./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_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_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/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_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/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_d6f096f4-9d0d-44a9-946e-07bc085ca7de/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 04:20:19,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:20:20,041 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 04:20:20,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:20:20,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:20:20,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:20:20,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:20:20,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:20:20,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:20:20,083 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:20:20,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:20:20,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:20:20,086 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:20:20,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:20:20,087 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:20:20,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:20:20,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:20:20,089 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:20:20,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:20:20,090 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:20:20,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:20:20,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:20:20,093 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:20:20,094 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:20:20,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:20:20,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:20:20,096 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:20:20,097 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:20:20,097 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:20:20,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:20:20,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:20:20,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:20:20,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:20:20,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:20:20,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:20:20,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:20:20,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:20:20,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:20:20,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:20:20,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:20:20,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:20:20,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:20:20,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:20:20,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:20:20,103 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_d6f096f4-9d0d-44a9-946e-07bc085ca7de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2023-11-29 04:20:20,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:20:20,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:20:20,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:20:20,419 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:20:20,420 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:20:20,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i [2023-11-29 04:20:23,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:20:24,259 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:20:24,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i [2023-11-29 04:20:24,283 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/data/9b81800f3/66ffd23a60814f6c855d9f6f01dec313/FLAGbe28c7379 [2023-11-29 04:20:24,302 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/data/9b81800f3/66ffd23a60814f6c855d9f6f01dec313 [2023-11-29 04:20:24,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:20:24,308 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:20:24,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:20:24,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:20:24,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:20:24,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:20:24" (1/1) ... [2023-11-29 04:20:24,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69867cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:24, skipping insertion in model container [2023-11-29 04:20:24,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:20:24" (1/1) ... [2023-11-29 04:20:24,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:20:25,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:20:25,069 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 04:20:25,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46794132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:25, skipping insertion in model container [2023-11-29 04:20:25,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:20:25,070 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 04:20:25,073 INFO L158 Benchmark]: Toolchain (without parser) took 763.83ms. Allocated memory is still 199.2MB. Free memory was 158.0MB in the beginning and 136.0MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 04:20:25,073 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 130.0MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:20:25,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 760.80ms. Allocated memory is still 199.2MB. Free memory was 157.6MB in the beginning and 136.0MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 04:20:25,076 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 130.0MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 760.80ms. Allocated memory is still 199.2MB. Free memory was 157.6MB in the beginning and 136.0MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. 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_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/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_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/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_d6f096f4-9d0d-44a9-946e-07bc085ca7de/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 04:20:27,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:20:27,368 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 04:20:27,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:20:27,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:20:27,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:20:27,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:20:27,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:20:27,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:20:27,418 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:20:27,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:20:27,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:20:27,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:20:27,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:20:27,422 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:20:27,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:20:27,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:20:27,424 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:20:27,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:20:27,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:20:27,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:20:27,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:20:27,427 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:20:27,427 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:20:27,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:20:27,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:20:27,429 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:20:27,429 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:20:27,430 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:20:27,430 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:20:27,431 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:20:27,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:20:27,432 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:20:27,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:20:27,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:20:27,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:20:27,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:20:27,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:20:27,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:20:27,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:20:27,434 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:20:27,435 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:20:27,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:20:27,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:20:27,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:20:27,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:20:27,436 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:20:27,436 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_d6f096f4-9d0d-44a9-946e-07bc085ca7de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2023-11-29 