./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.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_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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_699ab7b4-7d4d-4432-ac20-df49312621b8/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 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:14:55,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:14:55,127 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 03:14:55,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:14:55,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:14:55,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:14:55,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:14:55,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:14:55,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:14:55,159 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:14:55,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:14:55,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:14:55,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:14:55,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:14:55,162 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:14:55,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:14:55,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:14:55,164 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:14:55,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:14:55,165 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:14:55,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:14:55,166 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:14:55,166 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 03:14:55,167 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 03:14:55,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:14:55,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:14:55,168 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:14:55,169 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:14:55,169 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:14:55,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:14:55,170 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:14:55,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:14:55,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:14:55,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:14:55,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:14:55,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:14:55,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:14:55,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:14:55,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:14:55,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:14:55,172 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:14:55,172 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:14:55,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:14:55,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:14:55,173 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_699ab7b4-7d4d-4432-ac20-df49312621b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2023-11-29 03:14:55,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:14:55,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:14:55,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:14:55,414 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:14:55,415 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:14:55,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-29 03:14:58,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:14:58,474 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:14:58,475 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-29 03:14:58,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/data/48ceb2ed8/d807814078ee47a8806c8303a6f7a3a4/FLAG0b37c4fab [2023-11-29 03:14:58,507 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/data/48ceb2ed8/d807814078ee47a8806c8303a6f7a3a4 [2023-11-29 03:14:58,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:14:58,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:14:58,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:14:58,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:14:58,518 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:14:58,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:14:58" (1/1) ... [2023-11-29 03:14:58,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fda86a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:14:58, skipping insertion in model container [2023-11-29 03:14:58,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:14:58" (1/1) ... [2023-11-29 03:14:58,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:14:59,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:14:59,131 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) [2023-11-29 03:14:59,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16dd251a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:14:59, skipping insertion in model container [2023-11-29 03:14:59,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:14:59,132 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 03:14:59,134 INFO L158 Benchmark]: Toolchain (without parser) took 621.45ms. Allocated memory is still 169.9MB. Free memory was 134.7MB in the beginning and 115.3MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 03:14:59,134 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 138.0MB in the end (delta: 43.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:14:59,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.11ms. Allocated memory is still 169.9MB. Free memory was 134.7MB in the beginning and 115.3MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 03:14:59,136 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 169.9MB. Free memory was 138.0MB in the beginning and 138.0MB in the end (delta: 43.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 619.11ms. Allocated memory is still 169.9MB. Free memory was 134.7MB in the beginning and 115.3MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: 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_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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_699ab7b4-7d4d-4432-ac20-df49312621b8/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 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:15:00,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:15:00,934 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 03:15:00,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:15:00,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:15:00,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:15:00,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:15:00,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:15:00,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:15:00,976 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:15:00,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:15:00,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:15:00,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:15:00,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:15:00,979 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:15:00,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:15:00,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:15:00,980 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:15:00,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:15:00,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:15:00,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:15:00,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:15:00,982 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 03:15:00,983 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 03:15:00,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:15:00,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:15:00,984 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:15:00,984 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:15:00,985 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:15:00,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:15:00,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:15:00,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:15:00,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:15:00,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:15:00,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:15:00,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:15:00,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:15:00,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:15:00,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:15:00,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:15:00,988 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:15:00,988 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:15:00,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:15:00,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:15:00,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:15:00,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:15:00,989 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:15:00,990 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_699ab7b4-7d4d-4432-ac20-df49312621b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2023-11-29 03:15:01,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:15:01,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:15:01,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:15:01,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:15:01,328 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:15:01,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-29 03:15:04,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:15:04,347 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:15:04,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-29 03:15:04,368 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/data/609909c8c/b8bd05da0000430490018b7a92401267/FLAGbcfe0ebc1 [2023-11-29 03:15:04,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/data/609909c8c/b8bd05da0000430490018b7a92401267 [2023-11-29 03:15:04,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:15:04,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:15:04,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:15:04,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:15:04,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:15:04,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:15:04" (1/1) ... [2023-11-29 03:15:04,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6619912a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:04, skipping insertion in model container [2023-11-29 03:15:04,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:15:04" (1/1) ... [2023-11-29 03:15:04,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:15:05,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:15:05,047 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 03:15:05,072 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:15:05,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:15:05,155 