./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/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_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/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_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:24:27,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:24:27,696 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 04:24:27,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:24:27,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:24:27,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:24:27,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:24:27,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:24:27,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:24:27,729 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:24:27,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:24:27,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:24:27,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:24:27,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:24:27,732 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:24:27,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:24:27,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:24:27,734 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:24:27,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:24:27,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:24:27,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:24:27,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:24:27,737 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:24:27,737 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:24:27,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:24:27,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:24:27,739 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:24:27,739 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:24:27,739 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:24:27,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:24:27,740 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:24:27,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:24:27,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:24:27,741 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:24:27,742 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:24:27,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:24:27,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:24:27,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:24:27,742 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:24:27,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:24:27,743 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:24:27,743 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:24:27,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:24:27,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:24:27,744 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_2593ad34-5c16-4e00-945c-2cb1256faf77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2023-11-29 04:24:27,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:24:27,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:24:28,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:24:28,002 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:24:28,002 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:24:28,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i [2023-11-29 04:24:30,766 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:24:31,042 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:24:31,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i [2023-11-29 04:24:31,060 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/data/945c66fd0/da75952a1d074784858aea4ccdb1c4bf/FLAG807ef81b0 [2023-11-29 04:24:31,070 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/data/945c66fd0/da75952a1d074784858aea4ccdb1c4bf [2023-11-29 04:24:31,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:24:31,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:24:31,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:24:31,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:24:31,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:24:31,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:24:31" (1/1) ... [2023-11-29 04:24:31,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7908a3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:31, skipping insertion in model container [2023-11-29 04:24:31,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:24:31" (1/1) ... [2023-11-29 04:24:31,153 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:24:31,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:24:31,665 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 04:24:31,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@fea1e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:31, skipping insertion in model container [2023-11-29 04:24:31,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:24:31,666 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 04:24:31,668 INFO L158 Benchmark]: Toolchain (without parser) took 593.42ms. Allocated memory is still 155.2MB. Free memory was 115.9MB in the beginning and 93.8MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 04:24:31,668 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:24:31,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.00ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 93.8MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 04:24:31,671 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 591.00ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 93.8MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/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_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/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_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:24:33,376 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:24:33,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 04:24:33,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:24:33,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:24:33,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:24:33,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:24:33,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:24:33,488 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:24:33,488 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:24:33,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:24:33,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:24:33,490 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:24:33,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:24:33,491 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:24:33,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:24:33,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:24:33,493 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:24:33,494 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:24:33,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:24:33,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:24:33,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:24:33,498 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:24:33,499 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:24:33,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:24:33,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:24:33,500 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:24:33,501 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:24:33,501 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:24:33,501 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:24:33,502 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:24:33,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:24:33,503 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:24:33,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:24:33,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:24:33,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:24:33,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:24:33,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:24:33,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:24:33,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:24:33,505 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:24:33,505 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:24:33,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:24:33,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:24:33,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:24:33,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:24:33,506 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:24:33,506 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_2593ad34-5c16-4e00-945c-2cb1256faf77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2023-11-29 04:24:33,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:24:33,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:24:33,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:24:33,808 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:24:33,808 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:24:33,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i [2023-11-29 04:24:36,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:24:36,855 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:24:36,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-3.i [2023-11-29 04:24:36,883 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/data/1917fbb90/63c9c30ea20a4e769b1fa59b5bed240f/FLAGf033ab1b2 [2023-11-29 04:24:36,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/data/1917fbb90/63c9c30ea20a4e769b1fa59b5bed240f [2023-11-29 04:24:36,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:24:36,901 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:24:36,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:24:36,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:24:36,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:24:36,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:24:36" (1/1) ... [2023-11-29 04:24:36,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a241276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:36, skipping insertion in model container [2023-11-29 04:24:36,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:24:36" (1/1) ... [2023-11-29 04:24:36,991 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:24:37,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:24:37,528 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 04:24:37,541 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:24:37,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:24:37,620 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:24:37,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:24:37,747 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:24:37,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37 WrapperNode [2023-11-29 04:24:37,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:24:37,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:24:37,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:24:37,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:24:37,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:37,791 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:37,858 INFO L138 Inliner]: procedures = 180, calls = 439, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1422 [2023-11-29 04:24:37,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:24:37,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:24:37,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:24:37,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:24:37,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:37,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:37,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:38,031 INFO L175 MemorySlicer]: Split 413 memory accesses to 4 slices as follows [2, 401, 5, 5]. 