04:20:27,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:20:27,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:20:27,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:20:27,866 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:20:27,867 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:20:27,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i [2023-11-29 04:20:30,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:20:31,109 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:20:31,110 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-3.i [2023-11-29 04:20:31,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/data/317f44e5a/0c73a480705948cb98e56cd5f479271e/FLAG6c495940a [2023-11-29 04:20:31,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/data/317f44e5a/0c73a480705948cb98e56cd5f479271e [2023-11-29 04:20:31,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:20:31,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:20:31,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:20:31,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:20:31,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:20:31,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:20:31" (1/1) ... [2023-11-29 04:20:31,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce844be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:31, skipping insertion in model container [2023-11-29 04:20:31,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:20:31" (1/1) ... [2023-11-29 04:20:31,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:20:31,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:20:31,887 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 04:20:31,916 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:20:32,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:20:32,057 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:20:32,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:20:32,184 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:20:32,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32 WrapperNode [2023-11-29 04:20:32,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:20:32,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:20:32,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:20:32,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:20:32,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,310 INFO L138 Inliner]: procedures = 180, calls = 439, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1422 [2023-11-29 04:20:32,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:20:32,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:20:32,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:20:32,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:20:32,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,340 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,496 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 04:20:32,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:20:32,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:20:32,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:20:32,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:20:32,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (1/1) ... [2023-11-29 04:20:32,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:20:32,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:32,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:20:32,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:20:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 04:20:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 04:20:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 04:20:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 04:20:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 04:20:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 04:20:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 04:20:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 04:20:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 04:20:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 04:20:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 04:20:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 04:20:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 04:20:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 04:20:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 04:20:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 04:20:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 04:20:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:20:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:20:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 04:20:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 04:20:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 04:20:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 04:20:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 04:20:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 04:20:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 04:20:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 04:20:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:20:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 04:20:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 04:20:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 04:20:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 04:20:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:20:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 04:20:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 04:20:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 04:20:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:20:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:20:32,955 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:20:32,957 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:20:50,092 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:20:50,138 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:20:50,138 INFO L309 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-29 04:20:50,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:20:50 BoogieIcfgContainer [2023-11-29 04:20:50,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:20:50,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:20:50,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:20:50,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:20:50,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:20:31" (1/3) ... [2023-11-29 04:20:50,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af47a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:20:50, skipping insertion in model container [2023-11-29 04:20:50,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:32" (2/3) ... [2023-11-29 04:20:50,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af47a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:20:50, skipping insertion in model container [2023-11-29 04:20:50,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:20:50" (3/3) ... [2023-11-29 04:20:50,148 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test4-3.i [2023-11-29 04:20:50,182 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:20:50,182 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:20:50,237 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:20:50,245 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;@6899e1ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:20:50,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:20:50,251 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 04:20:50,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 04:20:50,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:50,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 04:20:50,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:20:50,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:50,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1039095, now seen corresponding path program 1 times [2023-11-29 04:20:50,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:20:50,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979947608] [2023-11-29 04:20:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:50,280 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 04:20:50,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:20:50,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:20:50,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:20:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:50,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:20:50,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:50,523 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 04:20:50,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:50,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:20:50,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979947608] [2023-11-29 04:20:50,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979947608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:50,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:50,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:20:50,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078050667] [2023-11-29 04:20:50,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:50,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:20:50,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:20:50,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:20:50,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:20:50,564 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 04:20:54,674 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 04:20:58,741 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 04:20:59,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:59,389 INFO L93 Difference]: Finished difference Result 308 states and 403 transitions. [2023-11-29 04:20:59,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:20:59,392 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 04:20:59,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:59,402 INFO L225 Difference]: With dead ends: 308 [2023-11-29 04:20:59,403 INFO L226 Difference]: Without dead ends: 305 [2023-11-29 04:20:59,404 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 04:20:59,407 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 81 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s 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, 8.