states have internal predecessors, (185), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:42:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 425 transitions. [2023-11-28 23:42:53,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-28 23:42:53,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:42:53,911 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:42:53,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:54,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:42:54,111 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:42:54,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash -923612679, now seen corresponding path program 2 times [2023-11-28 23:42:54,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:42:54,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269948217] [2023-11-28 23:42:54,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:42:54,113 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 [2023-11-28 23:42:54,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:42:54,114 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:42:54,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:42:54,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:42:54,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:42:54,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-28 23:42:54,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:42:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 279 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-28 23:42:55,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:42:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 1 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-28 23:42:57,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:42:57,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269948217] [2023-11-28 23:42:57,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269948217] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:42:57,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:42:57,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-28 23:42:57,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254429474] [2023-11-28 23:42:57,468 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:42:57,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-28 23:42:57,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:42:57,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-28 23:42:57,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-28 23:42:57,471 INFO L87 Difference]: Start difference. First operand 343 states and 425 transitions. Second operand has 50 states, 48 states have (on average 4.354166666666667) internal successors, (209), 50 states have internal predecessors, (209), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:43:08,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:43:08,356 INFO L93 Difference]: Finished difference Result 401 states and 537 transitions. [2023-11-28 23:43:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-28 23:43:08,356 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 4.354166666666667) internal successors, (209), 50 states have internal predecessors, (209), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 197 [2023-11-28 23:43:08,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:43:08,359 INFO L225 Difference]: With dead ends: 401 [2023-11-28 23:43:08,359 INFO L226 Difference]: Without dead ends: 399 [2023-11-28 23:43:08,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-28 23:43:08,364 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 49 mSDsluCounter, 7369 mSDsCounter, 0 mSdLazyCounter, 3120 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 7680 SdHoareTripleChecker+Invalid, 3242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 3120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:43:08,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 7680 Invalid, 3242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 3120 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-28 23:43:08,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-11-28 23:43:08,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 377. [2023-11-28 23:43:08,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 358 states have (on average 1.2430167597765363) internal successors, (445), 366 states have internal predecessors, (445), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:43:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 471 transitions. [2023-11-28 23:43:08,382 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 471 transitions. Word has length 197 [2023-11-28 23:43:08,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:43:08,383 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 471 transitions. [2023-11-28 23:43:08,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 4.354166666666667) internal successors, (209), 50 states have internal predecessors, (209), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:43:08,383 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 471 transitions. [2023-11-28 23:43:08,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-28 23:43:08,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:43:08,385 INFO L195 NwaCegarLoop]: trace histogram [67, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:08,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-28 23:43:08,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:43:08,586 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:43:08,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:08,586 INFO L85 PathProgramCache]: Analyzing trace with hash -86038759, now seen corresponding path program 3 times [2023-11-28 23:43:08,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:43:08,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097346700] [2023-11-28 23:43:08,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:43:08,588 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 [2023-11-28 23:43:08,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:43:08,589 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:43:08,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:43:09,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 23:43:09,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:43:09,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:43:09,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:43:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2023-11-28 23:43:09,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:43:09,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:43:09,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097346700] [2023-11-28 23:43:09,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097346700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:09,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:09,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:43:09,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281054191] [2023-11-28 23:43:09,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:09,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:43:09,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:43:09,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:43:09,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:43:09,316 INFO L87 Difference]: Start difference. First operand 377 states and 471 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:43:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:43:09,414 INFO L93 Difference]: Finished difference Result 381 states and 467 transitions. [2023-11-28 23:43:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:43:09,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 231 [2023-11-28 23:43:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:43:09,417 INFO L225 Difference]: With dead ends: 381 [2023-11-28 23:43:09,417 INFO L226 Difference]: Without dead ends: 381 [2023-11-28 23:43:09,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:43:09,418 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 37 