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:15:05,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:15:05,264 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:15:05,272 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:15:05,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05 WrapperNode [2023-11-29 03:15:05,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:15:05,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:15:05,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:15:05,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:15:05,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,367 INFO L138 Inliner]: procedures = 211, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 887 [2023-11-29 03:15:05,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:15:05,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:15:05,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:15:05,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:15:05,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,443 INFO L175 MemorySlicer]: Split 213 memory accesses to 4 slices as follows [2, 172, 5, 34]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 47 writes are split as follows [0, 42, 1, 4]. [2023-11-29 03:15:05,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:15:05,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:15:05,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:15:05,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:15:05,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (1/1) ... [2023-11-29 03:15:05,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:15:05,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:15:05,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:15:05,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:15:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 03:15:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 03:15:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 03:15:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 03:15:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 03:15:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 03:15:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 03:15:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 03:15:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 03:15:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 03:15:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 03:15:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 03:15:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 03:15:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 03:15:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 03:15:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 03:15:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 03:15:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 03:15:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:15:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 03:15:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 03:15:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 03:15:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 03:15:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 03:15:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:15:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 03:15:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 03:15:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 03:15:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 03:15:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:15:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 03:15:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 03:15:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 03:15:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:15:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:15:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:15:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:15:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 03:15:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 03:15:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 03:15:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 03:15:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:15:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:15:05,786 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:15:05,788 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:15:14,221 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:15:14,256 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:15:14,256 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-29 03:15:14,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:15:14 BoogieIcfgContainer [2023-11-29 03:15:14,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:15:14,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:15:14,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:15:14,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:15:14,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:15:04" (1/3) ... [2023-11-29 03:15:14,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65632905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:15:14, skipping insertion in model container [2023-11-29 03:15:14,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:15:05" (2/3) ... [2023-11-29 03:15:14,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65632905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:15:14, skipping insertion in model container [2023-11-29 03:15:14,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:15:14" (3/3) ... [2023-11-29 03:15:14,265 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-1.i [2023-11-29 03:15:14,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:15:14,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 03:15:14,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:15:14,337 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;@1b705855, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:15:14,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 03:15:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 166 states have (on average 1.680722891566265) internal successors, (279), 175 states have internal predecessors, (279), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:15:14,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 03:15:14,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:14,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 03:15:14,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:14,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:14,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1909827479, now seen corresponding path program 1 times [2023-11-29 03:15:14,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:14,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289682781] [2023-11-29 03:15:14,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:15:14,366 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 [2023-11-29 03:15:14,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:14,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:14,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:15:14,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:15:14,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:15:14,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:15:14,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:14,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289682781] [2023-11-29 03:15:14,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289682781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:15:14,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:15:14,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:15:14,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446109594] [2023-11-29 03:15:14,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:15:14,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:15:14,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:14,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:15:14,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:15:14,629 INFO L87 Difference]: Start difference. First operand has 182 states, 166 states have (on average 1.680722891566265) internal successors, (279), 175 states have internal predecessors, (279), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) 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) [2023-11-29 03:15:14,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:14,684 INFO L93 Difference]: Finished difference Result 180 states and 236 transitions. [2023-11-29 03:15:14,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:15:14,686 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 [2023-11-29 03:15:14,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:14,697 INFO L225 Difference]: With dead ends: 180 [2023-11-29 03:15:14,697 INFO L226 Difference]: Without dead ends: 179 [2023-11-29 03:15:14,699 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 [2023-11-29 03:15:14,703 INFO L413 NwaCegarLoop]: 232 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, 232 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 [2023-11-29 03:15:14,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:15:14,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-29 03:15:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-29 03:15:14,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 165 states have (on average 1.3151515151515152) internal successors, (217), 172 states have internal predecessors, (217), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:15:14,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 235 transitions. [2023-11-29 03:15:14,746 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 235 transitions. Word has length 6 [2023-11-29 03:15:14,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:14,747 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 235 transitions. [2023-11-29 03:15:14,747 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) [2023-11-29 03:15:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 235 transitions. [2023-11-29 03:15:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 03:15:14,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:14,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:15:14,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:14,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:14,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:14,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:14,950 INFO L85 PathProgramCache]: Analyzing trace with hash -91055009, now seen corresponding path program 1 times [2023-11-29 03:15:14,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:14,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117021091] [2023-11-29 03:15:14,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:15:14,951 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:15:14,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:14,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:14,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:15:15,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:15:15,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:15,172 