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:59,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 642 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2023-11-29 04:20:59,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-29 04:20:59,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 255. [2023-11-29 04:20:59,457 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 04:20:59,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 333 transitions. [2023-11-29 04:20:59,462 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 333 transitions. Word has length 3 [2023-11-29 04:20:59,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:59,463 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 333 transitions. [2023-11-29 04:20:59,463 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 04:20:59,463 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 333 transitions. [2023-11-29 04:20:59,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 04:20:59,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:59,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:59,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:20:59,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:20:59,665 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:20:59,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1036485316, now seen corresponding path program 1 times [2023-11-29 04:20:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:20:59,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357809952] [2023-11-29 04:20:59,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:59,667 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 04:20:59,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:20:59,669 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:20:59,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:20:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:59,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:20:59,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:59,945 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 04:20:59,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:59,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:20:59,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357809952] [2023-11-29 04:20:59,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357809952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:59,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:59,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:20:59,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271100478] [2023-11-29 04:20:59,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:59,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:20:59,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:20:59,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:20:59,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:20:59,951 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 04:21:04,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:21:06,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:21:10,168 WARN L539 Checker$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 04:21:13,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:21:17,305 WARN L539 Checker$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 04:21:18,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:18,099 INFO L93 Difference]: Finished difference Result 428 states and 558 transitions. [2023-11-29 04:21:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:21:18,102 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 04:21:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:18,105 INFO L225 Difference]: With dead ends: 428 [2023-11-29 04:21:18,106 INFO L226 Difference]: Without dead ends: 428 [2023-11-29 04:21:18,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:21:18,107 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 244 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s 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, 18.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:18,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 854 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 3 Unknown, 0 Unchecked, 18.1s Time] [2023-11-29 04:21:18,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-11-29 04:21:18,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 375. [2023-11-29 04:21:18,127 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 04:21:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 488 transitions. [2023-11-29 04:21:18,130 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 488 transitions. Word has length 10 [2023-11-29 04:21:18,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:18,130 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 488 transitions. [2023-11-29 04:21:18,131 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 04:21:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 488 transitions. [2023-11-29 04:21:18,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:21:18,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:18,132 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 04:21:18,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:18,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:18,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:18,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:18,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1862150271, now seen corresponding path program 1 times [2023-11-29 04:21:18,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:21:18,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48770177] [2023-11-29 04:21:18,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:18,334 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 04:21:18,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:21:18,336 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:18,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:18,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:21:18,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:18,580 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 04:21:18,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:21:18,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:21:18,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48770177] [2023-11-29 04:21:18,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48770177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:18,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:18,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:21:18,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028031745] [2023-11-29 04:21:18,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:18,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:18,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:21:18,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:18,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:18,584 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 04:21:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:19,368 INFO L93 Difference]: Finished difference Result 426 states and 554 transitions. [2023-11-29 04:21:19,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:19,374 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 04:21:19,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:19,377 INFO L225 Difference]: With dead ends: 426 [2023-11-29 04:21:19,377 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 04:21:19,377 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 04:21:19,379 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 127 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:19,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 585 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:21:19,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 04:21:19,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 373. [2023-11-29 04:21:19,398 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 04:21:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 484 transitions. [2023-11-29 04:21:19,401 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 484 transitions. Word has length 25 [2023-11-29 04:21:19,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:19,402 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 484 transitions. [2023-11-29 04:21:19,402 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 04:21:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 