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:43:09,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 833 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:43:09,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-28 23:43:09,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 380. [2023-11-28 23:43:09,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 361 states have (on average 1.2188365650969528) internal successors, (440), 369 states have internal predecessors, (440), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:43:09,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 466 transitions. [2023-11-28 23:43:09,430 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 466 transitions. Word has length 231 [2023-11-28 23:43:09,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:43:09,430 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 466 transitions. [2023-11-28 23:43:09,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:43:09,430 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 466 transitions. [2023-11-28 23:43:09,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-28 23:43:09,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:43:09,432 INFO L195 NwaCegarLoop]: trace histogram [67, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:09,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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)] Ended with exit code 0 [2023-11-28 23:43:09,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:43:09,633 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:43:09,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:09,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1418594597, now seen corresponding path program 1 times [2023-11-28 23:43:09,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:43:09,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047755059] [2023-11-28 23:43:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:09,635 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 [2023-11-28 23:43:09,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:43:09,636 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:43:09,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:43:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:11,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-28 23:43:11,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:43:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 1082 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-28 23:43:11,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:43:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 1082 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-28 23:43:13,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:43:13,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047755059] [2023-11-28 23:43:13,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047755059] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:43:13,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:43:13,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-28 23:43:13,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240469298] [2023-11-28 23:43:13,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:43:13,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-28 23:43:13,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:43:13,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-28 23:43:13,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-28 23:43:13,803 INFO L87 Difference]: Start difference. First operand 380 states and 466 transitions. Second operand has 52 states, 50 states have (on average 4.16) internal successors, (208), 52 states have internal predecessors, (208), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:43:24,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:43:24,455 INFO L93 Difference]: Finished difference Result 429 states and 564 transitions. [2023-11-28 23:43:24,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-28 23:43:24,455 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 4.16) internal successors, (208), 52 states have internal predecessors, (208), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 231 [2023-11-28 23:43:24,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:43:24,458 INFO L225 Difference]: With dead ends: 429 [2023-11-28 23:43:24,458 INFO L226 Difference]: Without dead ends: 429 [2023-11-28 23:43:24,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3565 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-28 23:43:24,465 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 54 mSDsluCounter, 7058 mSDsCounter, 0 mSdLazyCounter, 2671 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 7357 SdHoareTripleChecker+Invalid, 2717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:43:24,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 7357 Invalid, 2717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2671 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-28 23:43:24,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-11-28 23:43:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 405. [2023-11-28 23:43:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 386 states have (on average 1.2694300518134716) internal successors, (490), 394 states have internal predecessors, (490), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:43:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 516 transitions. [2023-11-28 23:43:24,489 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 516 transitions. Word has length 231 [2023-11-28 23:43:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:43:24,490 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 516 transitions. [2023-11-28 23:43:24,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 4.16) internal successors, (208), 52 states have internal predecessors, (208), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:43:24,490 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 516 transitions. [2023-11-28 23:43:24,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-28 23:43:24,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:43:24,492 INFO L195 NwaCegarLoop]: trace histogram [92, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:24,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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)] Ended with exit code 0 [2023-11-28 23:43:24,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:43:24,693 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:43:24,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:24,694 INFO L85 PathProgramCache]: Analyzing trace with hash -83581610, now seen corresponding path program 2 times [2023-11-28 23:43:24,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:43:24,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874401755] [2023-11-28 23:43:24,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:43:24,696 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 [2023-11-28 23:43:24,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:43:24,697 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:43:24,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-28 23:43:26,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:43:26,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:43:26,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-28 23:43:26,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:43:28,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 2207 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-28 23:43:28,470 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:43:37,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 2207 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-28 23:43:37,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:43:37,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874401755] [2023-11-28 23:43:37,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874401755] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:43:37,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:43:37,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-28 