./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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_509adaee-0317-45ce-8a01-41d0fa323358/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 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:37:00,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:37:00,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 05:37:00,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:37:00,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:37:00,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:37:00,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:37:00,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:37:00,258 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:37:00,258 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:37:00,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:37:00,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:37:00,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:37:00,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:37:00,261 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:37:00,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:37:00,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:37:00,263 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:37:00,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:37:00,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:37:00,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:37:00,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:37:00,266 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 05:37:00,266 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 05:37:00,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:37:00,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:37:00,268 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:37:00,268 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:37:00,268 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:37:00,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:37:00,269 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:37:00,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:37:00,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:37:00,270 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:37:00,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:37:00,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:37:00,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:37:00,271 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:37:00,271 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:37:00,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:37:00,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:37:00,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:37:00,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:37:00,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:37:00,273 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_509adaee-0317-45ce-8a01-41d0fa323358/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2023-11-29 05:37:00,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:37:00,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:37:00,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:37:00,596 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:37:00,596 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:37:00,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2023-11-29 05:37:03,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:37:04,139 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:37:04,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2023-11-29 05:37:04,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/data/da949e61f/09267432344b441eb891fd3b9f967963/FLAG1c127ff11 [2023-11-29 05:37:04,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/data/da949e61f/09267432344b441eb891fd3b9f967963 [2023-11-29 05:37:04,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:37:04,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:37:04,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:37:04,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:37:04,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:37:04,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:37:04" (1/1) ... [2023-11-29 05:37:04,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bc766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:04, skipping insertion in model container [2023-11-29 05:37:04,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:37:04" (1/1) ... [2023-11-29 05:37:04,249 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:37:04,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:37:04,840 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 05:37:04,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69e80b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:04, skipping insertion in model container [2023-11-29 05:37:04,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:37:04,842 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 05:37:04,843 INFO L158 Benchmark]: Toolchain (without parser) took 666.00ms. Allocated memory is still 167.8MB. Free memory was 132.9MB in the beginning and 110.6MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 05:37:04,844 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:37:04,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 663.59ms. Allocated memory is still 167.8MB. Free memory was 132.3MB in the beginning and 110.6MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 05:37:04,846 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 663.59ms. Allocated memory is still 167.8MB. Free memory was 132.3MB in the beginning and 110.6MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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_509adaee-0317-45ce-8a01-41d0fa323358/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 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:37:06,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:37:06,903 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 05:37:06,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:37:06,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:37:06,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:37:06,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:37:06,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:37:06,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:37:06,950 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:37:06,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:37:06,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:37:06,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:37:06,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:37:06,954 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:37:06,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:37:06,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:37:06,955 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:37:06,956 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:37:06,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:37:06,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:37:06,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:37:06,958 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 05:37:06,959 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 05:37:06,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:37:06,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:37:06,960 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:37:06,961 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:37:06,961 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:37:06,961 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:37:06,962 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:37:06,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:37:06,962 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:37:06,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:37:06,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:37:06,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:37:06,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:37:06,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:37:06,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:37:06,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:37:06,965 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:37:06,965 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:37:06,965 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:37:06,965 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:37:06,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:37:06,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:37:06,966 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:37:06,966 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_509adaee-0317-45ce-8a01-41d0fa323358/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2023-11-29 05:37:07,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:37:07,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:37:07,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:37:07,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:37:07,328 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:37:07,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2023-11-29 05:37:10,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:37:10,819 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:37:10,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2023-11-29 05:37:10,840 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/data/04795f0c4/308d671563444a6a972e77ae228acab3/FLAGe530fe3c0 [2023-11-29 05:37:10,858 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/data/04795f0c4/308d671563444a6a972e77ae228acab3 [2023-11-29 05:37:10,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:37:10,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:37:10,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:37:10,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:37:10,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:37:10,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:37:10" (1/1) ... [2023-11-29 05:37:10,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336e756e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:10, skipping insertion in model container [2023-11-29 05:37:10,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:37:10" (1/1) ... [2023-11-29 05:37:10,949 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:37:11,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:37:11,541 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 05:37:11,563 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:37:11,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:37:11,658 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:37:11,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:37:11,805 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:37:11,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11 WrapperNode [2023-11-29 05:37:11,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:37:11,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:37:11,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:37:11,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:37:11,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:11,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:11,926 INFO L138 Inliner]: procedures = 180, calls = 439, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1422 [2023-11-29 05:37:11,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:37:11,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:37:11,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:37:11,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:37:11,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:11,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:11,953 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:12,152 INFO L175 MemorySlicer]: Split 413 memory accesses to 4 slices as follows [2, 401, 5, 5]. 