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:15:15,173 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:15:15,173 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:15:15,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 03:15:15,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:15:15,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-29 03:15:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:15:15,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:15:15,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:15,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117021091] [2023-11-29 03:15:15,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117021091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:15:15,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:15:15,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:15:15,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529844438] [2023-11-29 03:15:15,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:15:15,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:15:15,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:15,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:15:15,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:15:15,293 INFO L87 Difference]: Start difference. First operand 179 states and 235 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-29 03:15:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:16,023 INFO L93 Difference]: Finished difference Result 343 states and 456 transitions. [2023-11-29 03:15:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:15:16,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-29 03:15:16,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:16,027 INFO L225 Difference]: With dead ends: 343 [2023-11-29 03:15:16,027 INFO L226 Difference]: Without dead ends: 343 [2023-11-29 03:15:16,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:15:16,029 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 201 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:15:16,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 684 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:15:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-29 03:15:16,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 181. [2023-11-29 03:15:16,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 167 states have (on average 1.311377245508982) internal successors, (219), 174 states have internal predecessors, (219), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:15:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 237 transitions. [2023-11-29 03:15:16,051 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 237 transitions. Word has length 8 [2023-11-29 03:15:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:16,051 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 237 transitions. [2023-11-29 03:15:16,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-29 03:15:16,052 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 237 transitions. [2023-11-29 03:15:16,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:15:16,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:16,055 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:15:16,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:16,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:16,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:16,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1135081233, now seen corresponding path program 1 times [2023-11-29 03:15:16,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:16,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000685346] [2023-11-29 03:15:16,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:15:16,261 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 [2023-11-29 03:15:16,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:16,262 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:16,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:15:16,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:15:16,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:15:16,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:15:16,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:16,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000685346] [2023-11-29 03:15:16,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000685346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:15:16,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:15:16,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:15:16,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377408459] [2023-11-29 03:15:16,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:15:16,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:15:16,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:16,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:15:16,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:15:16,684 INFO L87 Difference]: Start difference. First operand 181 states and 237 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-29 03:15:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:16,809 INFO L93 Difference]: Finished difference Result 185 states and 233 transitions. [2023-11-29 03:15:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:15:16,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2023-11-29 03:15:16,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:16,811 INFO L225 Difference]: With dead ends: 185 [2023-11-29 03:15:16,811 INFO L226 Difference]: Without dead ends: 185 [2023-11-29 03:15:16,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:15:16,812 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 36 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 585 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 [2023-11-29 03:15:16,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 585 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:15:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-29 03:15:16,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 184. [2023-11-29 03:15:16,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 170 states have (on average 1.2588235294117647) internal successors, (214), 177 states have internal predecessors, (214), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:15:16,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 232 transitions. [2023-11-29 03:15:16,827 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 232 transitions. Word has length 64 [2023-11-29 03:15:16,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:16,827 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 232 transitions. [2023-11-29 03:15:16,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-29 03:15:16,828 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 232 transitions. [2023-11-29 03:15:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:15:16,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:16,831 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:15:16,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:17,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:17,032 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:17,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:17,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1088686587, now seen corresponding path program 1 times [2023-11-29 03:15:17,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:17,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880602524] [2023-11-29 03:15:17,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:15:17,034 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 [2023-11-29 03:15:17,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:17,035 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:17,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:15:17,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:15:17,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:15:17,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:15:17,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:17,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880602524] [2023-11-29 03:15:17,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880602524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:15:17,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:15:17,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:15:17,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498782952] [2023-11-29 03:15:17,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:15:17,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:15:17,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:17,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:15:17,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:15:17,744 INFO L87 Difference]: Start difference. First operand 184 states and 232 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-11-29 03:15:18,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:18,536 INFO L93 Difference]: Finished difference Result 285 states and 360 transitions. [2023-11-29 03:15:18,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:15:18,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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 64 [2023-11-29 03:15:18,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:18,539 INFO L225 Difference]: With dead ends: 285 [2023-11-29 03:15:18,539 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 03:15:18,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:15:18,541 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 81 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:15:18,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 474 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:15:18,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 03:15:18,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 281. [2023-11-29 03:15:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 262 states have (on average 1.2557251908396947) internal successors, (329), 274 states have internal predecessors, (329), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:15:18,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 357 transitions. [2023-11-29 03:15:18,559 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 357 transitions. Word has length 64 [2023-11-29 03:15:18,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:18,560 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 357 transitions. [2023-11-29 03:15:18,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-11-29 03:15:18,560 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 357 transitions. [2023-11-29 03:15:18,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 03:15:18,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:18,564 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] [2023-11-29 03:15:18,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:18,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:18,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:18,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:18,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1102114320, now seen corresponding path program 1 times [2023-11-29 