./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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_1f2db913-5258-4f41-932f-60bdcfae5153/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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:52:58,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:52:58,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 05:52:58,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:52:58,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:52:58,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:52:58,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:52:58,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:52:58,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:52:58,972 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:52:58,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:52:58,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:52:58,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:52:58,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:52:58,975 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:52:58,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:52:58,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:52:58,977 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:52:58,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:52:58,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:52:58,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:52:58,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:52:58,979 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 05:52:58,980 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 05:52:58,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:52:58,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:52:58,981 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:52:58,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:52:58,982 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:52:58,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:52:58,983 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:52:58,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:52:58,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:52:58,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:52:58,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:52:58,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:52:58,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:52:58,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:52:58,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:52:58,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:52:58,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:52:58,986 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:52:58,986 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:52:58,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:52:58,986 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_1f2db913-5258-4f41-932f-60bdcfae5153/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2023-11-29 05:52:59,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:52:59,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:52:59,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:52:59,240 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:52:59,241 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:52:59,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-29 05:53:02,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:53:02,339 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:53:02,339 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-29 05:53:02,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/data/d7cbc3d69/1e843ac82bed41e1a615e5cc5bf6c41d/FLAGf800c1728 [2023-11-29 05:53:02,372 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/data/d7cbc3d69/1e843ac82bed41e1a615e5cc5bf6c41d [2023-11-29 05:53:02,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:53:02,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:53:02,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:02,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:53:02,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:53:02,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:02" (1/1) ... [2023-11-29 05:53:02,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158cb8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:02, skipping insertion in model container [2023-11-29 05:53:02,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:02" (1/1) ... [2023-11-29 05:53:02,452 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:53:02,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:02,897 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 05:53:02,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@71b15c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:02, skipping insertion in model container [2023-11-29 05:53:02,898 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:02,899 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 05:53:02,901 INFO L158 Benchmark]: Toolchain (without parser) took 524.16ms. Allocated memory is still 209.7MB. Free memory was 167.4MB in the beginning and 147.7MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 05:53:02,901 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:53:02,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.03ms. Allocated memory is still 209.7MB. Free memory was 166.6MB in the beginning and 147.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 05:53:02,904 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.03ms. Allocated memory is still 209.7MB. Free memory was 166.6MB in the beginning and 147.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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_1f2db913-5258-4f41-932f-60bdcfae5153/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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:53:04,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:53:04,774 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 05:53:04,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:53:04,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:53:04,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:53:04,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:53:04,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:53:04,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:53:04,810 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:53:04,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:53:04,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:53:04,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:53:04,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:53:04,813 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:53:04,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:53:04,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:53:04,815 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:53:04,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:53:04,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:53:04,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:53:04,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:53:04,818 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 05:53:04,818 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 05:53:04,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:53:04,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:53:04,820 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:53:04,820 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:53:04,821 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:53:04,821 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:53:04,821 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:53:04,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:53:04,822 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:53:04,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:53:04,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:53:04,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:53:04,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:53:04,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:53:04,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:53:04,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:53:04,824 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:53:04,825 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:53:04,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:53:04,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:53:04,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:53:04,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:53:04,825 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:53:04,826 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_1f2db913-5258-4f41-932f-60bdcfae5153/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2023-11-29 05:53:05,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:53:05,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:53:05,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:53:05,114 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:53:05,115 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:53:05,116 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-29 05:53:07,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:53:08,205 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:53:08,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-29 05:53:08,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/data/18b8999b5/dfcc3d9ff2864d4a9b9332abab2ca5b8/FLAGaf60221ff [2023-11-29 05:53:08,234 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/data/18b8999b5/dfcc3d9ff2864d4a9b9332abab2ca5b8 [2023-11-29 05:53:08,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:53:08,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:53:08,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:08,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:53:08,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:53:08,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:08" (1/1) ... [2023-11-29 05:53:08,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2606a569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:08, skipping insertion in model container [2023-11-29 05:53:08,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:53:08" (1/1) ... [2023-11-29 05:53:08,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:53:08,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:08,778 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 05:53:08,793 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:53:08,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:08,882 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:53:08,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:53:09,000 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:53:09,006 