./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/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_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/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_bef93d40-bfa1-4a96-b3d5-daae1bef9072/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 fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:46:59,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:46:59,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 03:46:59,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:46:59,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:46:59,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:46:59,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:46:59,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:46:59,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:46:59,301 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:46:59,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:46:59,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:46:59,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:46:59,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:46:59,304 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:46:59,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:46:59,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:46:59,305 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:46:59,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:46:59,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:46:59,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:46:59,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:46:59,308 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 03:46:59,308 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 03:46:59,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:46:59,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:46:59,309 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:46:59,310 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:46:59,310 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:46:59,310 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:46:59,311 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:46:59,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:46:59,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:46:59,312 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:46:59,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:46:59,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:46:59,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:46:59,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:46:59,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:46:59,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:46:59,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:46:59,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:46:59,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:46:59,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:46:59,315 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_bef93d40-bfa1-4a96-b3d5-daae1bef9072/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2023-11-29 03:46:59,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:46:59,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:46:59,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:46:59,586 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:46:59,586 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:46:59,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test1-1.i [2023-11-29 03:47:02,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:47:02,681 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:47:02,682 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test1-1.i [2023-11-29 03:47:02,699 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/data/0fb0dbf8f/5a4cee054a6146cbaefad9561ad71eae/FLAGe04e96345 [2023-11-29 03:47:02,986 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/data/0fb0dbf8f/5a4cee054a6146cbaefad9561ad71eae [2023-11-29 03:47:02,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:47:02,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:47:02,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:47:02,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:47:02,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:47:02,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:47:02" (1/1) ... [2023-11-29 03:47:02,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791d3047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:02, skipping insertion in model container [2023-11-29 03:47:02,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:47:02" (1/1) ... [2023-11-29 03:47:03,056 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:47:03,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:47:03,487 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 03:47:03,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1350fdf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:03, skipping insertion in model container [2023-11-29 03:47:03,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:47:03,489 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 03:47:03,491 INFO L158 Benchmark]: Toolchain (without parser) took 499.22ms. Allocated memory is still 161.5MB. Free memory was 124.0MB in the beginning and 107.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:47:03,492 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 161.5MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:47:03,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.22ms. Allocated memory is still 161.5MB. Free memory was 123.7MB in the beginning and 107.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:47:03,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 161.5MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.22ms. Allocated memory is still 161.5MB. Free memory was 123.7MB in the beginning and 107.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 738]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/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_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/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_bef93d40-bfa1-4a96-b3d5-daae1bef9072/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 fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:47:05,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:47:05,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 03:47:05,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:47:05,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:47:05,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:47:05,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:47:05,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:47:05,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:47:05,446 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:47:05,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:47:05,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:47:05,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:47:05,449 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:47:05,450 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:47:05,450 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:47:05,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:47:05,452 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:47:05,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:47:05,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:47:05,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:47:05,454 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:47:05,455 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 03:47:05,455 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 03:47:05,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:47:05,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:47:05,457 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:47:05,457 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:47:05,458 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:47:05,458 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:47:05,458 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:47:05,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:47:05,459 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:47:05,459 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:47:05,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:47:05,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:47:05,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:47:05,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:47:05,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:47:05,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:47:05,461 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:47:05,461 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:47:05,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:47:05,462 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:47:05,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:47:05,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:47:05,462 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:47:05,463 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_bef93d40-bfa1-4a96-b3d5-daae1bef9072/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2023-11-29 03:47:05,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:47:05,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:47:05,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:47:05,811 