97 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 100 writes are split as follows [0, 98, 1, 1]. [2023-11-29 05:37:12,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:12,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:12,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:12,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:12,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:12,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:12,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:37:12,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:37:12,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:37:12,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:37:12,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (1/1) ... [2023-11-29 05:37:12,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:37:12,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:37:12,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:37:12,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:37:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 05:37:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 05:37:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 05:37:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 05:37:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 05:37:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 05:37:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 05:37:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 05:37:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 05:37:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 05:37:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 05:37:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 05:37:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 05:37:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 05:37:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 05:37:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 05:37:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 05:37:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:37:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:37:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 05:37:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 05:37:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 05:37:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 05:37:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 05:37:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 05:37:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 05:37:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 05:37:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:37:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 05:37:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 05:37:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 05:37:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 05:37:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:37:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 05:37:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 05:37:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 05:37:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:37:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:37:12,652 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:37:12,655 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:37:27,152 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:37:27,204 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:37:27,204 INFO L309 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-29 05:37:27,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:37:27 BoogieIcfgContainer [2023-11-29 05:37:27,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:37:27,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:37:27,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:37:27,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:37:27,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:37:10" (1/3) ... [2023-11-29 05:37:27,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554f25d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:37:27, skipping insertion in model container [2023-11-29 05:37:27,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:37:11" (2/3) ... [2023-11-29 05:37:27,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554f25d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:37:27, skipping insertion in model container [2023-11-29 05:37:27,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:37:27" (3/3) ... [2023-11-29 05:37:27,212 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-3.i [2023-11-29 05:37:27,227 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:37:27,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:37:27,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:37:27,276 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;@5f748ba9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:37:27,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:37:27,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 236 states have (on average 1.6694915254237288) internal successors, (394), 238 states have internal predecessors, (394), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:37:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 05:37:27,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:37:27,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 05:37:27,298 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:37:27,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:37:27,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1039095, now seen corresponding path program 1 times [2023-11-29 05:37:27,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:37:27,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540844334] [2023-11-29 05:37:27,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:37:27,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:37:27,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:37:27,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:27,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:37:27,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:37:27,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:37:27,564 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 05:37:27,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:37:27,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:37:27,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540844334] [2023-11-29 05:37:27,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540844334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:37:27,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:37:27,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:37:27,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411782001] [2023-11-29 05:37:27,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:37:27,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:37:27,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:37:27,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:37:27,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:37:27,602 INFO L87 Difference]: Start difference. First operand has 246 states, 236 states have (on average 1.6694915254237288) internal successors, (394), 238 states have internal predecessors, (394), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 05:37:31,718 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 [] [2023-11-29 05:37:35,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:37:37,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:37:38,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:37:38,324 INFO L93 Difference]: Finished difference Result 308 states and 403 transitions. [2023-11-29 05:37:38,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:37:38,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-29 05:37:38,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:37:38,340 INFO L225 Difference]: With dead ends: 308 [2023-11-29 05:37:38,340 INFO L226 Difference]: Without dead ends: 305 [2023-11-29 05:37:38,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:37:38,345 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 81 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:37:38,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 642 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2023-11-29 05:37:38,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-29 05:37:38,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 255. [2023-11-29 05:37:38,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 246 states have (on average 1.3048780487804879) internal successors, (321), 247 states have internal predecessors, (321), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:37:38,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 333 transitions. [2023-11-29 05:37:38,421 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 333 transitions. Word has length 3 [2023-11-29 05:37:38,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:37:38,421 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 