97 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 100 writes are split as follows [0, 98, 1, 1]. [2023-11-29 04:24:38,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:38,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:38,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:38,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:38,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:38,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:38,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:24:38,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:24:38,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:24:38,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:24:38,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (1/1) ... [2023-11-29 04:24:38,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:24:38,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:38,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:24:38,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:24:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 04:24:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 04:24:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 04:24:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 04:24:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 04:24:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 04:24:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 04:24:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 04:24:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 04:24:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 04:24:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 04:24:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 04:24:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 04:24:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 04:24:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 04:24:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 04:24:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 04:24:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:24:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:24:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 04:24:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 04:24:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 04:24:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 04:24:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 04:24:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 04:24:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 04:24:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 04:24:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:24:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 04:24:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 04:24:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 04:24:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 04:24:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:24:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 04:24:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 04:24:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 04:24:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:24:38,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:24:38,438 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:24:38,440 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:24:53,912 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:24:53,949 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:24:53,949 INFO L309 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-29 04:24:53,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:24:53 BoogieIcfgContainer [2023-11-29 04:24:53,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:24:53,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:24:53,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:24:53,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:24:53,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:24:36" (1/3) ... [2023-11-29 04:24:53,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f05bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:24:53, skipping insertion in model container [2023-11-29 04:24:53,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:24:37" (2/3) ... [2023-11-29 04:24:53,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f05bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:24:53, skipping insertion in model container [2023-11-29 04:24:53,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:24:53" (3/3) ... [2023-11-29 04:24:53,957 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test4-3.i [2023-11-29 04:24:53,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:24:53,972 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:24:54,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:24:54,022 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;@58bdf5e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:24:54,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:24:54,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 236 states have (on average 1.6694915254237288) internal successors, (394), 238 states have internal predecessors, (394), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:24:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 04:24:54,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:54,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 04:24:54,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:24:54,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:54,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1039095, now seen corresponding path program 1 times [2023-11-29 04:24:54,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:24:54,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287795226] [2023-11-29 04:24:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:54,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:24:54,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:24:54,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:24:54,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 04:24:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:54,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:24:54,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:54,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:24:54,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:54,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:24:54,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287795226] [2023-11-29 04:24:54,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287795226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:54,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:54,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:24:54,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799443000] [2023-11-29 04:24:54,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:54,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:24:54,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:24:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:24:54,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:54,357 INFO L87 Difference]: Start difference. First operand has 246 states, 236 states have (on average 1.6694915254237288) internal successors, (394), 238 states have internal predecessors, (394), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:24:58,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:02,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:03,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:03,501 INFO L93 Difference]: Finished difference Result 308 states and 403 transitions. [2023-11-29 04:25:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:25:03,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 04:25:03,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:03,514 INFO L225 Difference]: With dead ends: 308 [2023-11-29 04:25:03,514 INFO L226 Difference]: Without dead ends: 305 [2023-11-29 04:25:03,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:25:03,518 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 81 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:03,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 642 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2023-11-29 04:25:03,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-29 04:25:03,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 255. [2023-11-29 04:25:03,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 246 states have (on average 1.3048780487804879) internal successors, (321), 247 states have internal predecessors, (321), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:25:03,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 333 transitions. [2023-11-29 04:25:03,570 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 333 transitions. Word has length 3 [2023-11-29 04:25:03,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:03,571 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 333 transitions. [2023-11-29 04:25:03,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:03,571 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 333 transitions. [2023-11-29 04:25:03,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 04:25:03,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:03,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:03,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:03,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:03,773 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:03,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:03,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1036485316, now seen corresponding path program 1 times [2023-11-29 04:25:03,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:03,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126135592] [2023-11-29 04:25:03,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:03,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:03,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:03,776 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:03,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 04:25:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:03,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:25:03,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:04,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:04,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:25:04,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:04,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126135592] [2023-11-29 04:25:04,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126135592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:04,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:04,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:25:04,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130196548] [2023-11-29 04:25:04,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:04,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:25:04,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:04,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:25:04,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:25:04,025 INFO L87 Difference]: Start difference. First operand 255 states and 333 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:08,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:13,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:19,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:20,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:20,002 INFO L93 Difference]: Finished difference Result 428 states and 558 transitions. [2023-11-29 04:25:20,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:25:20,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 04:25:20,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:20,008 INFO L225 Difference]: With dead ends: 428 [2023-11-29 04:25:20,008 INFO L226 Difference]: Without dead ends: 428 [2023-11-29 