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:47:05,811 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:47:05,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test1-1.i [2023-11-29 03:47:08,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:47:08,914 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:47:08,914 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test1-1.i [2023-11-29 03:47:08,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/data/f93e4184c/8ebd790f1a104d26aca940a88b69b884/FLAGb04da2597 [2023-11-29 03:47:08,948 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/data/f93e4184c/8ebd790f1a104d26aca940a88b69b884 [2023-11-29 03:47:08,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:47:08,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:47:08,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:47:08,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:47:08,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:47:08,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:47:08" (1/1) ... [2023-11-29 03:47:08,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d793a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:08, skipping insertion in model container [2023-11-29 03:47:08,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:47:08" (1/1) ... [2023-11-29 03:47:09,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:47:09,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:47:09,515 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 03:47:09,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:47:09,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:47:09,587 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:47:09,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:47:09,720 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:47:09,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09 WrapperNode [2023-11-29 03:47:09,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:47:09,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:47:09,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:47:09,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:47:09,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,804 INFO L138 Inliner]: procedures = 180, calls = 177, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 585 [2023-11-29 03:47:09,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:47:09,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:47:09,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:47:09,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:47:09,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,875 INFO L175 MemorySlicer]: Split 163 memory accesses to 3 slices as follows [2, 5, 156]. 96 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 43 writes are split as follows [0, 1, 42]. [2023-11-29 03:47:09,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,876 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:47:09,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:47:09,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:47:09,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:47:09,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (1/1) ... [2023-11-29 03:47:09,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:47:09,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:09,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:47:09,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:47:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 03:47:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 03:47:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 03:47:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 03:47:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 03:47:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 03:47:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 03:47:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 03:47:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 03:47:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 03:47:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 03:47:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 03:47:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:47:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:47:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:47:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 03:47:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 03:47:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 03:47:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 03:47:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 03:47:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 03:47:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:47:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 03:47:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 03:47:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 03:47:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:47:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 03:47:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 03:47:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:47:10,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:47:10,208 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:47:10,210 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:47:17,324 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:47:17,358 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:47:17,359 INFO L309 CfgBuilder]: Removed 31 assume(true) statements. [2023-11-29 03:47:17,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:47:17 BoogieIcfgContainer [2023-11-29 03:47:17,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:47:17,362 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:47:17,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:47:17,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:47:17,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:47:08" (1/3) ... [2023-11-29 03:47:17,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f50a5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:47:17, skipping insertion in model container [2023-11-29 03:47:17,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:09" (2/3) ... [2023-11-29 03:47:17,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f50a5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:47:17, skipping insertion in model container [2023-11-29 03:47:17,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:47:17" (3/3) ... [2023-11-29 03:47:17,368 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test1-1.i [2023-11-29 03:47:17,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:47:17,389 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 03:47:17,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:47:17,473 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;@f06e4d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:47:17,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 03:47:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 98 states have (on average 1.663265306122449) internal successors, (163), 100 states have internal predecessors, (163), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:47:17,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 03:47:17,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:17,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:17,487 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:17,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:17,493 INFO L85 PathProgramCache]: Analyzing trace with hash 431834683, now seen corresponding path program 1 times [2023-11-29 03:47:17,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:17,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353030829] [2023-11-29 03:47:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:17,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:17,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:17,509 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:17,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 03:47:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:17,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:47:17,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:17,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:17,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:17,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:17,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353030829] [2023-11-29 03:47:17,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353030829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:17,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:17,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:47:17,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153105559] [2023-11-29 03:47:17,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:17,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:47:17,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:17,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:47:17,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:47:17,763 INFO L87 Difference]: Start difference. First operand has 105 states, 98 states have (on average 1.663265306122449) internal successors, (163), 100 states have internal predecessors, (163), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:17,989 INFO L93 Difference]: Finished difference Result 193 states and 246 transitions. [2023-11-29 