333 transitions. [2023-11-29 05:37:38,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 05:37:38,422 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 333 transitions. [2023-11-29 05:37:38,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 05:37:38,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:37:38,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:37:38,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:38,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:38,624 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:37:38,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:37:38,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1036485316, now seen corresponding path program 1 times [2023-11-29 05:37:38,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:37:38,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495204358] [2023-11-29 05:37:38,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:37:38,626 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 05:37:38,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:37:38,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:38,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:37:38,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:37:38,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:37:38,906 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 05:37:38,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:37:38,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:37:38,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495204358] [2023-11-29 05:37:38,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495204358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:37:38,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:37:38,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:37:38,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59869066] [2023-11-29 05:37:38,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:37:38,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:37:38,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:37:38,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:37:38,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:37:38,911 INFO L87 Difference]: Start difference. First operand 255 states and 333 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 05:37:43,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:37:45,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:37:49,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:37:56,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:37:57,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:37:57,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:37:57,751 INFO L93 Difference]: Finished difference Result 428 states and 558 transitions. [2023-11-29 05:37:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:37:57,755 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 05:37:57,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:37:57,759 INFO L225 Difference]: With dead ends: 428 [2023-11-29 05:37:57,759 INFO L226 Difference]: Without dead ends: 428 [2023-11-29 05:37:57,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 05:37:57,760 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 244 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:37:57,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 854 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 3 Unknown, 0 Unchecked, 18.8s Time] [2023-11-29 05:37:57,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-11-29 05:37:57,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 375. [2023-11-29 05:37:57,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 363 states have (on average 1.2947658402203857) internal successors, (470), 364 states have internal predecessors, (470), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 05:37:57,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 488 transitions. [2023-11-29 05:37:57,793 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 488 transitions. Word has length 10 [2023-11-29 05:37:57,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:37:57,793 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 488 transitions. [2023-11-29 05:37:57,794 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 05:37:57,794 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 488 transitions. [2023-11-29 05:37:57,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 05:37:57,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:37:57,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:37:57,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:57,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:57,996 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:37:57,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:37:57,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1862150271, now seen corresponding path program 1 times [2023-11-29 05:37:57,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:37:57,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048204821] [2023-11-29 05:37:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:37:57,998 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 05:37:57,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:37:58,000 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:58,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:37:58,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:37:58,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:37:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:37:58,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:37:58,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:37:58,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048204821] [2023-11-29 05:37:58,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048204821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:37:58,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:37:58,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:37:58,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968171510] [2023-11-29 05:37:58,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:37:58,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:37:58,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:37:58,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:37:58,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:37:58,266 INFO L87 Difference]: Start difference. First operand 375 states and 488 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 05:37:58,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:37:58,710 INFO L93 Difference]: Finished difference Result 426 states and 554 transitions. [2023-11-29 05:37:58,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:37:58,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2023-11-29 05:37:58,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:37:58,719 INFO L225 Difference]: With dead ends: 426 [2023-11-29 05:37:58,719 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 05:37:58,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 05:37:58,720 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 127 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:37:58,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 585 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:37:58,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 05:37:58,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 373. [2023-11-29 05:37:58,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 361 states have (on average 1.290858725761773) internal successors, (466), 362 states have internal predecessors, (466), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 05:37:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 484 transitions. [2023-11-29 05:37:58,739 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 484 transitions. Word has length 25 [2023-11-29 05:37:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:37:58,739 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 484 transitions. [2023-11-29 05:37:58,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 05:37:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 484 transitions. [2023-11-29 05:37:58,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 05:37:58,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:37:58,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:37:58,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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)] Forceful destruction successful, exit code 0 [2023-11-29 05:37:58,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:58,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:37:58,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:37:58,943 INFO L85 PathProgramCache]: Analyzing trace with hash 743873283, now seen corresponding path program 1 times [2023-11-29 05:37:58,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:37:58,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904723927] [2023-11-29 05:37:58,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:37:58,944 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 05:37:58,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:37:58,945 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:58,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:37:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:37:59,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:37:59,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:37:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:37:59,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:37:59,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:37:59,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904723927] [2023-11-29 05:37:59,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904723927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:37:59,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:37:59,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:37:59,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535322984] [2023-11-29 05:37:59,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:37:59,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:37:59,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:37:59,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:37:59,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:37:59,250 INFO L87 Difference]: Start difference. First operand 373 states and 484 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 05:38:04,233 