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:53:09,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09 WrapperNode [2023-11-29 05:53:09,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:53:09,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:53:09,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:53:09,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:53:09,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,101 INFO L138 Inliner]: procedures = 180, calls = 287, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1032 [2023-11-29 05:53:09,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:53:09,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:53:09,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:53:09,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:53:09,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,199 INFO L175 MemorySlicer]: Split 260 memory accesses to 4 slices as follows [219, 2, 5, 34]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0]. The 55 writes are split as follows [50, 0, 1, 4]. [2023-11-29 05:53:09,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:53:09,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:53:09,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:53:09,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:53:09,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (1/1) ... [2023-11-29 05:53:09,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:53:09,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:09,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:53:09,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:53:09,349 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 05:53:09,349 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 05:53:09,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 05:53:09,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 05:53:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 05:53:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 05:53:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 05:53:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 05:53:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 05:53:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 05:53:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:53:09,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:53:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 05:53:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 05:53:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 05:53:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 05:53:09,351 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 05:53:09,352 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 05:53:09,352 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 05:53:09,352 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 05:53:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 05:53:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:53:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 05:53:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 05:53:09,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 05:53:09,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 05:53:09,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:53:09,353 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 05:53:09,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 05:53:09,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 05:53:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 05:53:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 05:53:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:53:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 05:53:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 05:53:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 05:53:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 05:53:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:53:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 05:53:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 05:53:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 05:53:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:53:09,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:53:09,584 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:53:09,586 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:53:19,086 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:53:19,124 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:53:19,125 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-29 05:53:19,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:19 BoogieIcfgContainer [2023-11-29 05:53:19,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:53:19,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:53:19,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:53:19,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:53:19,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:53:08" (1/3) ... [2023-11-29 05:53:19,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7715c572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:53:19, skipping insertion in model container [2023-11-29 05:53:19,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:53:09" (2/3) ... [2023-11-29 05:53:19,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7715c572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:53:19, skipping insertion in model container [2023-11-29 05:53:19,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:53:19" (3/3) ... [2023-11-29 05:53:19,133 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2023-11-29 05:53:19,149 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:53:19,149 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:53:19,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:53:19,202 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;@646395af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:53:19,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:53:19,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 192 states have (on average 1.6822916666666667) internal successors, (323), 201 states have internal predecessors, (323), 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 05:53:19,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 05:53:19,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:19,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:19,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:19,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:19,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1759675116, now seen corresponding path program 1 times [2023-11-29 05:53:19,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:19,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771954378] [2023-11-29 05:53:19,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:19,234 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 05:53:19,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:19,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:19,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:19,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 05:53:19,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:19,490 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 05:53:19,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:53:19,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:19,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771954378] [2023-11-29 05:53:19,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771954378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:19,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:19,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:53:19,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348724204] [2023-11-29 05:53:19,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:19,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:53:19,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:53:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:53:19,539 INFO L87 Difference]: Start difference. First operand has 208 states, 192 states have (on average 1.6822916666666667) internal successors, (323), 201 states have internal predecessors, (323), 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 4.0) internal successors, (8), 2 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 05:53:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:19,599 INFO L93 Difference]: Finished difference Result 206 states and 271 transitions. [2023-11-29 05:53:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:53:19,602 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 05:53:19,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:19,615 INFO L225 Difference]: With dead ends: 206 [2023-11-29 05:53:19,616 INFO L226 Difference]: Without dead ends: 205 [2023-11-29 05:53:19,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 05:53:19,621 INFO L413 NwaCegarLoop]: 267 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, 267 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 05:53:19,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:53:19,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-29 05:53:19,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-11-29 05:53:19,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 191 states have (on average 1.3193717277486912) internal successors, (252), 198 states have internal predecessors, (252), 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 05:53:19,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2023-11-29 05:53:19,682 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 8 [2023-11-29 05:53:19,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:19,682 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2023-11-29 05:53:19,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 05:53:19,683 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2023-11-29 05:53:19,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 05:53:19,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:19,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:19,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:19,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:19,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:19,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:19,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1371810801, now seen corresponding path program 1 times [2023-11-29 05:53:19,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:19,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178234830] [2023-11-29 05:53:19,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:19,887 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 05:53:19,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:19,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:19,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:20,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:53:20,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:20,177 