484 transitions. [2023-11-29 04:21:19,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:21:19,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:19,403 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 04:21:19,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:19,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:19,604 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:19,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:19,605 INFO L85 PathProgramCache]: Analyzing trace with hash 743873283, now seen corresponding path program 1 times [2023-11-29 04:21:19,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:21:19,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287315000] [2023-11-29 04:21:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:19,606 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 04:21:19,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:21:19,607 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:19,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:19,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:21:19,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:19,850 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 04:21:19,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:21:19,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:21:19,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287315000] [2023-11-29 04:21:19,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287315000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:19,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:19,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:21:19,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253250328] [2023-11-29 04:21:19,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:19,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:21:19,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:21:19,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:21:19,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:21:19,853 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 04:21:24,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:21:28,560 WARN L539 Checker$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 04:21:34,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:21:38,213 WARN L539 Checker$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 04:21:39,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:21:41,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:21:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:45,751 INFO L93 Difference]: Finished difference Result 426 states and 553 transitions. [2023-11-29 04:21:45,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:21:45,755 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 04:21:45,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:45,758 INFO L225 Difference]: With dead ends: 426 [2023-11-29 04:21:45,758 INFO L226 Difference]: Without dead ends: 420 [2023-11-29 04:21:45,759 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 04:21:45,759 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 133 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s 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, 25.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:45,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1143 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 4 Unknown, 0 Unchecked, 25.8s Time] [2023-11-29 04:21:45,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-11-29 04:21:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 367. [2023-11-29 04:21:45,771 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 04:21:45,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 477 transitions. [2023-11-29 04:21:45,773 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 477 transitions. Word has length 25 [2023-11-29 04:21:45,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:45,774 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 477 transitions. [2023-11-29 04:21:45,774 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 04:21:45,774 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 477 transitions. [2023-11-29 04:21:45,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:21:45,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:45,781 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 04:21:45,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:45,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:45,982 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:45,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:45,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1373895433, now seen corresponding path program 1 times [2023-11-29 04:21:45,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:21:45,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102991677] [2023-11-29 04:21:45,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:45,986 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 04:21:45,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:21:45,987 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:45,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:46,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:21:46,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:47,038 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 04:21:47,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:21:47,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:21:47,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102991677] [2023-11-29 04:21:47,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102991677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:47,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:47,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:21:47,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584853259] [2023-11-29 04:21:47,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:47,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:21:47,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:21:47,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:21:47,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:21:47,043 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 04:21:47,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:47,188 INFO L93 Difference]: Finished difference Result 375 states and 469 transitions. [2023-11-29 04:21:47,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:21:47,189 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 04:21:47,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:47,191 INFO L225 Difference]: With dead ends: 375 [2023-11-29 04:21:47,191 INFO L226 Difference]: Without dead ends: 375 [2023-11-29 04:21:47,191 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 04:21:47,192 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 04:21:47,193 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 04:21:47,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-29 04:21:47,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2023-11-29 04:21:47,202 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 04:21:47,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 467 transitions. [2023-11-29 04:21:47,205 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 467 transitions. Word has length 142 [2023-11-29 04:21:47,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:47,205 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 467 transitions. [2023-11-29 04:21:47,205 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 04:21:47,205 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 467 transitions. [2023-11-29 04:21:47,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:21:47,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:47,209 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 04:21:47,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:47,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:47,410 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:47,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:47,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1768571995, now seen corresponding path program 1 times [2023-11-29 04:21:47,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:21:47,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119967768] [2023-11-29 04:21:47,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:47,412 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 04:21:47,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:21:47,413 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:47,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:48,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:21:48,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:48,495 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 04:21:48,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:21:48,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:21:48,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119967768] [2023-11-29 04:21:48,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119967768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:48,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:48,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:21:48,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057592766] [2023-11-29 