03:47:17,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:47:17,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 03:47:17,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:18,000 INFO L225 Difference]: With dead ends: 193 [2023-11-29 03:47:18,000 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 03:47:18,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:47:18,005 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 108 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:18,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 274 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:47:18,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 03:47:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 104. [2023-11-29 03:47:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 98 states have (on average 1.2755102040816326) internal successors, (125), 99 states have internal predecessors, (125), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:47:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2023-11-29 03:47:18,048 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 8 [2023-11-29 03:47:18,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:18,048 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2023-11-29 03:47:18,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2023-11-29 03:47:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:47:18,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:18,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:18,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:18,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:18,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:18,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:18,254 INFO L85 PathProgramCache]: Analyzing trace with hash 777524070, now seen corresponding path program 1 times [2023-11-29 03:47:18,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:18,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904706288] [2023-11-29 03:47:18,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:18,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:18,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:18,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:18,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 03:47:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:18,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:18,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:18,714 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 03:47:18,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:18,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:18,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904706288] [2023-11-29 03:47:18,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904706288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:18,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:18,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:47:18,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297421839] [2023-11-29 03:47:18,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:18,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:18,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:18,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:18,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:18,720 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:18,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:18,894 INFO L93 Difference]: Finished difference Result 108 states and 127 transitions. [2023-11-29 03:47:18,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:18,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2023-11-29 03:47:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:18,897 INFO L225 Difference]: With dead ends: 108 [2023-11-29 03:47:18,897 INFO L226 Difference]: Without dead ends: 108 [2023-11-29 03:47:18,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:18,899 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 36 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:18,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 270 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:47:18,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-29 03:47:18,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2023-11-29 03:47:18,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.188118811881188) internal successors, (120), 102 states have internal predecessors, (120), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:47:18,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 126 transitions. [2023-11-29 03:47:18,910 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 126 transitions. Word has length 63 [2023-11-29 03:47:18,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:18,910 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 126 transitions. [2023-11-29 03:47:18,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:18,911 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 126 transitions. [2023-11-29 03:47:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:47:18,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:18,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:18,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 03:47:19,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:19,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:19,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash 963109210, now seen corresponding path program 1 times [2023-11-29 03:47:19,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:19,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620718362] [2023-11-29 03:47:19,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:19,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:19,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:19,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:19,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 03:47:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:19,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:19,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:19,839 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 03:47:19,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:19,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:19,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620718362] [2023-11-29 03:47:19,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620718362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:19,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:19,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:47:19,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508539331] [2023-11-29 03:47:19,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:19,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:47:19,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:19,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:47:19,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:47:19,843 INFO L87 Difference]: Start difference. First operand 107 states and 126 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:20,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:20,519 INFO L93 Difference]: Finished difference Result 149 states and 172 transitions. [2023-11-29 03:47:20,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:47:20,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2023-11-29 03:47:20,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:20,527 INFO L225 Difference]: With dead ends: 149 [2023-11-29 03:47:20,527 INFO L226 Difference]: Without dead ends: 149 [2023-11-29 03:47:20,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:47:20,528 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 11 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:20,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 215 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:47:20,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-29 03:47:20,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-11-29 03:47:20,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 143 states have (on average 1.1608391608391608) internal successors, (166), 144 states have internal predecessors, (166), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:47:20,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 172 transitions. [2023-11-29 03:47:20,540 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 172 transitions. Word has length 63 [2023-11-29 03:47:20,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:20,541 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 172 transitions. [2023-11-29 03:47:20,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:20,541 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 172 transitions. [2023-11-29 03:47:20,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 03:47:20,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:20,544 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:20,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 03:47:20,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:20,745 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:20,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:20,746 INFO L85 PathProgramCache]: Analyzing trace with hash 500515693, now seen corresponding path program 1 times [2023-11-29 03:47:20,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:20,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32485227] [2023-11-29 03:47:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:20,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:20,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:20,749 