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 05:38:08,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:38:13,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:38:17,124 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 [] [2023-11-29 05:38:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:20,735 INFO L93 Difference]: Finished difference Result 426 states and 553 transitions. [2023-11-29 05:38:20,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:38:20,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2023-11-29 05:38:20,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:20,740 INFO L225 Difference]: With dead ends: 426 [2023-11-29 05:38:20,741 INFO L226 Difference]: Without dead ends: 420 [2023-11-29 05:38:20,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:38:20,742 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 133 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:20,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1143 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 4 Unknown, 0 Unchecked, 21.4s Time] [2023-11-29 05:38:20,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-11-29 05:38:20,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 367. [2023-11-29 05:38:20,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 355 states have (on average 1.2929577464788733) internal successors, (459), 356 states have internal predecessors, (459), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 05:38:20,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 477 transitions. [2023-11-29 05:38:20,756 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 477 transitions. Word has length 25 [2023-11-29 05:38:20,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:20,757 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 477 transitions. [2023-11-29 05:38:20,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 05:38:20,757 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 477 transitions. [2023-11-29 05:38:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 05:38:20,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:20,763 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:20,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:20,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:20,964 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:38:20,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:20,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1373895433, now seen corresponding path program 1 times [2023-11-29 05:38:20,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:38:20,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639969126] [2023-11-29 05:38:20,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:38:20,966 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 05:38:20,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:38:20,967 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:20,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:38:21,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:38:21,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:21,852 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:38:21,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:38:21,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:38:21,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639969126] [2023-11-29 05:38:21,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639969126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:38:21,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:38:21,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:38:21,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006905817] [2023-11-29 05:38:21,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:38:21,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:38:21,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:38:21,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:38:21,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:38:21,857 INFO L87 Difference]: Start difference. First operand 367 states and 477 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:38:22,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:22,004 INFO L93 Difference]: Finished difference Result 375 states and 469 transitions. [2023-11-29 05:38:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:38:22,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 142 [2023-11-29 05:38:22,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:22,008 INFO L225 Difference]: With dead ends: 375 [2023-11-29 05:38:22,008 INFO L226 Difference]: Without dead ends: 375 [2023-11-29 05:38:22,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:38:22,009 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 52 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:22,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 824 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:38:22,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-29 05:38:22,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2023-11-29 05:38:22,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 361 states have (on average 1.2437673130193905) internal successors, (449), 362 states have internal predecessors, (449), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 05:38:22,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 467 transitions. [2023-11-29 05:38:22,023 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 467 transitions. Word has length 142 [2023-11-29 05:38:22,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:22,023 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 467 transitions. [2023-11-29 05:38:22,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:38:22,024 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 467 transitions. [2023-11-29 05:38:22,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 05:38:22,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:22,027 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:22,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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)] Forceful destruction successful, exit code 0 [2023-11-29 05:38:22,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:22,236 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:38:22,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:22,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1768571995, now seen corresponding path program 1 times [2023-11-29 05:38:22,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:38:22,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514368530] [2023-11-29 05:38:22,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:38:22,238 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 05:38:22,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:38:22,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:22,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:38:22,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:38:22,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:23,063 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 05:38:23,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:38:23,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:38:23,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514368530] [2023-11-29 05:38:23,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514368530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:38:23,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:38:23,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:38:23,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397845431] [2023-11-29 05:38:23,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:38:23,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:38:23,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:38:23,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:38:23,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:38:23,078 INFO L87 Difference]: Start difference. First operand 373 states and 467 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:38:23,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:23,193 INFO L93 Difference]: Finished difference Result 361 states and 447 transitions. [2023-11-29 05:38:23,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:38:23,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 142 [2023-11-29 05:38:23,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:23,196 INFO L225 Difference]: With dead ends: 361 [2023-11-29 05:38:23,196 INFO L226 Difference]: Without dead ends: 361 [2023-11-29 05:38:23,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 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 05:38:23,198 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 15 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:23,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 826 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:38:23,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-29 05:38:23,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2023-11-29 05:38:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 349 states have (on average 1.2292263610315186) internal successors, (429), 350 states have internal predecessors, (429), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 05:38:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 447 transitions. [2023-11-29 05:38:23,211 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 447 transitions. Word has length 142 [2023-11-29 05:38:23,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:23,212 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 447 transitions. [2023-11-29 05:38:23,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:38:23,212 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 447 transitions. [2023-11-29 05:38:23,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 05:38:23,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:23,216 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:23,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:23,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:23,420 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:38:23,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:23,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2066695763, now seen corresponding path program 1 times [2023-11-29 05:38:23,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:38:23,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153330611] [2023-11-29 05:38:23,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:38:23,422 