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:53:20,178 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:53:20,179 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:53:20,191 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 05:53:20,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:53:20,297 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 05:53:20,337 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 05:53:20,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:53:20,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:20,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178234830] [2023-11-29 05:53:20,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178234830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:20,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:20,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:20,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522901097] [2023-11-29 05:53:20,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:20,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:20,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:20,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:20,342 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 05:53:21,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:21,127 INFO L93 Difference]: Finished difference Result 395 states and 526 transitions. [2023-11-29 05:53:21,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:21,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-11-29 05:53:21,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:21,132 INFO L225 Difference]: With dead ends: 395 [2023-11-29 05:53:21,132 INFO L226 Difference]: Without dead ends: 395 [2023-11-29 05:53:21,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 05:53:21,134 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 236 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:21,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 737 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:53:21,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-11-29 05:53:21,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 207. [2023-11-29 05:53:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 193 states have (on average 1.3160621761658031) internal successors, (254), 200 states have internal predecessors, (254), 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 05:53:21,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 272 transitions. [2023-11-29 05:53:21,158 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 272 transitions. Word has length 10 [2023-11-29 05:53:21,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:21,159 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 272 transitions. [2023-11-29 05:53:21,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 05:53:21,159 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 272 transitions. [2023-11-29 05:53:21,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 05:53:21,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:21,162 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, 1, 1] [2023-11-29 05:53:21,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:21,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:21,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:21,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:21,367 INFO L85 PathProgramCache]: Analyzing trace with hash 389025315, now seen corresponding path program 1 times [2023-11-29 05:53:21,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:21,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110328723] [2023-11-29 05:53:21,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:21,369 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 05:53:21,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:21,370 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:21,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:21,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:53:21,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:21,858 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 05:53:21,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:53:21,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:21,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110328723] [2023-11-29 05:53:21,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110328723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:21,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:21,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:21,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843379010] [2023-11-29 05:53:21,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:21,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:21,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:21,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:21,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:21,861 INFO L87 Difference]: Start difference. First operand 207 states and 272 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 05:53:22,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:22,001 INFO L93 Difference]: Finished difference Result 211 states and 268 transitions. [2023-11-29 05:53:22,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:22,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2023-11-29 05:53:22,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:22,004 INFO L225 Difference]: With dead ends: 211 [2023-11-29 05:53:22,004 INFO L226 Difference]: Without dead ends: 211 [2023-11-29 05:53:22,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 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 05:53:22,006 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 36 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 690 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 05:53:22,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 690 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:22,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-29 05:53:22,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 210. [2023-11-29 05:53:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 196 states have (on average 1.2704081632653061) internal successors, (249), 203 states have internal predecessors, (249), 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 05:53:22,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 267 transitions. [2023-11-29 05:53:22,020 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 267 transitions. Word has length 66 [2023-11-29 05:53:22,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:22,021 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 267 transitions. [2023-11-29 05:53:22,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 05:53:22,021 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 267 transitions. [2023-11-29 05:53:22,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 05:53:22,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:22,024 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, 1, 1] [2023-11-29 05:53:22,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:22,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:22,225 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:22,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:22,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2053103593, now seen corresponding path program 1 times [2023-11-29 05:53:22,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:22,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246929156] [2023-11-29 05:53:22,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:22,227 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 05:53:22,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:22,228 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:22,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:22,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:53:22,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:23,015 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 05:53:23,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:53:23,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:23,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246929156] [2023-11-29 05:53:23,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246929156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:23,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:23,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:53:23,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312914928] [2023-11-29 05:53:23,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:23,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:53:23,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:23,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:53:23,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:53:23,019 INFO L87 Difference]: Start difference. First operand 210 states and 267 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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 05:53:23,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:23,922 INFO L93 Difference]: Finished difference Result 336 states and 429 transitions. [2023-11-29 05:53:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:53:23,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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 66 [2023-11-29 05:53:23,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:23,926 INFO L225 Difference]: With dead ends: 336 [2023-11-29 05:53:23,926 INFO L226 Difference]: Without dead ends: 336 [2023-11-29 05:53:23,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 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 05:53:23,927 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 113 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:23,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 548 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 05:53:23,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-29 05:53:23,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 318. [2023-11-29 05:53:23,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 304 states have (on average 1.2598684210526316) internal successors, (383), 311 states have internal predecessors, (383), 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 05:53:23,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 401 transitions. [2023-11-29 05:53:23,945 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 401 transitions. Word has length 66 [2023-11-29 05:53:23,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:23,945 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 401 transitions. [2023-11-29 05:53:23,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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 05:53:23,946 