04:21:48,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:48,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:21:48,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:21:48,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:21:48,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:21:48,499 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 04:21:48,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:48,601 INFO L93 Difference]: Finished difference Result 361 states and 447 transitions. [2023-11-29 04:21:48,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:21:48,602 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 04:21:48,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:48,605 INFO L225 Difference]: With dead ends: 361 [2023-11-29 04:21:48,605 INFO L226 Difference]: Without dead ends: 361 [2023-11-29 04:21:48,605 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 04:21:48,606 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 04:21:48,607 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 04:21:48,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-29 04:21:48,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2023-11-29 04:21:48,619 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 04:21:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 447 transitions. [2023-11-29 04:21:48,622 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 447 transitions. Word has length 142 [2023-11-29 04:21:48,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:48,622 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 447 transitions. [2023-11-29 04:21:48,623 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 04:21:48,623 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 447 transitions. [2023-11-29 04:21:48,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:21:48,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:48,626 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 04:21:48,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:48,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:48,833 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:48,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:48,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2066695763, now seen corresponding path program 1 times [2023-11-29 04:21:48,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:21:48,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539014025] [2023-11-29 04:21:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:48,835 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 04:21:48,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:21:48,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:48,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:49,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:21:49,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:49,942 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 04:21:49,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:21:49,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:21:49,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539014025] [2023-11-29 04:21:49,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539014025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:49,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:49,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:21:49,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314009276] [2023-11-29 04:21:49,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:49,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:21:49,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:21:49,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:21:49,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:21:49,947 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 04:21:50,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:50,052 INFO L93 Difference]: Finished difference Result 363 states and 452 transitions. [2023-11-29 04:21:50,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:21:50,053 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 04:21:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:50,058 INFO L225 Difference]: With dead ends: 363 [2023-11-29 04:21:50,058 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 04:21:50,058 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 04:21:50,059 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 04:21:50,059 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 04:21:50,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 04:21:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2023-11-29 04:21:50,071 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 04:21:50,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 452 transitions. [2023-11-29 04:21:50,074 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 452 transitions. Word has length 142 [2023-11-29 04:21:50,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:50,074 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 452 transitions. [2023-11-29 04:21:50,074 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 04:21:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 452 transitions. [2023-11-29 04:21:50,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 04:21:50,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:50,077 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 04:21:50,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:50,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:50,278 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:50,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:50,279 INFO L85 PathProgramCache]: Analyzing trace with hash -2018166227, now seen corresponding path program 1 times [2023-11-29 04:21:50,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:21:50,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316979509] [2023-11-29 04:21:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:50,280 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 04:21:50,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:21:50,282 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:50,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:51,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:21:51,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:51,270 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 04:21:51,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:21:51,397 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 04:21:51,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:21:51,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316979509] [2023-11-29 04:21:51,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316979509] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:21:51,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:21:51,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:21:51,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604520905] [2023-11-29 04:21:51,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:21:51,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:21:51,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:21:51,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:21:51,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:21:51,401 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 04:21:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:51,739 INFO L93 Difference]: Finished difference Result 372 states and 468 transitions. [2023-11-29 04:21:51,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:21:51,740 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 04:21:51,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:51,743 INFO L225 Difference]: With dead ends: 372 [2023-11-29 04:21:51,743 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 04:21:51,743 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 04:21:51,744 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 04:21:51,744 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 04:21:51,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 04:21:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2023-11-29 04:21:51,754 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 04:21:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 465 transitions. [2023-11-29 04:21:51,756 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 465 transitions. Word has length 146 [2023-11-29 04:21:51,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:51,756 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 465 transitions. [2023-11-29 04:21:51,757 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 04:21:51,757 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 465 transitions. [2023-11-29 04:21:51,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 04:21:51,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:51,759 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 04:21:51,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:51,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:51,960 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:51,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:51,961 INFO L85 PathProgramCache]: Analyzing trace with hash -835943251, now seen corresponding path program 2 times [2023-11-29 04:21:51,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:21:51,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290194578] [2023-11-29 