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:20,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 03:47:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:21,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:21,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:21,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:21,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:21,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32485227] [2023-11-29 03:47:21,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32485227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:21,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:21,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:47:21,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555528617] [2023-11-29 03:47:21,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:21,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:21,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:21,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:21,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:21,212 INFO L87 Difference]: Start difference. First operand 149 states and 172 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:47:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:21,282 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2023-11-29 03:47:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:21,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2023-11-29 03:47:21,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:21,286 INFO L225 Difference]: With dead ends: 151 [2023-11-29 03:47:21,286 INFO L226 Difference]: Without dead ends: 151 [2023-11-29 03:47:21,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:21,287 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:21,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 338 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:47:21,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-29 03:47:21,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-29 03:47:21,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 144 states have (on average 1.1666666666666667) internal successors, (168), 146 states have internal predecessors, (168), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:47:21,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 175 transitions. [2023-11-29 03:47:21,300 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 175 transitions. Word has length 76 [2023-11-29 03:47:21,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:21,300 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 175 transitions. [2023-11-29 03:47:21,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:47:21,301 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 175 transitions. [2023-11-29 03:47:21,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 03:47:21,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:21,303 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:21,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 03:47:21,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:21,509 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:21,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:21,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1561925481, now seen corresponding path program 1 times [2023-11-29 03:47:21,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:21,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909597857] [2023-11-29 03:47:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:21,512 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:21,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:21,513 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:21,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 03:47:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:22,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:47:22,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:47:22,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 03:47:22,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:22,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909597857] [2023-11-29 03:47:22,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909597857] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:22,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:22,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:47:22,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437721471] [2023-11-29 03:47:22,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:22,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:47:22,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:22,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:47:22,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:47:22,148 INFO L87 Difference]: Start difference. First operand 151 states and 175 transitions. Second operand has 8 states, 6 states have (on average 13.333333333333334) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:22,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:22,407 INFO L93 Difference]: Finished difference Result 160 states and 189 transitions. [2023-11-29 03:47:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:47:22,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.333333333333334) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 78 [2023-11-29 03:47:22,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:22,409 INFO L225 Difference]: With dead ends: 160 [2023-11-29 03:47:22,410 INFO L226 Difference]: Without dead ends: 160 [2023-11-29 03:47:22,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:47:22,411 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 6 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:22,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 339 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:47:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-29 03:47:22,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2023-11-29 03:47:22,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 151 states have (on average 1.1986754966887416) internal successors, (181), 153 states have internal predecessors, (181), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:47:22,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 188 transitions. [2023-11-29 03:47:22,421 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 188 transitions. Word has length 78 [2023-11-29 03:47:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:22,422 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 188 transitions. [2023-11-29 03:47:22,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.333333333333334) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:22,422 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 188 transitions. [2023-11-29 03:47:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 03:47:22,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:22,424 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:22,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 03:47:22,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:22,630 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:22,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:22,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1779995475, now seen corresponding path program 2 times [2023-11-29 03:47:22,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:22,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457241547] [2023-11-29 03:47:22,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:47:22,632 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:22,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:22,633 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:22,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 03:47:23,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:47:23,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:47:23,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:47:23,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 03:47:23,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:23,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:23,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457241547] [2023-11-29 03:47:23,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457241547] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:23,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:23,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 03:47:23,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808871173] [2023-11-29 03:47:23,414 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:23,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:47:23,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:23,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:47:23,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:47:23,416 INFO L87 Difference]: Start difference. First operand 159 states and 188 transitions. Second operand has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:24,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:24,276 INFO L93 Difference]: Finished difference Result 174 states and 210 transitions. [2023-11-29 03:47:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 03:47:24,278 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 82 [2023-11-29 03:47:24,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:24,280 INFO L225 Difference]: With dead ends: 174 [2023-11-29 03:47:24,280 INFO L226 Difference]: Without dead