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 401 transitions. [2023-11-29 05:53:23,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 05:53:23,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:23,949 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:23,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:24,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:24,150 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:24,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:24,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1085858766, now seen corresponding path program 1 times [2023-11-29 05:53:24,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:24,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126742162] [2023-11-29 05:53:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:24,152 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 05:53:24,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:24,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:24,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:24,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:53:24,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:24,698 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 05:53:24,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:53:24,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:24,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126742162] [2023-11-29 05:53:24,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126742162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:24,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:24,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:24,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794610347] [2023-11-29 05:53:24,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:24,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:24,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:24,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:24,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:24,702 INFO L87 Difference]: Start difference. First operand 318 states and 401 transitions. Second operand has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 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 05:53:24,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:24,769 INFO L93 Difference]: Finished difference Result 320 states and 404 transitions. [2023-11-29 05:53:24,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:24,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 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 79 [2023-11-29 05:53:24,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:24,771 INFO L225 Difference]: With dead ends: 320 [2023-11-29 05:53:24,771 INFO L226 Difference]: Without dead ends: 320 [2023-11-29 05:53:24,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 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 05:53:24,772 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 758 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 05:53:24,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 758 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:24,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-29 05:53:24,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2023-11-29 05:53:24,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 305 states have (on average 1.2622950819672132) internal successors, (385), 313 states have internal predecessors, (385), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 05:53:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 404 transitions. [2023-11-29 05:53:24,784 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 404 transitions. Word has length 79 [2023-11-29 05:53:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:24,785 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 404 transitions. [2023-11-29 05:53:24,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 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 05:53:24,785 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 404 transitions. [2023-11-29 05:53:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 05:53:24,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:24,788 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, 1, 1] [2023-11-29 05:53:24,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:24,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:24,996 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:24,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:24,996 INFO L85 PathProgramCache]: Analyzing trace with hash -909333780, now seen corresponding path program 1 times [2023-11-29 05:53:24,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:24,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789312202] [2023-11-29 05:53:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:24,997 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 05:53:24,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:24,998 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:24,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:25,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:53:25,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:25,572 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 05:53:25,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:53:25,689 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 05:53:25,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:25,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789312202] [2023-11-29 05:53:25,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789312202] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:53:25,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:53:25,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:53:25,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301299296] [2023-11-29 05:53:25,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:53:25,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:53:25,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:25,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:53:25,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:53:25,692 INFO L87 Difference]: Start difference. First operand 320 states and 404 transitions. Second operand has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 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 05:53:25,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:25,948 INFO L93 Difference]: Finished difference Result 329 states and 418 transitions. [2023-11-29 05:53:25,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:53:25,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 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 81 [2023-11-29 05:53:25,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:25,953 INFO L225 Difference]: With dead ends: 329 [2023-11-29 05:53:25,953 INFO L226 Difference]: Without dead ends: 329 [2023-11-29 05:53:25,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:53:25,954 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 7 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:25,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1008 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:53:25,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-29 05:53:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 328. [2023-11-29 05:53:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 312 states have (on average 1.2756410256410255) internal successors, (398), 320 states have internal predecessors, (398), 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 05:53:25,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 417 transitions. [2023-11-29 05:53:25,967 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 417 transitions. Word has length 81 [2023-11-29 05:53:25,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:25,967 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 417 transitions. [2023-11-29 05:53:25,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 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 05:53:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 417 transitions. [2023-11-29 05:53:25,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 05:53:25,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:25,969 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] [2023-11-29 05:53:25,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:26,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:26,171 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:26,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:26,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2096321618, now seen corresponding path program 2 times [2023-11-29 05:53:26,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:26,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124247278] [2023-11-29 05:53:26,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:53:26,173 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 05:53:26,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:26,174 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:26,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:26,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 05:53:26,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:53:26,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:53:26,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:26,472 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:53:26,473 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:53:26,473 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:53:26,476 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 05:53:26,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:53:26,529 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 05:53:26,543 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 05:53:26,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:53:26,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:26,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124247278] [2023-11-29 05:53:26,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124247278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:26,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:26,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:26,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929984714] [2023-11-29 05:53:26,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:26,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:26,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:26,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:26,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:26,546 INFO L87 Difference]: Start difference. First operand 328 states and 417 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 05:53:27,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:27,072 INFO L93 