03:15:18,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:18,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105157186] [2023-11-29 03:15:18,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:15:18,769 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 [2023-11-29 03:15:18,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:18,770 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:18,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:15:19,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:15:19,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:19,280 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:15:19,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:15:19,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:19,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105157186] [2023-11-29 03:15:19,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105157186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:15:19,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:15:19,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:15:19,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472611488] [2023-11-29 03:15:19,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:15:19,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:15:19,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:19,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:15:19,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:15:19,283 INFO L87 Difference]: Start difference. First operand 281 states and 357 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:15:19,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:19,354 INFO L93 Difference]: Finished difference Result 283 states and 360 transitions. [2023-11-29 03:15:19,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:15:19,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-11-29 03:15:19,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:19,358 INFO L225 Difference]: With dead ends: 283 [2023-11-29 03:15:19,358 INFO L226 Difference]: Without dead ends: 283 [2023-11-29 03:15:19,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:15:19,359 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:15:19,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 653 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:15:19,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-29 03:15:19,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-11-29 03:15:19,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 263 states have (on average 1.258555133079848) internal successors, (331), 276 states have internal predecessors, (331), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 03:15:19,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 360 transitions. [2023-11-29 03:15:19,372 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 360 transitions. Word has length 77 [2023-11-29 03:15:19,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:19,373 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 360 transitions. [2023-11-29 03:15:19,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:15:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 360 transitions. [2023-11-29 03:15:19,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 03:15:19,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:19,375 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:15:19,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:19,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:19,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:19,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:19,579 INFO L85 PathProgramCache]: Analyzing trace with hash -986881550, now seen corresponding path program 1 times [2023-11-29 03:15:19,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:19,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746847543] [2023-11-29 03:15:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:15:19,580 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 [2023-11-29 03:15:19,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:19,580 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:19,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:15:20,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:15:20,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:15:20,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:15:20,175 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 03:15:20,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:20,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746847543] [2023-11-29 03:15:20,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746847543] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:15:20,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:15:20,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:15:20,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631425664] [2023-11-29 03:15:20,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:15:20,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:15:20,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:20,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:15:20,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:15:20,179 INFO L87 Difference]: Start difference. First operand 283 states and 360 transitions. Second operand has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:15:20,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:20,395 INFO L93 Difference]: Finished difference Result 292 states and 374 transitions. [2023-11-29 03:15:20,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:15:20,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2023-11-29 03:15:20,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:20,398 INFO L225 Difference]: With dead ends: 292 [2023-11-29 03:15:20,398 INFO L226 Difference]: Without dead ends: 292 [2023-11-29 03:15:20,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:15:20,400 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:15:20,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 653 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:15:20,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-29 03:15:20,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 291. [2023-11-29 03:15:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 270 states have (on average 1.2740740740740741) internal successors, (344), 283 states have internal predecessors, (344), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 03:15:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 373 transitions. [2023-11-29 03:15:20,412 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 373 transitions. Word has length 79 [2023-11-29 03:15:20,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:20,413 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 373 transitions. [2023-11-29 03:15:20,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:15:20,413 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 373 transitions. [2023-11-29 03:15:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 03:15:20,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:20,415 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-29 03:15:20,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:20,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:20,622 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:20,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1294736112, now seen corresponding path program 2 times [2023-11-29 03:15:20,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:20,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223845489] [2023-11-29 03:15:20,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:15:20,623 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 [2023-11-29 03:15:20,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:20,624 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:20,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:20,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:15:20,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:15:20,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:15:20,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:20,915 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:15:20,915 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:15:20,916 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:15:20,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 03:15:20,973 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:15:20,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-29 03:15:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 03:15:20,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:15:20,990 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:20,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223845489] [2023-11-29 03:15:20,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223845489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:15:20,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:15:20,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:15:20,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120370976] [2023-11-29 03:15:20,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:15:20,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:15:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:20,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:15:20,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:15:20,993 INFO L87 Difference]: Start difference. First operand 291 states and 373 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:15:21,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:21,557 INFO L93 Difference]: Finished difference Result 427 states and 564 transitions. [2023-11-29 03:15:21,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:15:21,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2023-11-29 03:15:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:21,560 INFO L225 Difference]: With dead ends: 427 [2023-11-29 03:15:21,560 INFO L226 Difference]: Without dead ends: 427 [2023-11-29 03:15:21,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:15:21,561 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 186 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:15:21,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 655 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:15:21,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-29 03:15:21,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 293. [2023-11-29 03:15:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 272 states have (on average 1.2720588235294117) internal successors, (346), 285 states have internal predecessors, (346), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 03:15:21,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 375 transitions. [2023-11-29 03:15:21,574 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 375 transitions. Word has length 83 [2023-11-29 03:15:21,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:21,574 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 375 transitions. [2023-11-29 03:15:21,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:15:21,575 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 