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 05:38:23,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:38:23,423 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:23,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:38:24,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:38:24,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:24,248 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 05:38:24,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:38:24,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:38:24,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153330611] [2023-11-29 05:38:24,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153330611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:38:24,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:38:24,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:38:24,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989267050] [2023-11-29 05:38:24,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:38:24,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:38:24,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:38:24,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:38:24,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:38:24,251 INFO L87 Difference]: Start difference. First operand 361 states and 447 transitions. Second operand has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:38:24,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:24,347 INFO L93 Difference]: Finished difference Result 363 states and 452 transitions. [2023-11-29 05:38:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:38:24,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 142 [2023-11-29 05:38:24,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:24,351 INFO L225 Difference]: With dead ends: 363 [2023-11-29 05:38:24,352 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 05:38:24,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 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 05:38:24,352 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 1 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:24,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 878 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:38:24,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 05:38:24,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2023-11-29 05:38:24,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 350 states have (on average 1.2314285714285715) internal successors, (431), 352 states have internal predecessors, (431), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:38:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 452 transitions. [2023-11-29 05:38:24,365 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 452 transitions. Word has length 142 [2023-11-29 05:38:24,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:24,365 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 452 transitions. [2023-11-29 05:38:24,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:38:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 452 transitions. [2023-11-29 05:38:24,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 05:38:24,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:24,368 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:24,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:24,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:24,569 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:38:24,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:24,569 INFO L85 PathProgramCache]: Analyzing trace with hash -2018166227, now seen corresponding path program 1 times [2023-11-29 05:38:24,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:38:24,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485751762] [2023-11-29 05:38:24,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:38:24,570 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 05:38:24,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:38:24,571 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:24,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:38:25,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:38:25,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 05:38:25,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:38:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:38:25,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:38:25,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485751762] [2023-11-29 05:38:25,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485751762] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:38:25,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:38:25,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:38:25,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804792714] [2023-11-29 05:38:25,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:38:25,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:38:25,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:38:25,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:38:25,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:38:25,501 INFO L87 Difference]: Start difference. First operand 363 states and 452 transitions. Second operand has 8 states, 6 states have (on average 23.0) internal successors, (138), 8 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:38:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:25,813 INFO L93 Difference]: Finished difference Result 372 states and 468 transitions. [2023-11-29 05:38:25,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:38:25,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 23.0) internal successors, (138), 8 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 146 [2023-11-29 05:38:25,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:25,818 INFO L225 Difference]: With dead ends: 372 [2023-11-29 05:38:25,818 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 05:38:25,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:38:25,819 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 7 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:25,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1164 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:38:25,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 05:38:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2023-11-29 05:38:25,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 357 states have (on average 1.2436974789915967) internal successors, (444), 359 states have internal predecessors, (444), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:38:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 465 transitions. [2023-11-29 05:38:25,834 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 465 transitions. Word has length 146 [2023-11-29 05:38:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:25,835 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 465 transitions. [2023-11-29 05:38:25,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 23.0) internal successors, (138), 8 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:38:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 465 transitions. [2023-11-29 05:38:25,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 05:38:25,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:25,838 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:25,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:26,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:26,038 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:38:26,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash -835943251, now seen corresponding path program 2 times [2023-11-29 05:38:26,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:38:26,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493387736] [2023-11-29 05:38:26,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:38:26,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:38:26,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:38:26,041 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:26,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:26,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:38:26,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:38:26,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:38:26,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 62 proven. 10 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-29 05:38:26,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:38:27,202 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 1 proven. 68 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 05:38:27,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:38:27,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493387736] [2023-11-29 05:38:27,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493387736] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:38:27,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:38:27,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 05:38:27,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283642499] [2023-11-29 05:38:27,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:38:27,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:38:27,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:38:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:38:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:38:27,206 INFO L87 Difference]: Start difference. First operand 371 states and 465 transitions. Second operand has 14 states, 12 states have (on average 12.0) internal successors, (144), 14 states have internal predecessors, (144), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:38:28,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:28,177 INFO L93 Difference]: Finished difference Result 386 states and 495 transitions. [2023-11-29 05:38:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 05:38:28,178 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 12.0) internal successors, (144), 14 states have internal predecessors, (144), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 154 [2023-11-29 05:38:28,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:28,181 INFO L225 Difference]: With dead ends: 386 [2023-11-29 05:38:28,181 INFO L226 Difference]: Without dead ends: 384 [2023-11-29 05:38:28,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 05:38:28,182 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 13 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:28,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1746 