ends: 172 [2023-11-29 03:47:24,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:47:24,282 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 13 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:24,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1002 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:47:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-29 03:47:24,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2023-11-29 03:47:24,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 160 states have (on average 1.20625) internal successors, (193), 162 states have internal predecessors, (193), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:47:24,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 200 transitions. [2023-11-29 03:47:24,294 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 200 transitions. Word has length 82 [2023-11-29 03:47:24,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:24,294 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 200 transitions. [2023-11-29 03:47:24,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:24,295 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 200 transitions. [2023-11-29 03:47:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 03:47:24,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:24,297 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:24,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 03:47:24,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:24,502 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:24,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:24,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1929637001, now seen corresponding path program 3 times [2023-11-29 03:47:24,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:24,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687136498] [2023-11-29 03:47:24,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:47:24,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:24,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:24,504 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:24,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 03:47:24,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:47:24,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:47:24,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:47:24,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-29 03:47:25,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:25,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687136498] [2023-11-29 03:47:25,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687136498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:25,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:25,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:47:25,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544671704] [2023-11-29 03:47:25,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:25,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:25,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:25,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:25,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:25,069 INFO L87 Difference]: Start difference. First operand 168 states and 200 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:47:29,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:47:33,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:47:35,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:35,256 INFO L93 Difference]: Finished difference Result 169 states and 200 transitions. [2023-11-29 03:47:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:47:35,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2023-11-29 03:47:35,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:35,261 INFO L225 Difference]: With dead ends: 169 [2023-11-29 03:47:35,261 INFO L226 Difference]: Without dead ends: 169 [2023-11-29 03:47:35,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:35,262 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 141 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:35,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 178 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2023-11-29 03:47:35,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-29 03:47:35,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2023-11-29 03:47:35,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 161 states have (on average 1.1987577639751552) internal successors, (193), 163 states have internal predecessors, (193), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:47:35,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 200 transitions. [2023-11-29 03:47:35,269 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 200 transitions. Word has length 91 [2023-11-29 03:47:35,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:35,269 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 200 transitions. [2023-11-29 03:47:35,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:47:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 200 transitions. [2023-11-29 03:47:35,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 03:47:35,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:35,271 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:35,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 03:47:35,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:35,472 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:35,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:35,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1390896055, now seen corresponding path program 1 times [2023-11-29 03:47:35,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:35,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313449518] [2023-11-29 03:47:35,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:35,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:35,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:35,474 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:35,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 03:47:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:35,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:47:35,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 69 proven. 55 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:47:36,206 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 1 proven. 122 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 03:47:36,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:36,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313449518] [2023-11-29 03:47:36,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313449518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:36,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:36,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 03:47:36,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277549863] [2023-11-29 03:47:36,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:36,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 03:47:36,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:36,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 03:47:36,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:47:36,969 INFO L87 Difference]: Start difference. First operand 169 states and 200 transitions. Second operand has 26 states, 24 states have (on average 4.125) internal successors, (99), 26 states have internal predecessors, (99), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:40,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:40,039 INFO L93 Difference]: Finished difference Result 199 states and 246 transitions. [2023-11-29 03:47:40,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 03:47:40,040 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.125) internal successors, (99), 26 states have internal predecessors, (99), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 92 [2023-11-29 03:47:40,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:40,043 INFO L225 Difference]: With dead ends: 199 [2023-11-29 03:47:40,043 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 03:47:40,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 03:47:40,046 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 25 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:40,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1448 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:47:40,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 03:47:40,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 187. [2023-11-29 03:47:40,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 179 states have (on average 1.2122905027932962) internal successors, (217), 181 states have internal predecessors, (217), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:47:40,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 224 transitions. [2023-11-29 03:47:40,056 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 224 transitions. Word has length 92 [2023-11-29 03:47:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:40,057 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 224 transitions. [2023-11-29 03:47:40,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.125) internal successors, (99), 26 states have internal predecessors, (99), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:40,057 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 224 transitions. [2023-11-29 03:47:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 03:47:40,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:40,059 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:40,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 03:47:40,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:40,262 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:40,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:40,262 INFO L85 PathProgramCache]: Analyzing trace with hash -820699273, now seen corresponding path program 2 times [2023-11-29 03:47:40,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:40,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959069813] [2023-11-29 03:47:40,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:47:40,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:40,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:40,264 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:40,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 03:47:40,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:47:40,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:47:40,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 03:47:40,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 279 proven. 