375 transitions. [2023-11-29 03:15:21,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 03:15:21,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:21,577 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-29 03:15:21,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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)] Forceful destruction successful, exit code 0 [2023-11-29 03:15:21,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:21,778 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:21,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:21,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1261222842, now seen corresponding path program 1 times [2023-11-29 03:15:21,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:21,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571688219] [2023-11-29 03:15:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:15:21,779 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 [2023-11-29 03:15:21,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:21,780 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:21,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:15:22,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:15:22,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:22,378 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 03:15:22,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:15:22,572 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:15:22,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:22,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571688219] [2023-11-29 03:15:22,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571688219] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:15:22,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:15:22,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 03:15:22,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122973388] [2023-11-29 03:15:22,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:15:22,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:15:22,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:22,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:15:22,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:15:22,574 INFO L87 Difference]: Start difference. First operand 293 states and 375 transitions. Second operand has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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) [2023-11-29 03:15:23,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:23,265 INFO L93 Difference]: Finished difference Result 308 states and 397 transitions. [2023-11-29 03:15:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 03:15:23,267 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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 122 [2023-11-29 03:15:23,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:23,269 INFO L225 Difference]: With dead ends: 308 [2023-11-29 03:15:23,269 INFO L226 Difference]: Without dead ends: 306 [2023-11-29 03:15:23,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:15:23,271 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 12 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:15:23,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1945 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:15:23,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-11-29 03:15:23,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 302. [2023-11-29 03:15:23,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 281 states have (on average 1.2740213523131672) internal successors, (358), 294 states have internal predecessors, (358), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 03:15:23,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 387 transitions. [2023-11-29 03:15:23,282 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 387 transitions. Word has length 122 [2023-11-29 03:15:23,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:23,283 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 387 transitions. [2023-11-29 03:15:23,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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) [2023-11-29 03:15:23,283 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 387 transitions. [2023-11-29 03:15:23,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 03:15:23,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:23,285 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2023-11-29 03:15:23,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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)] Ended with exit code 0 [2023-11-29 03:15:23,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:23,486 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:23,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:23,486 INFO L85 PathProgramCache]: Analyzing trace with hash 661505761, now seen corresponding path program 2 times [2023-11-29 03:15:23,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:23,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111700253] [2023-11-29 03:15:23,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:15:23,487 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 [2023-11-29 03:15:23,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:23,488 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:23,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:23,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:15:23,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:15:23,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:15:23,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:23,867 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-29 03:15:23,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:15:23,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:23,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111700253] [2023-11-29 03:15:23,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111700253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:15:23,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:15:23,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:15:23,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826842701] [2023-11-29 03:15:23,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:15:23,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:15:23,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:23,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:15:23,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:15:23,870 INFO L87 Difference]: Start difference. First operand 302 states and 387 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2023-11-29 03:15:24,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:24,008 INFO L93 Difference]: Finished difference Result 310 states and 379 transitions. [2023-11-29 03:15:24,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:15:24,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 131 [2023-11-29 03:15:24,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:24,011 INFO L225 Difference]: With dead ends: 310 [2023-11-29 03:15:24,011 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 03:15:24,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:15:24,013 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 36 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 552 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 [2023-11-29 03:15:24,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 552 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:15:24,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 03:15:24,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 308. [2023-11-29 03:15:24,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 287 states have (on average 1.2125435540069687) internal successors, (348), 300 states have internal predecessors, (348), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 03:15:24,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 377 transitions. [2023-11-29 03:15:24,025 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 377 transitions. Word has length 131 [2023-11-29 03:15:24,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:24,025 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 377 transitions. [2023-11-29 03:15:24,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2023-11-29 03:15:24,026 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 377 transitions. [2023-11-29 03:15:24,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 03:15:24,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:24,027 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2023-11-29 03:15:24,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:24,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:24,228 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:24,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1759308245, now seen corresponding path program 1 times [2023-11-29 03:15:24,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:24,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290612235] [2023-11-29 03:15:24,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:15:24,230 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 [2023-11-29 03:15:24,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:24,231 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:24,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:15:24,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:15:24,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:15:24,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:15:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:15:25,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:25,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290612235] [2023-11-29 03:15:25,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290612235] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:15:25,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:15:25,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 03:15:25,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849684267] [2023-11-29 03:15:25,635 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:15:25,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 03:15:25,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:25,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 03:15:25,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:15:25,637 INFO L87 Difference]: Start difference. First operand 308 states and 377 transitions. Second operand has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 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) [2023-11-29 03:15:28,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:28,153 INFO L93 Difference]: Finished difference Result 338 states and 423 transitions. [2023-11-29 03:15:28,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 03:15:28,154 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 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 131 [2023-11-29 03:15:28,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:28,157 INFO L225 Difference]: With dead ends: 338 [2023-11-29 03:15:28,157 INFO L226 Difference]: Without dead ends: 336 [2023-11-29 