Difference]: Finished difference Result 488 states and 628 transitions. [2023-11-29 05:53:27,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:27,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 85 [2023-11-29 05:53:27,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:27,077 INFO L225 Difference]: With dead ends: 488 [2023-11-29 05:53:27,077 INFO L226 Difference]: Without dead ends: 488 [2023-11-29 05:53:27,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 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 05:53:27,078 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 207 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:27,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 705 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:53:27,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-11-29 05:53:27,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 330. [2023-11-29 05:53:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 314 states have (on average 1.2738853503184713) internal successors, (400), 322 states have internal predecessors, (400), 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 05:53:27,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 419 transitions. [2023-11-29 05:53:27,089 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 419 transitions. Word has length 85 [2023-11-29 05:53:27,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:27,089 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 419 transitions. [2023-11-29 05:53:27,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 05:53:27,090 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 419 transitions. [2023-11-29 05:53:27,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 05:53:27,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:27,091 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 05:53:27,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 05:53:27,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:27,292 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:27,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:27,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1305677860, now seen corresponding path program 1 times [2023-11-29 05:53:27,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:27,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615745212] [2023-11-29 05:53:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:27,293 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 05:53:27,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:27,294 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:27,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:27,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:53:27,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:27,875 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 05:53:27,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:53:28,072 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 05:53:28,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:28,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615745212] [2023-11-29 05:53:28,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615745212] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:53:28,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:53:28,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 05:53:28,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151177876] [2023-11-29 05:53:28,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:53:28,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:53:28,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:28,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:53:28,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:53:28,075 INFO L87 Difference]: Start difference. First operand 330 states and 419 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 05:53:28,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:28,781 INFO L93 Difference]: Finished difference Result 345 states and 441 transitions. [2023-11-29 05:53:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 05:53:28,782 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 05:53:28,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:28,785 INFO L225 Difference]: With dead ends: 345 [2023-11-29 05:53:28,785 INFO L226 Difference]: Without dead ends: 343 [2023-11-29 05:53:28,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 05:53:28,786 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 12 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:28,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1762 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:53:28,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-29 05:53:28,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 339. [2023-11-29 05:53:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 323 states have (on average 1.2755417956656347) internal successors, (412), 331 states have internal predecessors, (412), 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 05:53:28,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 431 transitions. [2023-11-29 05:53:28,806 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 431 transitions. Word has length 122 [2023-11-29 05:53:28,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:28,806 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 431 transitions. [2023-11-29 05:53:28,807 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 05:53:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 431 transitions. [2023-11-29 05:53:28,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 05:53:28,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:28,809 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 05:53:28,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:29,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:29,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:29,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:29,010 INFO L85 PathProgramCache]: Analyzing trace with hash 957965469, now seen corresponding path program 2 times [2023-11-29 05:53:29,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:29,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453566090] [2023-11-29 05:53:29,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:53:29,011 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 05:53:29,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:29,012 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:29,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:29,301 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 05:53:29,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:53:29,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:53:29,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:29,329 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 05:53:29,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:53:29,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:29,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453566090] [2023-11-29 05:53:29,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453566090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:29,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:29,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:29,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20767486] [2023-11-29 05:53:29,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:29,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:29,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:29,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:29,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:29,332 INFO L87 Difference]: Start difference. First operand 339 states and 431 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 05:53:29,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:29,471 INFO L93 Difference]: Finished difference Result 347 states and 423 transitions. [2023-11-29 05:53:29,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:29,472 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 05:53:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:29,475 INFO L225 Difference]: With dead ends: 347 [2023-11-29 05:53:29,475 INFO L226 Difference]: Without dead ends: 347 [2023-11-29 05:53:29,476 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 05:53:29,476 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 36 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 657 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 05:53:29,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 657 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:53:29,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-29 05:53:29,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 345. [2023-11-29 05:53:29,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 329 states have (on average 1.221884498480243) internal successors, (402), 337 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 05:53:29,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 421 transitions. [2023-11-29 05:53:29,490 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 421 transitions. Word has length 131 [2023-11-29 05:53:29,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:29,490 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 421 transitions. [2023-11-29 05:53:29,491 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 05:53:29,491 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 421 transitions. [2023-11-29 05:53:29,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 05:53:29,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:29,493 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 05:53:29,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:29,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:29,693 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:29,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:29,694 INFO L85 PathProgramCache]: Analyzing trace with hash 2055767953, now seen corresponding path program 1 times [2023-11-29 05:53:29,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:29,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474558553] [2023-11-29 05:53:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:29,695 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 05:53:29,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:29,695 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:29,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:30,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:53:30,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:30,464 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 05:53:30,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:53:31,122 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 05:53:31,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:31,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474558553] [2023-11-29 