253 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 03:47:41,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 1 proven. 530 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 03:47:43,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:43,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959069813] [2023-11-29 03:47:43,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959069813] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:43,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:43,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 03:47:43,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559386226] [2023-11-29 03:47:43,651 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:43,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 03:47:43,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:43,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 03:47:43,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 03:47:43,655 INFO L87 Difference]: Start difference. First operand 187 states and 224 transitions. Second operand has 50 states, 48 states have (on average 2.5625) internal successors, (123), 50 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:55,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:55,236 INFO L93 Difference]: Finished difference Result 245 states and 314 transitions. [2023-11-29 03:47:55,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 03:47:55,237 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.5625) internal successors, (123), 50 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 110 [2023-11-29 03:47:55,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:55,239 INFO L225 Difference]: With dead ends: 245 [2023-11-29 03:47:55,239 INFO L226 Difference]: Without dead ends: 243 [2023-11-29 03:47:55,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 03:47:55,244 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 48 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 2596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:55,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2889 Invalid, 2596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-29 03:47:55,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-29 03:47:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 221. [2023-11-29 03:47:55,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 213 states have (on average 1.2347417840375587) internal successors, (263), 215 states have internal predecessors, (263), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:47:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 270 transitions. [2023-11-29 03:47:55,256 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 270 transitions. Word has length 110 [2023-11-29 03:47:55,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:55,257 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 270 transitions. [2023-11-29 03:47:55,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.5625) internal successors, (123), 50 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:55,257 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 270 transitions. [2023-11-29 03:47:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 03:47:55,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:55,260 INFO L195 NwaCegarLoop]: trace histogram [67, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:55,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 03:47:55,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:55,461 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:55,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash 624065271, now seen corresponding path program 3 times [2023-11-29 03:47:55,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:55,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111483060] [2023-11-29 03:47:55,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:47:55,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:55,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:55,464 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:55,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 03:47:55,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:47:55,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:47:55,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:55,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2349 trivial. 0 not checked. [2023-11-29 03:47:56,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2349 trivial. 0 not checked. [2023-11-29 03:47:56,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:47:56,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111483060] [2023-11-29 03:47:56,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111483060] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:56,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:56,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 03:47:56,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326287451] [2023-11-29 03:47:56,333 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:56,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:47:56,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:47:56,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:47:56,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:47:56,335 INFO L87 Difference]: Start difference. First operand 221 states and 270 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:56,842 INFO L93 Difference]: Finished difference Result 426 states and 519 transitions. [2023-11-29 03:47:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:47:56,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 144 [2023-11-29 03:47:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:56,846 INFO L225 Difference]: With dead ends: 426 [2023-11-29 03:47:56,846 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 03:47:56,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:47:56,847 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 340 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:56,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 528 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:47:56,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 03:47:56,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2023-11-29 03:47:56,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 415 states have (on average 1.2120481927710844) internal successors, (503), 417 states have internal predecessors, (503), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 03:47:56,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 519 transitions. [2023-11-29 03:47:56,859 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 519 transitions. Word has length 144 [2023-11-29 03:47:56,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:56,859 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 519 transitions. [2023-11-29 03:47:56,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:47:56,859 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 519 transitions. [2023-11-29 03:47:56,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-11-29 03:47:56,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:56,867 INFO L195 NwaCegarLoop]: trace histogram [67, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:56,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 03:47:57,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:57,068 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:47:57,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:57,069 INFO L85 PathProgramCache]: Analyzing trace with hash -853357488, now seen corresponding path program 1 times [2023-11-29 03:47:57,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:47:57,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886169290] [2023-11-29 03:47:57,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:57,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:47:57,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:47:57,072 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:47:57,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 03:47:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:58,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 1938 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 03:47:59,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2677 backedges. 1193 proven. 