04:21:51,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:21:51,962 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 04:21:51,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:21:51,963 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:51,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:52,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:21:52,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:21:52,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:21:52,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:53,068 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 04:21:53,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:21:53,372 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 04:21:53,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:21:53,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290194578] [2023-11-29 04:21:53,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290194578] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:21:53,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:21:53,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 04:21:53,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476346169] [2023-11-29 04:21:53,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:21:53,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:21:53,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:21:53,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:21:53,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:21:53,376 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 04:21:54,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:54,452 INFO L93 Difference]: Finished difference Result 386 states and 495 transitions. [2023-11-29 04:21:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:21:54,453 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 04:21:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:54,456 INFO L225 Difference]: With dead ends: 386 [2023-11-29 04:21:54,456 INFO L226 Difference]: Without dead ends: 384 [2023-11-29 04:21:54,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:21:54,457 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 13 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:54,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1746 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:21:54,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-29 04:21:54,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 380. [2023-11-29 04:21:54,479 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 04:21:54,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 477 transitions. [2023-11-29 04:21:54,483 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 477 transitions. Word has length 154 [2023-11-29 04:21:54,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:54,483 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 477 transitions. [2023-11-29 04:21:54,484 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 04:21:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 477 transitions. [2023-11-29 04:21:54,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 04:21:54,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:54,487 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 04:21:54,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:54,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:54,688 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:54,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:54,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1650703633, now seen corresponding path program 3 times [2023-11-29 04:21:54,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:21:54,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623707364] [2023-11-29 04:21:54,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:21:54,691 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 04:21:54,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:21:54,692 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:54,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:56,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 04:21:56,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:21:56,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:21:56,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:56,625 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 04:21:56,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:21:56,972 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 04:21:56,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:21:56,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623707364] [2023-11-29 04:21:56,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623707364] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:21:56,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:21:56,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 04:21:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082232158] [2023-11-29 04:21:56,973 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:21:56,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:21:56,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:21:56,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:21:56,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:21:56,976 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 04:21:57,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:57,949 INFO L93 Difference]: Finished difference Result 393 states and 506 transitions. [2023-11-29 04:21:57,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:21:57,950 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 04:21:57,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:57,954 INFO L225 Difference]: With dead ends: 393 [2023-11-29 04:21:57,954 INFO L226 Difference]: Without dead ends: 392 [2023-11-29 04:21:57,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=288, Invalid=524, Unknown=0, NotChecked=0, Total=812 [2023-11-29 04:21:57,955 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 18 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:57,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2007 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:21:57,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-11-29 04:21:57,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 387. [2023-11-29 04:21:57,967 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 04:21:57,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 490 transitions. [2023-11-29 04:21:57,969 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 490 transitions. Word has length 172 [2023-11-29 04:21:57,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:57,970 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 490 transitions. [2023-11-29 04:21:57,970 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 04:21:57,970 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 490 transitions. [2023-11-29 04:21:57,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 04:21:57,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:57,973 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 04:21:57,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:58,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:58,173 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:58,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:58,174 INFO L85 PathProgramCache]: Analyzing trace with hash -446497619, now seen corresponding path program 4 times [2023-11-29 04:21:58,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:21:58,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925093319] [2023-11-29 04:21:58,175 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:21:58,175 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 04:21:58,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:21:58,176 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:58,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:21:59,082 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:21:59,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:21:59,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:21:59,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:59,345 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 04:21:59,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:21:59,990 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 04:21:59,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:21:59,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925093319] [2023-11-29 04:21:59,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925093319] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:21:59,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:21:59,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 04:21:59,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882164942] [2023-11-29 04:21:59,991 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:21:59,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 04:21:59,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:21:59,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 04:21:59,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:21:59,993 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 04:22:02,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:02,662 INFO L93 Difference]: Finished difference Result 411 states and 544 transitions. [2023-11-29 04:22:02,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 04:22:02,663 