05:53:31,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474558553] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:53:31,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:53:31,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 05:53:31,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723611916] [2023-11-29 05:53:31,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:53:31,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 05:53:31,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:31,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 05:53:31,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:53:31,130 INFO L87 Difference]: Start difference. First operand 345 states and 421 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 05:53:33,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:33,791 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2023-11-29 05:53:33,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 05:53:33,792 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 05:53:33,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:33,794 INFO L225 Difference]: With dead ends: 375 [2023-11-29 05:53:33,794 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 05:53:33,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 05:53:33,797 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 25 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:33,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3124 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 05:53:33,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 05:53:33,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 363. [2023-11-29 05:53:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 347 states have (on average 1.2276657060518732) internal successors, (426), 355 states have internal predecessors, (426), 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 05:53:33,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 445 transitions. [2023-11-29 05:53:33,808 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 445 transitions. Word has length 131 [2023-11-29 05:53:33,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:33,808 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 445 transitions. [2023-11-29 05:53:33,808 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 05:53:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 445 transitions. [2023-11-29 05:53:33,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 05:53:33,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:33,810 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 05:53:33,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:34,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:34,010 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:34,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:34,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2028865521, now seen corresponding path program 2 times [2023-11-29 05:53:34,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:34,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155466853] [2023-11-29 05:53:34,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:53:34,012 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 05:53:34,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:34,013 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:34,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:34,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:53:34,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:53:34,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 05:53:34,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:35,394 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 05:53:35,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:53:37,614 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 05:53:37,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:37,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155466853] [2023-11-29 05:53:37,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155466853] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:53:37,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:53:37,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 05:53:37,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716198779] [2023-11-29 05:53:37,615 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:53:37,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 05:53:37,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:37,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 05:53:37,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 05:53:37,619 INFO L87 Difference]: Start difference. First operand 363 states and 445 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 05:53:48,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:48,278 INFO L93 Difference]: Finished difference Result 421 states and 535 transitions. [2023-11-29 05:53:48,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 05:53:48,279 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 05:53:48,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:48,281 INFO L225 Difference]: With dead ends: 421 [2023-11-29 05:53:48,281 INFO L226 Difference]: Without dead ends: 419 [2023-11-29 05:53:48,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 05:53:48,285 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 48 mSDsluCounter, 6000 mSDsCounter, 0 mSdLazyCounter, 2530 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6243 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:48,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6243 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2530 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 05:53:48,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-29 05:53:48,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 397. [2023-11-29 05:53:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.2388451443569555) internal successors, (472), 389 states have internal predecessors, (472), 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 05:53:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 491 transitions. [2023-11-29 05:53:48,295 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 491 transitions. Word has length 149 [2023-11-29 05:53:48,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:48,296 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 491 transitions. [2023-11-29 05:53:48,296 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 05:53:48,296 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 491 transitions. [2023-11-29 05:53:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-29 05:53:48,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:48,298 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 05:53:48,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:48,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:48,498 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:48,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:48,499 INFO L85 PathProgramCache]: Analyzing trace with hash -294328559, now seen corresponding path program 3 times [2023-11-29 05:53:48,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:48,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806903006] [2023-11-29 05:53:48,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:53:48,500 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 05:53:48,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:48,501 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:48,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:53:49,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:53:49,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:53:49,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:53:49,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:49,373 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 05:53:49,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:53:49,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:49,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806903006] [2023-11-29 05:53:49,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806903006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:49,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:49,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:49,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285214183] [2023-11-29 05:53:49,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:49,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:49,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:49,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:49,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:49,376 INFO L87 Difference]: Start difference. First operand 397 states and 491 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 05:53:53,724 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 05:53:57,730 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 05:54:00,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:00,062 INFO L93 Difference]: Finished difference Result 513 states and 646 transitions. [2023-11-29 05:54:00,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:54:00,063 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 05:54:00,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:00,066 INFO L225 Difference]: With dead ends: 513 [2023-11-29 05:54:00,066 INFO L226 Difference]: Without dead ends: 513 [2023-11-29 05:54:00,066 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 05:54:00,067 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 434 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:00,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 492 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2023-11-29 05:54:00,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-11-29 05:54:00,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 485. [2023-11-29 05:54:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 469 states have (on average 1.2345415778251598) internal successors, (579), 477 states have internal predecessors, (579), 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 05:54:00,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 598 transitions. [2023-11-29 05:54:00,082 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 598 transitions. Word has length 183 [2023-11-29 05:54:00,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:00,083 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 598 transitions. [2023-11-29 05:54:00,083 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 05:54:00,083 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 598 transitions. [2023-11-29 05:54:00,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 05:54:00,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:00,086 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 