03:15:28,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 03:15:28,159 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 24 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3281 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:15:28,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3281 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:15:28,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-29 03:15:28,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 326. [2023-11-29 03:15:28,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.219672131147541) internal successors, (372), 318 states have internal predecessors, (372), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 03:15:28,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 401 transitions. [2023-11-29 03:15:28,175 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 401 transitions. Word has length 131 [2023-11-29 03:15:28,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:28,175 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 401 transitions. [2023-11-29 03:15:28,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 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) [2023-11-29 03:15:28,176 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 401 transitions. [2023-11-29 03:15:28,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 03:15:28,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:28,178 INFO L195 NwaCegarLoop]: trace histogram [33, 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] [2023-11-29 03:15:28,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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)] Ended with exit code 0 [2023-11-29 03:15:28,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:28,378 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:28,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:28,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1348464523, now seen corresponding path program 2 times [2023-11-29 03:15:28,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:28,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158787509] [2023-11-29 03:15:28,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:15:28,380 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 [2023-11-29 03:15:28,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:28,381 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:28,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:29,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:15:29,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:15:29,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 03:15:29,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:29,676 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:15:29,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:15:31,553 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 2 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 03:15:31,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:31,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158787509] [2023-11-29 03:15:31,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158787509] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:15:31,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:15:31,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 03:15:31,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856899547] [2023-11-29 03:15:31,554 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:15:31,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 03:15:31,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:31,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 03:15:31,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 03:15:31,557 INFO L87 Difference]: Start difference. First operand 326 states and 401 transitions. Second operand has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 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) [2023-11-29 03:15:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:41,414 INFO L93 Difference]: Finished difference Result 384 states and 491 transitions. [2023-11-29 03:15:41,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 03:15:41,415 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 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 149 [2023-11-29 03:15:41,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:41,417 INFO L225 Difference]: With dead ends: 384 [2023-11-29 03:15:41,417 INFO L226 Difference]: Without dead ends: 382 [2023-11-29 03:15:41,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 03:15:41,422 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 48 mSDsluCounter, 5533 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5741 SdHoareTripleChecker+Invalid, 2601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:15:41,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 5741 Invalid, 2601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2561 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-29 03:15:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-11-29 03:15:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 360. [2023-11-29 03:15:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 339 states have (on average 1.233038348082596) internal successors, (418), 352 states have internal predecessors, (418), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 03:15:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 447 transitions. [2023-11-29 03:15:41,434 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 447 transitions. Word has length 149 [2023-11-29 03:15:41,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:41,434 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 447 transitions. [2023-11-29 03:15:41,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 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) [2023-11-29 03:15:41,434 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 447 transitions. [2023-11-29 03:15:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-29 03:15:41,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:41,437 INFO L195 NwaCegarLoop]: trace histogram [67, 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] [2023-11-29 03:15:41,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:41,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:41,638 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:41,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:41,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1085360427, now seen corresponding path program 3 times [2023-11-29 03:15:41,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:41,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645732430] [2023-11-29 03:15:41,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:15:41,639 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 [2023-11-29 03:15:41,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:41,640 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:41,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:42,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:15:42,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:15:42,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:15:42,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:42,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2023-11-29 03:15:42,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:15:42,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:42,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645732430] [2023-11-29 03:15:42,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645732430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:15:42,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:15:42,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:15:42,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128590130] [2023-11-29 03:15:42,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:15:42,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:15:42,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:42,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:15:42,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:15:42,462 INFO L87 Difference]: Start difference. First operand 360 states and 447 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2023-11-29 03:15:46,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:50,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:53,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:53,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:15:53,990 INFO L93 Difference]: Finished difference Result 302 states and 371 transitions. [2023-11-29 03:15:53,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:15:53,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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 183 [2023-11-29 03:15:53,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:15:53,993 INFO L225 Difference]: With dead ends: 302 [2023-11-29 03:15:53,993 INFO L226 Difference]: Without dead ends: 302 [2023-11-29 03:15:53,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:15:53,994 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 263 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:15:53,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 289 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 53 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2023-11-29 03:15:53,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-11-29 03:15:53,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-11-29 03:15:53,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 286 states have (on average 1.2307692307692308) internal successors, (352), 294 states have internal predecessors, (352), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 03:15:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 371 transitions. [2023-11-29 03:15:54,001 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 371 transitions. Word has length 183 [2023-11-29 03:15:54,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:15:54,001 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 371 transitions. [2023-11-29 03:15:54,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2023-11-29 03:15:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 371 transitions. [2023-11-29 03:15:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 03:15:54,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:15:54,003 INFO L195 NwaCegarLoop]: trace histogram [67, 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] [2023-11-29 03:15:54,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:54,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:54,204 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:15:54,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:15:54,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1050970465, now seen corresponding path program 1 times [2023-11-29 03:15:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:15:54,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284402652] [2023-11-29 03:15:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:15:54,206 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 [2023-11-29 03:15:54,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:15:54,207 