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 04:22:02,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:02,665 INFO L225 Difference]: With dead ends: 411 [2023-11-29 04:22:02,666 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 04:22:02,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=998, Invalid=2194, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 04:22:02,667 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 23 mSDsluCounter, 4056 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:02,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4350 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:22:02,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 04:22:02,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 399. [2023-11-29 04:22:02,682 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 04:22:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 502 transitions. [2023-11-29 04:22:02,683 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 502 transitions. Word has length 186 [2023-11-29 04:22:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:02,684 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 502 transitions. [2023-11-29 04:22:02,684 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 04:22:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 502 transitions. [2023-11-29 04:22:02,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-29 04:22:02,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:02,687 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 04:22:02,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-29 04:22:02,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:02,888 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:22:02,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:02,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1227068077, now seen corresponding path program 5 times [2023-11-29 04:22:02,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:22:02,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176940114] [2023-11-29 04:22:02,891 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:22:02,891 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 04:22:02,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:22:02,892 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:02,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:03,504 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-11-29 04:22:03,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:22:03,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:22:03,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:03,763 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 04:22:03,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:04,730 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 04:22:04,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:22:04,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176940114] [2023-11-29 04:22:04,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176940114] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:22:04,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:22:04,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2023-11-29 04:22:04,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711925336] [2023-11-29 04:22:04,731 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:04,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 04:22:04,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:22:04,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 04:22:04,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:22:04,733 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 04:22:08,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:08,451 INFO L93 Difference]: Finished difference Result 425 states and 563 transitions. [2023-11-29 04:22:08,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 04:22:08,452 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 04:22:08,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:08,455 INFO L225 Difference]: With dead ends: 425 [2023-11-29 04:22:08,455 INFO L226 Difference]: Without dead ends: 424 [2023-11-29 04:22:08,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1065, Invalid=2127, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 04:22:08,458 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 31 mSDsluCounter, 3718 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:08,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4009 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:22:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-11-29 04:22:08,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 413. [2023-11-29 04:22:08,470 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 04:22:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 529 transitions. [2023-11-29 04:22:08,472 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 529 transitions. Word has length 210 [2023-11-29 04:22:08,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:08,473 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 529 transitions. [2023-11-29 04:22:08,473 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 04:22:08,473 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 529 transitions. [2023-11-29 04:22:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-29 04:22:08,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:08,476 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 04:22:08,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:08,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:08,676 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:22:08,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:08,677 INFO L85 PathProgramCache]: Analyzing trace with hash -983547475, now seen corresponding path program 6 times [2023-11-29 04:22:08,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:22:08,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455698308] [2023-11-29 04:22:08,678 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 04:22:08,678 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 04:22:08,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:22:08,679 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:08,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:20,671 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2023-11-29 04:22:20,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:22:20,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 04:22:20,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:21,887 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 04:22:21,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:26,602 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 04:22:26,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:22:26,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455698308] [2023-11-29 04:22:26,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455698308] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:22:26,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:22:26,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 58 [2023-11-29 04:22:26,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972217384] [2023-11-29 04:22:26,603 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:26,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-11-29 04:22:26,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:22:26,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-11-29 04:22:26,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=2409, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 04:22:26,608 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 04:22:48,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:48,522 INFO L93 Difference]: Finished difference Result 476 states and 679 transitions. [2023-11-29 04:22:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-11-29 04:22:48,524 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 04:22:48,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:48,528 INFO L225 Difference]: With dead ends: 476 [2023-11-29 04:22:48,529 INFO L226 Difference]: Without dead ends: 474 [2023-11-29 04:22:48,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=4089, Invalid=8567, Unknown=0, NotChecked=0, Total=12656 [2023-11-29 04:22:48,546 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 63 mSDsluCounter, 7722 mSDsCounter, 0 mSdLazyCounter, 3358 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s 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, 9.