05:54:00,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:54:00,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:54:00,286 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:54:00,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:00,287 INFO L85 PathProgramCache]: Analyzing trace with hash -365948709, now seen corresponding path program 1 times [2023-11-29 05:54:00,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:54:00,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756077919] [2023-11-29 05:54:00,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:54:00,289 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 05:54:00,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:54:00,289 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:54:00,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:54:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:54:01,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 05:54:01,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:02,385 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 05:54:02,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:04,836 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 05:54:04,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:54:04,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756077919] [2023-11-29 05:54:04,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756077919] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:04,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:54:04,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 05:54:04,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426188962] [2023-11-29 05:54:04,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:04,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 05:54:04,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:54:04,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 05:54:04,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 05:54:04,840 INFO L87 Difference]: Start difference. First operand 485 states and 598 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 05:54:15,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:54:15,843 INFO L93 Difference]: Finished difference Result 534 states and 672 transitions. [2023-11-29 05:54:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-29 05:54:15,843 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 05:54:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:54:15,846 INFO L225 Difference]: With dead ends: 534 [2023-11-29 05:54:15,846 INFO L226 Difference]: Without dead ends: 534 [2023-11-29 05:54:15,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3565 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-29 05:54:15,850 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 55 mSDsluCounter, 5738 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 5980 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:54:15,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 5980 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 05:54:15,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-11-29 05:54:15,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 510. [2023-11-29 05:54:15,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 494 states have (on average 1.2732793522267207) internal successors, (629), 502 states have internal predecessors, (629), 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 05:54:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 648 transitions. [2023-11-29 05:54:15,861 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 648 transitions. Word has length 191 [2023-11-29 05:54:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:54:15,862 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 648 transitions. [2023-11-29 05:54:15,862 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 05:54:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 648 transitions. [2023-11-29 05:54:15,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-29 05:54:15,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:54:15,863 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 05:54:15,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:54:16,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:54:16,064 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:54:16,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:54:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1416196418, now seen corresponding path program 2 times [2023-11-29 05:54:16,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:54:16,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555263169] [2023-11-29 05:54:16,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:54:16,066 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 05:54:16,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:54:16,066 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:54:16,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:54:18,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:54:18,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:54:18,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 05:54:18,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:20,516 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 05:54:20,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:29,302 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 05:54:29,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:54:29,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555263169] [2023-11-29 05:54:29,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555263169] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:54:29,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:54:29,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 05:54:29,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230638974] [2023-11-29 05:54:29,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:29,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 05:54:29,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:54:29,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 05:54:29,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 05:54:29,308 INFO L87 Difference]: Start difference. First operand 510 states and 648 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 05:55:23,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:23,293 INFO L93 Difference]: Finished difference Result 617 states and 808 transitions. [2023-11-29 05:55:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 05:55:23,294 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 05:55:23,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:23,298 INFO L225 Difference]: With dead ends: 617 [2023-11-29 05:55:23,298 INFO L226 Difference]: Without dead ends: 617 [2023-11-29 05:55:23,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 49.1s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 05:55:23,305 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 115 mSDsluCounter, 11953 mSDsCounter, 0 mSdLazyCounter, 8002 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 12195 SdHoareTripleChecker+Invalid, 8062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 8002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:23,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 12195 Invalid, 8062 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 8002 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2023-11-29 05:55:23,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2023-11-29 05:55:23,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 564. [2023-11-29 05:55:23,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 548 states have (on average 1.3430656934306568) internal successors, (736), 556 states have internal predecessors, (736), 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 05:55:23,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 755 transitions. [2023-11-29 05:55:23,321 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 755 transitions. Word has length 216 [2023-11-29 05:55:23,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:23,322 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 755 transitions. [2023-11-29 05:55:23,322 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 05:55:23,322 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 755 transitions. [2023-11-29 05:55:23,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-29 05:55:23,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:23,324 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 05:55:23,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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)] Forceful destruction successful, exit code 0 [2023-11-29 05:55:23,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:55:23,524 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:55:23,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:23,525 INFO L85 PathProgramCache]: Analyzing trace with hash -871965854, now seen corresponding path program 3 times [2023-11-29 05:55:23,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:55:23,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466921860] [2023-11-29 05:55:23,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:55:23,526 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 05:55:23,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:55:23,527 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:55:23,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:55:24,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:55:24,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:55:25,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:55:25,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:55:25,023 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:55:25,024 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:55:25,024 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:55:25,026 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 05:55:30,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:55:30,089 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 05:55:30,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:55:30,277 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 05:55:30,314 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 05:55:30,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:55:31,186 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 05:55:31,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:55:31,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466921860] [2023-11-29 05:55:31,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466921860] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:55:31,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:55:31,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-11-29 05:55:31,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688519150] [2023-11-29 