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:15:54,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:15:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:15:55,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 03:15:55,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:15:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 03:15:55,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:15:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 03:15:57,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:15:57,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284402652] [2023-11-29 03:15:57,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284402652] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:15:57,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:15:57,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 03:15:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539389713] [2023-11-29 03:15:57,916 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:15:57,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 03:15:57,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:15:57,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 03:15:57,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 03:15:57,919 INFO L87 Difference]: Start difference. First operand 302 states and 371 transitions. Second operand has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 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) [2023-11-29 03:16:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:16:06,978 INFO L93 Difference]: Finished difference Result 351 states and 445 transitions. [2023-11-29 03:16:06,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-29 03:16:06,979 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 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 191 [2023-11-29 03:16:06,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:16:06,981 INFO L225 Difference]: With dead ends: 351 [2023-11-29 03:16:06,982 INFO L226 Difference]: Without dead ends: 351 [2023-11-29 03:16:06,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3563 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-29 03:16:06,988 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 55 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 5080 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:16:06,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 5080 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 03:16:06,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-29 03:16:06,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 327. [2023-11-29 03:16:06,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 311 states have (on average 1.292604501607717) internal successors, (402), 319 states have internal predecessors, (402), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 03:16:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 421 transitions. [2023-11-29 03:16:07,000 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 421 transitions. Word has length 191 [2023-11-29 03:16:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:16:07,000 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 421 transitions. [2023-11-29 03:16:07,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 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) [2023-11-29 03:16:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 421 transitions. [2023-11-29 03:16:07,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-29 03:16:07,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:16:07,009 INFO L195 NwaCegarLoop]: trace histogram [92, 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] [2023-11-29 03:16:07,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:16:07,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:16:07,210 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:16:07,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:16:07,211 INFO L85 PathProgramCache]: Analyzing trace with hash 754326552, now seen corresponding path program 2 times [2023-11-29 03:16:07,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:16:07,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559699930] [2023-11-29 03:16:07,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:16:07,212 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 [2023-11-29 03:16:07,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:16:07,213 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:16:07,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:16:08,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:16:08,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:16:08,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 03:16:08,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:16:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 03:16:10,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:16:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 03:16:17,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:16:17,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559699930] [2023-11-29 03:16:17,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559699930] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:16:17,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:16:17,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 03:16:17,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569702930] [2023-11-29 03:16:17,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:16:17,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 03:16:17,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:16:17,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 03:16:17,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 03:16:17,525 INFO L87 Difference]: Start difference. First operand 327 states and 421 transitions. Second operand has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 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) [2023-11-29 03:17:09,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:17:09,033 INFO L93 Difference]: Finished difference Result 434 states and 581 transitions. [2023-11-29 03:17:09,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 03:17:09,034 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 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 216 [2023-11-29 03:17:09,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:17:09,036 INFO L225 Difference]: With dead ends: 434 [2023-11-29 03:17:09,036 INFO L226 Difference]: Without dead ends: 434 [2023-11-29 03:17:09,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 03:17:09,044 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 164 mSDsluCounter, 9948 mSDsCounter, 0 mSdLazyCounter, 7897 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 10154 SdHoareTripleChecker+Invalid, 7972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 7897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:17:09,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 10154 Invalid, 7972 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [75 Valid, 7897 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-11-29 03:17:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-29 03:17:09,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 381. [2023-11-29 03:17:09,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 365 states have (on average 1.3945205479452054) internal successors, (509), 373 states have internal predecessors, (509), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 03:17:09,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 528 transitions. [2023-11-29 03:17:09,055 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 528 transitions. Word has length 216 [2023-11-29 03:17:09,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:17:09,055 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 528 transitions. [2023-11-29 03:17:09,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 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) [2023-11-29 03:17:09,056 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 528 transitions. [2023-11-29 03:17:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-29 03:17:09,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:17:09,057 INFO L195 NwaCegarLoop]: trace histogram [142, 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] [2023-11-29 03:17:09,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:17:09,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:17:09,258 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:17:09,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:17:09,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1022350840, now seen corresponding path program 3 times [2023-11-29 03:17:09,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:17:09,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173392862] [2023-11-29 03:17:09,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:17:09,260 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 [2023-11-29 03:17:09,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:17:09,261 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:17:09,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:17:10,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:17:10,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:17:10,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:17:10,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:17:10,417 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:17:10,417 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:17:10,418 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 03:17:10,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 03:17:14,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:17:14,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 87 [2023-11-29 03:17:14,973 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:17:14,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 74 [2023-11-29 03:17:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2023-11-29 03:17:15,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:17:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2023-11-29 03:17:15,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:17:15,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173392862] [2023-11-29 03:17:15,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173392862] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:17:15,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:17:15,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-11-29 03:17:15,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379362504] [2023-11-29 03:17:15,738 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:17:15,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:17:15,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:17:15,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:17:15,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:17:15,740 INFO L87 Difference]: Start difference. First operand 381 states and 528 transitions. Second operand