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:38:28,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-29 05:38:28,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 380. [2023-11-29 05:38:28,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 366 states have (on average 1.2459016393442623) internal successors, (456), 368 states have internal predecessors, (456), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:38:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 477 transitions. [2023-11-29 05:38:28,196 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 477 transitions. Word has length 154 [2023-11-29 05:38:28,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:28,196 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 477 transitions. [2023-11-29 05:38:28,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 12.0) internal successors, (144), 14 states have internal predecessors, (144), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:38:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 477 transitions. [2023-11-29 05:38:28,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 05:38:28,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:28,200 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:28,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:28,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:28,404 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:38:28,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1650703633, now seen corresponding path program 3 times [2023-11-29 05:38:28,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:38:28,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476107727] [2023-11-29 05:38:28,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:38:28,407 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 05:38:28,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:38:28,407 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:28,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:30,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 05:38:30,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:38:30,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:38:30,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:30,300 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 172 proven. 15 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2023-11-29 05:38:30,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:38:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 172 proven. 15 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2023-11-29 05:38:30,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:38:30,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476107727] [2023-11-29 05:38:30,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476107727] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:38:30,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:38:30,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 05:38:30,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696275943] [2023-11-29 05:38:30,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:38:30,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 05:38:30,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:38:30,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 05:38:30,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:38:30,753 INFO L87 Difference]: Start difference. First operand 380 states and 477 transitions. Second operand has 16 states, 14 states have (on average 10.214285714285714) internal successors, (143), 16 states have internal predecessors, (143), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:38:31,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:31,954 INFO L93 Difference]: Finished difference Result 393 states and 506 transitions. [2023-11-29 05:38:31,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 05:38:31,955 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.214285714285714) internal successors, (143), 16 states have internal predecessors, (143), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 172 [2023-11-29 05:38:31,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:31,958 INFO L225 Difference]: With dead ends: 393 [2023-11-29 05:38:31,958 INFO L226 Difference]: Without dead ends: 392 [2023-11-29 05:38:31,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=524, Unknown=0, NotChecked=0, Total=812 [2023-11-29 05:38:31,959 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 18 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:31,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2007 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:38:31,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-11-29 05:38:31,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 387. [2023-11-29 05:38:31,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 373 states have (on average 1.257372654155496) internal successors, (469), 375 states have internal predecessors, (469), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:38:31,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 490 transitions. [2023-11-29 05:38:31,975 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 490 transitions. Word has length 172 [2023-11-29 05:38:31,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:31,975 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 490 transitions. [2023-11-29 05:38:31,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.214285714285714) internal successors, (143), 16 states have internal predecessors, (143), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:38:31,976 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 490 transitions. [2023-11-29 05:38:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 05:38:31,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:31,979 INFO L195 NwaCegarLoop]: trace histogram [44, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:31,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 05:38:32,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:32,179 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:38:32,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:32,180 INFO L85 PathProgramCache]: Analyzing trace with hash -446497619, now seen corresponding path program 4 times [2023-11-29 05:38:32,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:38:32,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328480787] [2023-11-29 05:38:32,181 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:38:32,181 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 05:38:32,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:38:32,182 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:32,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:33,057 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:38:33,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:38:33,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:38:33,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:33,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 414 proven. 55 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2023-11-29 05:38:33,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:38:34,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 1 proven. 465 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2023-11-29 05:38:34,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:38:34,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328480787] [2023-11-29 05:38:34,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328480787] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:38:34,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:38:34,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 05:38:34,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307092908] [2023-11-29 05:38:34,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:38:34,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 05:38:34,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:38:34,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 05:38:34,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:38:34,252 INFO L87 Difference]: Start difference. First operand 387 states and 490 transitions. Second operand has 26 states, 24 states have (on average 6.5) internal successors, (156), 26 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:38:37,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:37,957 INFO L93 Difference]: Finished difference Result 411 states and 544 transitions. [2023-11-29 05:38:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 05:38:37,958 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 6.5) internal successors, (156), 26 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 186 [2023-11-29 05:38:37,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:37,961 INFO L225 Difference]: With dead ends: 411 [2023-11-29 05:38:37,961 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 05:38:37,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=998, Invalid=2194, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 05:38:37,963 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 23 mSDsluCounter, 4056 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4350 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:37,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4350 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 05:38:37,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 05:38:37,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 399. [2023-11-29 05:38:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 385 states have (on average 1.2493506493506494) internal successors, (481), 387 states have internal predecessors, (481), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:38:37,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 502 transitions. [2023-11-29 05:38:37,983 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 502 transitions. Word has length 186 [2023-11-29 05:38:37,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:37,983 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 502 transitions. [2023-11-29 05:38:37,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 6.5) internal successors, (156), 26 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:38:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 502 transitions. [2023-11-29 05:38:37,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-29 05:38:37,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:37,987 INFO L195 NwaCegarLoop]: trace histogram [68, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:38,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:38,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:38,188 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:38:38,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1227068077, now seen corresponding path program 5 times [2023-11-29 05:38:38,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:38:38,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351178937] [2023-11-29 05:38:38,191 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:38:38,191 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 05:38:38,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:38:38,192 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:38,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:38,859 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-11-29 05:38:38,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:38:38,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:38:38,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2569 backedges. 