05:55:31,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:55:31,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:55:31,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:55:31,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:55:31,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:55:31,188 INFO L87 Difference]: Start difference. First operand 564 states and 755 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 05:55:35,671 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 05:55:39,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:55:44,254 WARN L539 Checker$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 05:55:48,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:55:52,502 WARN L539 Checker$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 05:55:56,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:56:00,539 WARN L539 Checker$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 05:56:04,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:56:08,799 WARN L539 Checker$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 05:56:12,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:56:17,036 WARN L539 Checker$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 05:56:21,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:56:25,186 WARN L539 Checker$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 05:56:29,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:56:34,062 WARN L539 Checker$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 05:56:38,163 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 05:56:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:56:38,269 INFO L93 Difference]: Finished difference Result 1327 states and 1763 transitions. [2023-11-29 05:56:38,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:56:38,270 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 05:56:38,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:56:38,276 INFO L225 Difference]: With dead ends: 1327 [2023-11-29 05:56:38,276 INFO L226 Difference]: Without dead ends: 1327 [2023-11-29 05:56:38,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 516 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:56:38,277 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1385 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 40 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:56:38,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 2505 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 242 Invalid, 16 Unknown, 0 Unchecked, 66.7s Time] [2023-11-29 05:56:38,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2023-11-29 05:56:38,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 775. [2023-11-29 05:56:38,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 755 states have (on average 1.3006622516556292) internal successors, (982), 763 states have internal predecessors, (982), 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 05:56:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1007 transitions. [2023-11-29 05:56:38,293 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1007 transitions. Word has length 266 [2023-11-29 05:56:38,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:56:38,293 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 1007 transitions. [2023-11-29 05:56:38,294 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 05:56:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1007 transitions. [2023-11-29 05:56:38,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2023-11-29 05:56:38,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:56:38,297 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 05:56:38,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:56:38,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:56:38,497 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:56:38,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:56:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash -66456784, now seen corresponding path program 1 times [2023-11-29 05:56:38,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:56:38,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700499306] [2023-11-29 05:56:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:56:38,500 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 05:56:38,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:56:38,500 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:56:38,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 05:56:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:56:41,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 101 conjunts are in the unsatisfiable core [2023-11-29 05:56:41,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:56:49,797 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 05:56:49,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:57:24,239 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 05:57:24,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:57:24,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700499306] [2023-11-29 05:57:24,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700499306] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:57:24,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:57:24,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-29 05:57:24,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055560315] [2023-11-29 05:57:24,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:57:24,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-29 05:57:24,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:57:24,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-29 05:57:24,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-29 05:57:24,249 INFO L87 Difference]: Start difference. First operand 775 states and 1007 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 06:03:04,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:04,485 INFO L93 Difference]: Finished difference Result 1276 states and 2006 transitions. [2023-11-29 06:03:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2023-11-29 06:03:04,486 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 06:03:04,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:04,491 INFO L225 Difference]: With dead ends: 1276 [2023-11-29 06:03:04,491 INFO L226 Difference]: Without dead ends: 1276 [2023-11-29 06:03:04,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 397 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29008 ImplicationChecksByTransitivity, 306.0s TimeCoverageRelationStatistics Valid=50195, Invalid=108607, Unknown=0, NotChecked=0, Total=158802 [2023-11-29 06:03:04,500 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 166 mSDsluCounter, 24623 mSDsCounter, 0 mSdLazyCounter, 31320 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 24865 SdHoareTripleChecker+Invalid, 31434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 31320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:04,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 24865 Invalid, 31434 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [114 Valid, 31320 Invalid, 0 Unknown, 0 Unchecked, 68.4s Time] [2023-11-29 06:03:04,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2023-11-29 06:03:04,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 875. [2023-11-29 06:03:04,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 855 states have (on average 1.3824561403508773) internal successors, (1182), 863 states have internal predecessors, (1182), 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 06:03:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1207 transitions. [2023-11-29 06:03:04,604 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1207 transitions. Word has length 434 [2023-11-29 06:03:04,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:04,605 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1207 transitions. [2023-11-29 06:03:04,605 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 06:03:04,606 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1207 transitions. [2023-11-29 06:03:04,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-11-29 06:03:04,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:04,612 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 06:03:04,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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)] Ended with exit code 0 [2023-11-29 06:03:04,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 06:03:04,813 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:03:04,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:04,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1027526800, now seen corresponding path program 2 times [2023-11-29 06:03:04,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:04,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359763787] [2023-11-29 06:03:04,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:04,818 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 06:03:04,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:04,819 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 06:03:04,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2db913-5258-4f41-932f-60bdcfae5153/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 06:03:09,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:03:09,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:09,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 201 conjunts are in the unsatisfiable core [2023-11-29 06:03:09,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:42,322 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 06:03:42,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:04:17,435 WARN L293 SmtUtils]: Spent 35.07s 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 06:06:22,898 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 06:06:22,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:06:22,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359763787] [2023-11-29 06:06:22,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359763787] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:06:22,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:06:22,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [202, 202] total 402 [2023-11-29 06:06:22,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487529765] [2023-11-29 06:06:22,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:06:22,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 402 states [2023-11-29 06:06:22,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:06:22,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 402 interpolants. [2023-11-29 06:06:22,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40710, Invalid=120492, Unknown=0, NotChecked=0, Total=161202 [2023-11-29 06:06:22,914 INFO L87 Difference]: Start difference. First operand 875 states and 1207 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)