23:43:37,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848621542] [2023-11-28 23:43:37,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:43:37,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-28 23:43:37,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:43:37,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-28 23:43:37,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-28 23:43:37,132 INFO L87 Difference]: Start difference. First operand 405 states and 516 transitions. Second operand has 102 states, 100 states have (on average 2.58) internal successors, (258), 102 states have internal predecessors, (258), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:44:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:44:35,793 INFO L93 Difference]: Finished difference Result 512 states and 729 transitions. [2023-11-28 23:44:35,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-28 23:44:35,794 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.58) internal successors, (258), 102 states have internal predecessors, (258), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 256 [2023-11-28 23:44:35,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:44:35,797 INFO L225 Difference]: With dead ends: 512 [2023-11-28 23:44:35,797 INFO L226 Difference]: Without dead ends: 512 [2023-11-28 23:44:35,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 46.8s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-28 23:44:35,806 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 164 mSDsluCounter, 14407 mSDsCounter, 0 mSdLazyCounter, 10695 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 14706 SdHoareTripleChecker+Invalid, 10755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 10695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:44:35,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 14706 Invalid, 10755 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 10695 Invalid, 0 Unknown, 0 Unchecked, 20.3s Time] [2023-11-28 23:44:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-28 23:44:35,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 459. [2023-11-28 23:44:35,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 440 states have (on average 1.356818181818182) internal successors, (597), 448 states have internal predecessors, (597), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 23:44:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 623 transitions. [2023-11-28 23:44:35,832 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 623 transitions. Word has length 256 [2023-11-28 23:44:35,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:44:35,833 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 623 transitions. [2023-11-28 23:44:35,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.58) internal successors, (258), 102 states have internal predecessors, (258), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:44:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 623 transitions. [2023-11-28 23:44:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-11-28 23:44:35,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:44:35,836 INFO L195 NwaCegarLoop]: trace histogram [142, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:44:35,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-28 23:44:36,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:44:36,037 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:44:36,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:36,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1085882314, now seen corresponding path program 3 times [2023-11-28 23:44:36,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:44:36,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935420683] [2023-11-28 23:44:36,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:44:36,040 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 [2023-11-28 23:44:36,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:44:36,042 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:44:36,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-28 23:44:36,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 23:44:36,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:44:36,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:44:36,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:44:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 10299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2023-11-28 23:44:37,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:44:37,529 INFO L134 CoverageAnalysis]: Checked inductivity of 10299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2023-11-28 23:44:37,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:44:37,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935420683] [2023-11-28 23:44:37,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935420683] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:44:37,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:44:37,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-28 23:44:37,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731871579] [2023-11-28 23:44:37,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:44:37,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:44:37,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:44:37,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:44:37,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:44:37,532 INFO L87 Difference]: Start difference. First operand 459 states and 623 transitions. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:44:38,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:44:38,125 INFO L93 Difference]: Finished difference Result 1092 states and 1401 transitions. [2023-11-28 23:44:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:44:38,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 306 [2023-11-28 23:44:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:44:38,132 INFO L225 Difference]: With dead ends: 1092 [2023-11-28 23:44:38,132 INFO L226 Difference]: Without dead ends: 1092 [2023-11-28 23:44:38,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:44:38,133 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 1503 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:44:38,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 1360 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:44:38,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2023-11-28 23:44:38,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1023. [2023-11-28 23:44:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 981 states have (on average 1.2599388379204892) internal successors, (1236), 994 states have internal predecessors, (1236), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (42), 26 states have call predecessors, (42), 34 states have call successors, (42) [2023-11-28 23:44:38,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1314 transitions. [2023-11-28 23:44:38,156 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1314 transitions. Word has length 306 [2023-11-28 23:44:38,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:44:38,157 INFO L495 AbstractCegarLoop]: Abstraction has 1023 states and 1314 transitions. [2023-11-28 23:44:38,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:44:38,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1314 transitions. [2023-11-28 23:44:38,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2023-11-28 23:44:38,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:44:38,179 INFO L195 NwaCegarLoop]: trace histogram [142, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-28 23:44:38,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-28 23:44:38,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:44:38,380 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:44:38,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash -87003378, now seen corresponding path program 1 times [2023-11-28 23:44:38,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:44:38,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145095685] [2023-11-28 23:44:38,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:38,384 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 [2023-11-28 23:44:38,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:44:38,385 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:44:38,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-28 23:44:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:42,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 3686 conjuncts, 101 conjunts are in the unsatisfiable core [2023-11-28 23:44:42,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:44:49,990 INFO L134 CoverageAnalysis]: Checked inductivity of 10932 backedges. 