has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:17:20,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:17:24,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:17:28,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:17:32,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:17:36,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:17:40,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:17:45,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:17:49,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:17:53,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:17:57,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:18:01,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:18:05,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:18:09,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:18:13,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:18:18,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:18:22,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:18:22,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:22,235 INFO L93 Difference]: Finished difference Result 932 states and 1278 transitions. [2023-11-29 03:18:22,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:18:22,236 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 266 [2023-11-29 03:18:22,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:22,240 INFO L225 Difference]: With dead ends: 932 [2023-11-29 03:18:22,240 INFO L226 Difference]: Without dead ends: 932 [2023-11-29 03:18:22,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 516 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:18:22,241 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 991 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 41 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:22,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1579 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 195 Invalid, 16 Unknown, 0 Unchecked, 66.1s Time] [2023-11-29 03:18:22,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2023-11-29 03:18:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 592. [2023-11-29 03:18:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 572 states have (on average 1.31993006993007) internal successors, (755), 580 states have internal predecessors, (755), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 03:18:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 780 transitions. [2023-11-29 03:18:22,259 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 780 transitions. Word has length 266 [2023-11-29 03:18:22,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:22,259 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 780 transitions. [2023-11-29 03:18:22,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:18:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 780 transitions. [2023-11-29 03:18:22,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2023-11-29 03:18:22,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:22,263 INFO L195 NwaCegarLoop]: trace histogram [142, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:22,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:18:22,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:18:22,464 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:18:22,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:22,465 INFO L85 PathProgramCache]: Analyzing trace with hash 954884550, now seen corresponding path program 1 times [2023-11-29 03:18:22,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:18:22,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595494618] [2023-11-29 03:18:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:22,467 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 [2023-11-29 03:18:22,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:18:22,467 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:18:22,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:18:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:25,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 101 conjunts are in the unsatisfiable core [2023-11-29 03:18:25,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10636 backedges. 4572 proven. 4851 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 03:18:33,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:19:09,762 INFO L134 CoverageAnalysis]: Checked inductivity of 10636 backedges. 4572 proven. 4851 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 03:19:09,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:19:09,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595494618] [2023-11-29 03:19:09,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595494618] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:19:09,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:19:09,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-29 03:19:09,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490946301] [2023-11-29 03:19:09,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:19:09,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-29 03:19:09,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:19:09,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-29 03:19:09,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-29 03:19:09,773 INFO L87 Difference]: Start difference. First operand 592 states and 780 transitions. Second operand has 202 states, 200 states have (on average 1.785) internal successors, (357), 202 states have internal predecessors, (357), 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) [2023-11-29 03:24:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:23,984 INFO L93 Difference]: Finished difference Result 1093 states and 1779 transitions. [2023-11-29 03:24:23,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2023-11-29 03:24:23,985 INFO L78 Accepts]: Start accepts. Automaton has has 202 states, 200 states have (on average 1.785) internal successors, (357), 202 states have internal predecessors, (357), 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 434 [2023-11-29 03:24:23,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:23,994 INFO L225 Difference]: With dead ends: 1093 [2023-11-29 03:24:23,994 INFO L226 Difference]: Without dead ends: 1093 [2023-11-29 03:24:24,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 397 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29006 ImplicationChecksByTransitivity, 284.0s TimeCoverageRelationStatistics Valid=50195, Invalid=108607, Unknown=0, NotChecked=0, Total=158802 [2023-11-29 03:24:24,011 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 166 mSDsluCounter, 20303 mSDsCounter, 0 mSdLazyCounter, 31002 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 20509 SdHoareTripleChecker+Invalid, 31162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 31002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:24,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 20509 Invalid, 31162 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [160 Valid, 31002 Invalid, 0 Unknown, 0 Unchecked, 66.0s Time] [2023-11-29 03:24:24,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2023-11-29 03:24:24,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 692. [2023-11-29 03:24:24,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 672 states have (on average 1.4211309523809523) internal successors, (955), 680 states have internal predecessors, (955), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 03:24:24,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 980 transitions. [2023-11-29 03:24:24,119 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 980 transitions. Word has length 434 [2023-11-29 03:24:24,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:24,120 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 980 transitions. [2023-11-29 03:24:24,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 200 states have (on average 1.785) internal successors, (357), 202 states have internal predecessors, (357), 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) [2023-11-29 03:24:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 980 transitions. [2023-11-29 03:24:24,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-11-29 03:24:24,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:24,126 INFO L195 NwaCegarLoop]: trace histogram [242, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:24,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:24:24,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:24:24,327 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:24:24,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:24,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1971744134, now seen corresponding path program 2 times [2023-11-29 03:24:24,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:24:24,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109107630] [2023-11-29 03:24:24,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:24:24,329 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 [2023-11-29 03:24:24,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:24:24,330 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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) [2023-11-29 03:24:24,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699ab7b4-7d4d-4432-ac20-df49312621b8/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 [2023-11-29 03:24:28,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:24:28,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:24:28,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 201 conjunts are in the unsatisfiable core [2023-11-29 03:24:28,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 29986 backedges. 9072 proven. 19701 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 03:24:57,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:25,758 WARN L293 SmtUtils]: Spent 27.90s 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) [2023-11-29 03:27:17,778 INFO L134 CoverageAnalysis]: Checked inductivity of 29986 backedges. 9072 proven. 19701 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 03:27:17,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:27:17,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109107630] [2023-11-29 03:27:17,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109107630] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:27:17,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:27:17,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [202, 202] total 402 [2023-11-29 03:27:17,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771259947] [2023-11-29 03:27:17,779 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:27:17,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 402 states [2023-11-29 03:27:17,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:27:17,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 402 interpolants. [2023-11-29 03:27:17,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40710, Invalid=120492, Unknown=0, NotChecked=0, Total=161202 [2023-11-29 03:27:17,796 INFO L87 Difference]: Start difference. First operand 692 states and 980 transitions. Second operand has 402 states, 400 states have (on average 1.3925) internal successors, (557), 402 states have internal predecessors, (557), 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)