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:48,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 8013 Invalid, 3409 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 3358 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-11-29 04:22:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-29 04:22:48,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 446. [2023-11-29 04:22:48,565 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 04:22:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 593 transitions. [2023-11-29 04:22:48,569 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 593 transitions. Word has length 238 [2023-11-29 04:22:48,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:48,570 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 593 transitions. [2023-11-29 04:22:48,570 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 04:22:48,570 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 593 transitions. [2023-11-29 04:22:48,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-29 04:22:48,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:48,574 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 04:22:48,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:48,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:48,775 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:22:48,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:48,777 INFO L85 PathProgramCache]: Analyzing trace with hash 216235949, now seen corresponding path program 7 times [2023-11-29 04:22:48,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:22:48,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21657338] [2023-11-29 04:22:48,779 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 04:22:48,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:22:48,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:22:48,780 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:48,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:22:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:50,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:22:50,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:51,551 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 04:22:51,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:54,066 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 04:22:54,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:22:54,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21657338] [2023-11-29 04:22:54,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21657338] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:22:54,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:22:54,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 04:22:54,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212661161] [2023-11-29 04:22:54,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:54,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 04:22:54,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:22:54,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 04:22:54,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 04:22:54,071 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 04:23:07,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:07,813 INFO L93 Difference]: Finished difference Result 486 states and 690 transitions. [2023-11-29 04:23:07,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-11-29 04:23:07,815 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 04:23:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:07,818 INFO L225 Difference]: With dead ends: 486 [2023-11-29 04:23:07,818 INFO L226 Difference]: Without dead ends: 484 [2023-11-29 04:23:07,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1340 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=3742, Invalid=9140, Unknown=0, NotChecked=0, Total=12882 [2023-11-29 04:23:07,824 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 04:23:07,824 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 04:23:07,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-29 04:23:07,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 463. [2023-11-29 04:23:07,839 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 04:23:07,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 606 transitions. [2023-11-29 04:23:07,842 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 606 transitions. Word has length 294 [2023-11-29 04:23:07,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:07,842 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 606 transitions. [2023-11-29 04:23:07,843 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 04:23:07,843 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 606 transitions. [2023-11-29 04:23:07,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-11-29 04:23:07,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:07,846 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 04:23:07,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:23:08,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:23:08,047 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:23:08,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:08,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1642619565, now seen corresponding path program 8 times [2023-11-29 04:23:08,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:23:08,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324783925] [2023-11-29 04:23:08,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:23:08,050 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 04:23:08,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:23:08,051 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:23:08,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:23:11,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:23:11,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:23:11,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 2921 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-29 04:23:11,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:15,377 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 04:23:15,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:27,463 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 04:23:27,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:23:27,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324783925] [2023-11-29 04:23:27,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324783925] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:27,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:27,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 114 [2023-11-29 04:23:27,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158934707] [2023-11-29 04:23:27,464 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:27,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2023-11-29 04:23:27,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:23:27,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2023-11-29 04:23:27,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3361, Invalid=9521, Unknown=0, NotChecked=0, Total=12882 [2023-11-29 04:23:27,470 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 04:25:00,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:00,181 INFO L93 Difference]: Finished difference Result 591 states and 923 transitions. [2023-11-29 04:25:00,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2023-11-29 04:25:00,183 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 04:25:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:00,187 INFO L225 Difference]: With dead ends: 591 [2023-11-29 04:25:00,187 INFO L226 Difference]: Without dead ends: 591 [2023-11-29 04:25:00,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8856 ImplicationChecksByTransitivity, 74.6s TimeCoverageRelationStatistics Valid=15787, Invalid=33719, Unknown=0, NotChecked=0, Total=49506 [2023-11-29 04:25:00,198 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 136 mSDsluCounter, 16422 mSDsCounter, 0 mSdLazyCounter, 13863 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 16715 SdHoareTripleChecker+Invalid, 14000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 13863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:00,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 16715 Invalid, 14000 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [137 Valid, 13863 Invalid, 0 Unknown, 0 Unchecked, 31.1s Time] [2023-11-29 04:25:00,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-11-29 04:25:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 529. [2023-11-29 04:25:00,234 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 04:25:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 737 transitions. [2023-11-29 04:25:00,237 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 737 transitions. Word has length 338 [2023-11-29 04:25:00,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:00,237 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 737 transitions. [2023-11-29 04:25:00,238 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 04:25:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 737 transitions. [2023-11-29 04:25:00,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-11-29 04:25:00,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:00,242 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 04:25:00,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 04:25:00,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:25:00,442 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:00,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:00,444 INFO L85 PathProgramCache]: Analyzing trace with hash -118301011, now seen corresponding path program 9 times [2023-11-29 04:25:00,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:00,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61805285] [2023-11-29 04:25:00,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:25:00,446 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 04:25:00,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:00,447 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:25:00,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f096f4-9d0d-44a9-946e-07bc085ca7de/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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