4568 proven. 4851 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2023-11-28 23:44:49,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:45:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 10932 backedges. 4568 proven. 4851 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2023-11-28 23:45:25,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:45:25,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145095685] [2023-11-28 23:45:25,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145095685] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:45:25,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:45:25,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-28 23:45:25,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165196502] [2023-11-28 23:45:25,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:45:25,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-28 23:45:25,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:45:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-28 23:45:25,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-28 23:45:25,658 INFO L87 Difference]: Start difference. First operand 1023 states and 1314 transitions. Second operand has 202 states, 200 states have (on average 1.985) internal successors, (397), 202 states have internal predecessors, (397), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:51:20,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:51:20,600 INFO L93 Difference]: Finished difference Result 1226 states and 2338 transitions. [2023-11-28 23:51:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2023-11-28 23:51:20,601 INFO L78 Accepts]: Start accepts. Automaton has has 202 states, 200 states have (on average 1.985) internal successors, (397), 202 states have internal predecessors, (397), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 624 [2023-11-28 23:51:20,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:51:20,611 INFO L225 Difference]: With dead ends: 1226 [2023-11-28 23:51:20,611 INFO L226 Difference]: Without dead ends: 1226 [2023-11-28 23:51:20,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1443 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 397 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29008 ImplicationChecksByTransitivity, 283.7s TimeCoverageRelationStatistics Valid=50195, Invalid=108607, Unknown=0, NotChecked=0, Total=158802 [2023-11-28 23:51:20,622 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 215 mSDsluCounter, 29107 mSDsCounter, 0 mSdLazyCounter, 41395 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 29406 SdHoareTripleChecker+Invalid, 41550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 41395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:51:20,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 29406 Invalid, 41550 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [155 Valid, 41395 Invalid, 0 Unknown, 0 Unchecked, 105.2s Time] [2023-11-28 23:51:20,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2023-11-28 23:51:20,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1123. [2023-11-28 23:51:20,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1081 states have (on average 1.3283996299722478) internal successors, (1436), 1094 states have internal predecessors, (1436), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (42), 26 states have call predecessors, (42), 34 states have call successors, (42) [2023-11-28 23:51:20,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1514 transitions. [2023-11-28 23:51:20,786 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1514 transitions. Word has length 624 [2023-11-28 23:51:20,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:51:20,786 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1514 transitions. [2023-11-28 23:51:20,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 200 states have (on average 1.985) internal successors, (397), 202 states have internal predecessors, (397), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:51:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1514 transitions. [2023-11-28 23:51:20,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2023-11-28 23:51:20,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:51:20,800 INFO L195 NwaCegarLoop]: trace histogram [242, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-28 23:51:20,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-28 23:51:21,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:51:21,001 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:51:21,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:51:21,006 INFO L85 PathProgramCache]: Analyzing trace with hash 427011278, now seen corresponding path program 2 times [2023-11-28 23:51:21,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:51:21,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691647155] [2023-11-28 23:51:21,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:51:21,009 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 [2023-11-28 23:51:21,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:51:21,010 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:51:21,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd2ec8c8-b692-4bf8-b188-5c053b41481f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-28 23:51:26,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:51:26,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:51:26,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 4786 conjuncts, 201 conjunts are in the unsatisfiable core [2023-11-28 23:51:26,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:51:59,471 INFO L134 CoverageAnalysis]: Checked inductivity of 30282 backedges. 9068 proven. 19701 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2023-11-28 23:51:59,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:27,241 WARN L293 SmtUtils]: Spent 27.75s on a formula simplification. DAG size of input: 602 DAG size of output: 601 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-28 23:54:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 30282 backedges. 9068 proven. 19701 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2023-11-28 23:54:22,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:54:22,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691647155] [2023-11-28 23:54:22,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691647155] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:54:22,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:54:22,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [202, 202] total 402 [2023-11-28 23:54:22,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320650118] [2023-11-28 23:54:22,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:22,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 402 states [2023-11-28 23:54:22,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:54:22,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 402 interpolants. [2023-11-28 23:54:22,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40710, Invalid=120492, Unknown=0, NotChecked=0, Total=161202 [2023-11-28 23:54:22,854 INFO L87 Difference]: Start difference. First operand 1123 states and 1514 transitions. Second operand has 402 states, 400 states have (on average 1.4925) internal successors, (597), 402 states have internal predecessors, (597), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)