276 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2023-11-29 03:47:59,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:48:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2677 backedges. 1193 proven. 276 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2023-11-29 03:48:02,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:48:02,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886169290] [2023-11-29 03:48:02,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886169290] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:48:02,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:48:02,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 03:48:02,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267506493] [2023-11-29 03:48:02,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:48:02,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 03:48:02,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:48:02,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 03:48:02,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 03:48:02,485 INFO L87 Difference]: Start difference. First operand 426 states and 519 transitions. Second operand has 52 states, 50 states have (on average 3.22) internal successors, (161), 52 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:48:14,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:48:14,161 INFO L93 Difference]: Finished difference Result 475 states and 665 transitions. [2023-11-29 03:48:14,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-29 03:48:14,163 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.22) internal successors, (161), 52 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 309 [2023-11-29 03:48:14,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:48:14,166 INFO L225 Difference]: With dead ends: 475 [2023-11-29 03:48:14,166 INFO L226 Difference]: Without dead ends: 475 [2023-11-29 03:48:14,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3563 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-29 03:48:14,172 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 54 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:48:14,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2977 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 03:48:14,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-29 03:48:14,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 451. [2023-11-29 03:48:14,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 440 states have (on average 1.2568181818181818) internal successors, (553), 442 states have internal predecessors, (553), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 03:48:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 569 transitions. [2023-11-29 03:48:14,203 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 569 transitions. Word has length 309 [2023-11-29 03:48:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:48:14,204 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 569 transitions. [2023-11-29 03:48:14,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.22) internal successors, (161), 52 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:48:14,205 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 569 transitions. [2023-11-29 03:48:14,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-29 03:48:14,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:48:14,212 INFO L195 NwaCegarLoop]: trace histogram [92, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:48:14,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 03:48:14,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:48:14,413 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:48:14,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:48:14,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1491151110, now seen corresponding path program 2 times [2023-11-29 03:48:14,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:48:14,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981156887] [2023-11-29 03:48:14,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:48:14,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:48:14,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:48:14,416 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:48:14,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 03:48:16,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:48:16,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:48:16,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 03:48:16,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:48:19,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4702 backedges. 2318 proven. 1176 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2023-11-29 03:48:19,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:48:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4702 backedges. 2318 proven. 1176 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2023-11-29 03:48:29,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:48:29,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981156887] [2023-11-29 03:48:29,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981156887] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:48:29,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:48:29,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 03:48:29,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611903539] [2023-11-29 03:48:29,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:48:29,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 03:48:29,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:48:29,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 03:48:29,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 03:48:29,140 INFO L87 Difference]: Start difference. First operand 451 states and 569 transitions. Second operand has 102 states, 100 states have (on average 2.11) internal successors, (211), 102 states have internal predecessors, (211), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:49:25,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:49:25,421 INFO L93 Difference]: Finished difference Result 558 states and 876 transitions. [2023-11-29 03:49:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 03:49:25,422 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.11) internal successors, (211), 102 states have internal predecessors, (211), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 334 [2023-11-29 03:49:25,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:49:25,428 INFO L225 Difference]: With dead ends: 558 [2023-11-29 03:49:25,428 INFO L226 Difference]: Without dead ends: 558 [2023-11-29 03:49:25,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 763 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 50.7s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 03:49:25,437 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 164 mSDsluCounter, 5502 mSDsCounter, 0 mSdLazyCounter, 7953 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 5615 SdHoareTripleChecker+Invalid, 8035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 7953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:49:25,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 5615 Invalid, 8035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 7953 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2023-11-29 03:49:25,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-29 03:49:25,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 505. [2023-11-29 03:49:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 494 states have (on average 1.3360323886639676) internal successors, (660), 496 states have internal predecessors, (660), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 03:49:25,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 676 transitions. [2023-11-29 03:49:25,483 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 676 transitions. Word has length 334 [2023-11-29 03:49:25,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:49:25,483 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 676 transitions. [2023-11-29 03:49:25,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.11) internal successors, (211), 102 states have internal predecessors, (211), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:49:25,484 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 676 transitions. [2023-11-29 03:49:25,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2023-11-29 03:49:25,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:49:25,488 INFO L195 NwaCegarLoop]: trace histogram [142, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:49:25,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-29 03:49:25,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:49:25,689 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 03:49:25,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:49:25,689 INFO L85 PathProgramCache]: Analyzing trace with hash 756672582, now seen corresponding path program 3 times [2023-11-29 03:49:25,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:49:25,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335770071] [2023-11-29 03:49:25,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:49:25,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:49:25,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:49:25,693 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:49:25,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef93d40-bfa1-4a96-b3d5-daae1bef9072/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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