1605 proven. 78 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2023-11-29 05:38:39,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:38:40,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2569 backedges. 301 proven. 548 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2023-11-29 05:38:40,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:38:40,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351178937] [2023-11-29 05:38:40,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351178937] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:38:40,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:38:40,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2023-11-29 05:38:40,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899813712] [2023-11-29 05:38:40,512 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:38:40,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 05:38:40,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:38:40,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 05:38:40,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2023-11-29 05:38:40,515 INFO L87 Difference]: Start difference. First operand 399 states and 502 transitions. Second operand has 30 states, 28 states have (on average 5.714285714285714) internal successors, (160), 30 states have internal predecessors, (160), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:38:45,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:45,073 INFO L93 Difference]: Finished difference Result 425 states and 563 transitions. [2023-11-29 05:38:45,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 05:38:45,074 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 5.714285714285714) internal successors, (160), 30 states have internal predecessors, (160), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 210 [2023-11-29 05:38:45,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:45,077 INFO L225 Difference]: With dead ends: 425 [2023-11-29 05:38:45,077 INFO L226 Difference]: Without dead ends: 424 [2023-11-29 05:38:45,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1065, Invalid=2127, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 05:38:45,079 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 31 mSDsluCounter, 3718 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4009 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:45,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4009 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 05:38:45,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-11-29 05:38:45,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 413. [2023-11-29 05:38:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 399 states have (on average 1.2731829573934836) internal successors, (508), 401 states have internal predecessors, (508), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:38:45,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 529 transitions. [2023-11-29 05:38:45,096 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 529 transitions. Word has length 210 [2023-11-29 05:38:45,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:45,096 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 529 transitions. [2023-11-29 05:38:45,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 5.714285714285714) internal successors, (160), 30 states have internal predecessors, (160), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:38:45,097 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 529 transitions. [2023-11-29 05:38:45,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-29 05:38:45,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:45,099 INFO L195 NwaCegarLoop]: trace histogram [96, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:45,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:45,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:45,300 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:38:45,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash -983547475, now seen corresponding path program 6 times [2023-11-29 05:38:45,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:38:45,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498114942] [2023-11-29 05:38:45,302 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:38:45,303 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 05:38:45,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:38:45,304 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:45,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:38:56,962 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2023-11-29 05:38:56,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:38:57,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 05:38:57,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:58,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 3131 proven. 351 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2023-11-29 05:38:58,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:39:02,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 623 proven. 1703 refuted. 0 times theorem prover too weak. 2637 trivial. 0 not checked. [2023-11-29 05:39:02,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:39:02,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498114942] [2023-11-29 05:39:02,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498114942] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:39:02,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:39:02,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 58 [2023-11-29 05:39:02,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498787268] [2023-11-29 05:39:02,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:39:02,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-11-29 05:39:02,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:39:02,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-11-29 05:39:02,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=2409, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 05:39:02,440 INFO L87 Difference]: Start difference. First operand 413 states and 529 transitions. Second operand has 58 states, 56 states have (on average 3.357142857142857) internal successors, (188), 58 states have internal predecessors, (188), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:39:23,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:23,385 INFO L93 Difference]: Finished difference Result 476 states and 679 transitions. [2023-11-29 05:39:23,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-11-29 05:39:23,387 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 56 states have (on average 3.357142857142857) internal successors, (188), 58 states have internal predecessors, (188), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 238 [2023-11-29 05:39:23,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:23,391 INFO L225 Difference]: With dead ends: 476 [2023-11-29 05:39:23,391 INFO L226 Difference]: Without dead ends: 474 [2023-11-29 05:39:23,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=4089, Invalid=8567, Unknown=0, NotChecked=0, Total=12656 [2023-11-29 05:39:23,396 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 63 mSDsluCounter, 7722 mSDsCounter, 0 mSdLazyCounter, 3358 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 8013 SdHoareTripleChecker+Invalid, 3409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 3358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:23,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 8013 Invalid, 3409 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 3358 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-29 05:39:23,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-29 05:39:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 446. [2023-11-29 05:39:23,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 432 states have (on average 1.3240740740740742) internal successors, (572), 434 states have internal predecessors, (572), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:39:23,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 593 transitions. [2023-11-29 05:39:23,415 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 593 transitions. Word has length 238 [2023-11-29 05:39:23,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:23,415 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 593 transitions. [2023-11-29 05:39:23,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 56 states have (on average 3.357142857142857) internal successors, (188), 58 states have internal predecessors, (188), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:39:23,415 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 593 transitions. [2023-11-29 05:39:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-29 05:39:23,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:23,418 INFO L195 NwaCegarLoop]: trace histogram [152, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:39:23,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:39:23,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:39:23,619 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:39:23,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:23,619 INFO L85 PathProgramCache]: Analyzing trace with hash 216235949, now seen corresponding path program 7 times [2023-11-29 05:39:23,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:39:23,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046682993] [2023-11-29 05:39:23,621 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 05:39:23,621 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 05:39:23,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:39:23,622 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:39:23,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:39:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:25,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 05:39:25,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 12103 backedges. 3066 proven. 253 refuted. 0 times theorem prover too weak. 8784 trivial. 0 not checked. [2023-11-29 05:39:26,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:39:28,884 INFO L134 CoverageAnalysis]: Checked inductivity of 12103 backedges. 1 proven. 3315 refuted. 0 times theorem prover too weak. 8787 trivial. 0 not checked. [2023-11-29 05:39:28,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:39:28,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046682993] [2023-11-29 05:39:28,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046682993] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:39:28,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:39:28,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 05:39:28,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469862618] [2023-11-29 05:39:28,885 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:39:28,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 05:39:28,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:39:28,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 05:39:28,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 05:39:28,888 INFO L87 Difference]: Start difference. First operand 446 states and 593 transitions. Second operand has 50 states, 48 states have (on average 3.75) internal successors, (180), 50 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:39:42,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:42,886 INFO L93 Difference]: Finished difference Result 486 states and 690 transitions. [2023-11-29 05:39:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-11-29 05:39:42,887 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.75) internal successors, (180), 50 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 294 [2023-11-29 05:39:42,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:42,891 INFO L225 Difference]: With dead ends: 486 [2023-11-29 05:39:42,891 INFO L226 Difference]: Without dead ends: 484 [2023-11-29 05:39:42,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1340 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=3742, Invalid=9140, Unknown=0, NotChecked=0, Total=12882 [2023-11-29 05:39:42,897 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 46 mSDsluCounter, 6961 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 7255 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:42,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 7255 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3025 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-11-29 05:39:42,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-29 05:39:42,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 463. [2023-11-29 05:39:42,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 449 states have (on average 1.3028953229398663) internal successors, (585), 451 states have internal predecessors, (585), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:39:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 606 transitions. [2023-11-29 05:39:42,919 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 606 transitions. Word has length 294 [2023-11-29 05:39:42,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:42,920 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 606 transitions. [2023-11-29 05:39:42,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.75) internal successors, (180), 50 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:39:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 606 transitions. [2023-11-29 05:39:42,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-11-29 05:39:42,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:42,924 INFO L195 NwaCegarLoop]: trace histogram [196, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:39:42,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 05:39:43,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:39:43,124 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:39:43,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:43,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1642619565, now seen corresponding path program 8 times [2023-11-29 05:39:43,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:39:43,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292567910] [2023-11-29 05:39:43,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:39:43,127 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 05:39:43,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:39:43,128 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:39:43,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:39:46,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:39:46,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:39:46,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 2921 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-29 05:39:46,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 19913 backedges. 12485 proven. 1485 refuted. 0 times theorem prover too weak. 5943 trivial. 0 not checked. [2023-11-29 05:39:49,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:40:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 19913 backedges. 2477 proven. 6987 refuted. 0 times theorem prover too weak. 10449 trivial. 0 not checked. [2023-11-29 05:40:03,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:40:03,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292567910] [2023-11-29 05:40:03,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292567910] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:40:03,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:40:03,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 114 [2023-11-29 05:40:03,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195218934] [2023-11-29 05:40:03,843 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:40:03,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2023-11-29 05:40:03,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:40:03,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2023-11-29 05:40:03,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3361, Invalid=9521, Unknown=0, NotChecked=0, Total=12882 [2023-11-29 05:40:03,851 INFO L87 Difference]: Start difference. First operand 463 states and 606 transitions. Second operand has 114 states, 112 states have (on average 2.1785714285714284) internal successors, (244), 114 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:41:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:41:23,081 INFO L93 Difference]: Finished difference Result 591 states and 923 transitions. [2023-11-29 05:41:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2023-11-29 05:41:23,082 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 112 states have (on average 2.1785714285714284) internal successors, (244), 114 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 338 [2023-11-29 05:41:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:41:23,085 INFO L225 Difference]: With dead ends: 591 [2023-11-29 05:41:23,085 INFO L226 Difference]: Without dead ends: 591 [2023-11-29 05:41:23,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8856 ImplicationChecksByTransitivity, 65.7s TimeCoverageRelationStatistics Valid=15787, Invalid=33719, Unknown=0, NotChecked=0, Total=49506 [2023-11-29 05:41:23,092 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 136 mSDsluCounter, 16422 mSDsCounter, 0 mSdLazyCounter, 13863 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 16715 SdHoareTripleChecker+Invalid, 14000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 13863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:41:23,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 16715 Invalid, 14000 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [137 Valid, 13863 Invalid, 0 Unknown, 0 Unchecked, 27.8s Time] [2023-11-29 05:41:23,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-11-29 05:41:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 529. [2023-11-29 05:41:23,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 515 states have (on average 1.3902912621359222) internal successors, (716), 517 states have internal predecessors, (716), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:41:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 737 transitions. [2023-11-29 05:41:23,122 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 737 transitions. Word has length 338 [2023-11-29 05:41:23,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:41:23,123 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 737 transitions. [2023-11-29 05:41:23,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 112 states have (on average 2.1785714285714284) internal successors, (244), 114 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:41:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 737 transitions. [2023-11-29 05:41:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-11-29 05:41:23,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:41:23,127 INFO L195 NwaCegarLoop]: trace histogram [308, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:41:23,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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)] Forceful destruction successful, exit code 0 [2023-11-29 05:41:23,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:41:23,328 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:41:23,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:41:23,329 INFO L85 PathProgramCache]: Analyzing trace with hash -118301011, now seen corresponding path program 9 times [2023-11-29 05:41:23,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:41:23,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962911266] [2023-11-29 05:41:23,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:41:23,332 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 05:41:23,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:41:23,333 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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 05:41:23,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509adaee-0317-45ce-8a01-41d0fa323358/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