04:25:20,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:25:20,009 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 244 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:20,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 854 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 3 Unknown, 0 Unchecked, 15.9s Time] [2023-11-29 04:25:20,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-11-29 04:25:20,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 375. [2023-11-29 04:25:20,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 363 states have (on average 1.2947658402203857) internal successors, (470), 364 states have internal predecessors, (470), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 04:25:20,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 488 transitions. [2023-11-29 04:25:20,032 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 488 transitions. Word has length 10 [2023-11-29 04:25:20,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:20,033 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 488 transitions. [2023-11-29 04:25:20,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 488 transitions. [2023-11-29 04:25:20,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:25:20,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:20,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:20,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 04:25:20,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:20,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:20,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:20,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1862150271, now seen corresponding path program 1 times [2023-11-29 04:25:20,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:20,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166925844] [2023-11-29 04:25:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:20,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:20,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:20,237 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:20,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 04:25:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:20,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:25:20,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 04:25:20,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:25:20,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:20,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166925844] [2023-11-29 04:25:20,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166925844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:20,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:20,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:25:20,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389742911] [2023-11-29 04:25:20,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:20,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:25:20,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:20,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:25:20,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:25:20,473 INFO L87 Difference]: Start difference. First operand 375 states and 488 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:21,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:21,378 INFO L93 Difference]: Finished difference Result 426 states and 554 transitions. [2023-11-29 04:25:21,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:25:21,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-29 04:25:21,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:21,388 INFO L225 Difference]: With dead ends: 426 [2023-11-29 04:25:21,388 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 04:25:21,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:25:21,389 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 127 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:21,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 585 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:25:21,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 04:25:21,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 373. [2023-11-29 04:25:21,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 361 states have (on average 1.290858725761773) internal successors, (466), 362 states have internal predecessors, (466), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 04:25:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 484 transitions. [2023-11-29 04:25:21,404 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 484 transitions. Word has length 25 [2023-11-29 04:25:21,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:21,404 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 484 transitions. [2023-11-29 04:25:21,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:21,404 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 484 transitions. [2023-11-29 04:25:21,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:25:21,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:21,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:21,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:21,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:21,607 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:21,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:21,607 INFO L85 PathProgramCache]: Analyzing trace with hash 743873283, now seen corresponding path program 1 times [2023-11-29 04:25:21,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:21,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44286325] [2023-11-29 04:25:21,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:21,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:21,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:21,609 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:21,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 04:25:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:21,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:25:21,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:21,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:25:21,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:25:21,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:21,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44286325] [2023-11-29 04:25:21,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44286325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:21,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:21,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:25:21,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952667946] [2023-11-29 04:25:21,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:21,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:25:21,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:21,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:25:21,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:25:21,838 INFO L87 Difference]: Start difference. First operand 373 states and 484 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:26,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:30,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:35,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:39,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:41,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:25:45,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:45,934 INFO L93 Difference]: Finished difference Result 426 states and 553 transitions. [2023-11-29 04:25:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:25:45,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-29 04:25:45,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:45,940 INFO L225 Difference]: With dead ends: 426 [2023-11-29 04:25:45,940 INFO L226 Difference]: Without dead ends: 420 [2023-11-29 04:25:45,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:45,941 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 133 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:45,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1143 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 4 Unknown, 0 Unchecked, 24.0s Time] [2023-11-29 04:25:45,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-11-29 04:25:45,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 367. [2023-11-29 04:25:45,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 355 states have (on average 1.2929577464788733) internal successors, (459), 356 states have internal predecessors, (459), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 04:25:45,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 477 transitions. [2023-11-29 04:25:45,956 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 477 transitions. Word has length 25 [2023-11-29 04:25:45,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:45,956 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 477 transitions. [2023-11-29 04:25:45,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:25:45,956 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 477 transitions. [2023-11-29 04:25:45,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:25:45,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:45,963 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:45,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 04:25:46,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:46,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:46,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:46,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1373895433, now seen corresponding path program 1 times [2023-11-29 04:25:46,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:46,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305561021] [2023-11-29 04:25:46,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:46,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:46,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:46,167 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:46,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 04:25:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:46,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:25:46,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:47,023 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 04:25:47,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:25:47,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:47,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305561021] [2023-11-29 04:25:47,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305561021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:47,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:47,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:25:47,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098505132] [2023-11-29 04:25:47,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:47,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:25:47,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:47,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:25:47,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:25:47,027 INFO L87 Difference]: Start difference. First operand 367 states and 477 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:25:47,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:47,153 INFO L93 Difference]: Finished difference Result 375 states and 469 transitions. [2023-11-29 04:25:47,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:25:47,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 142 [2023-11-29 04:25:47,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:47,156 INFO L225 Difference]: With dead ends: 375 [2023-11-29 04:25:47,156 INFO L226 Difference]: Without dead ends: 375 [2023-11-29 04:25:47,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:25:47,158 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 52 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:47,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 824 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:25:47,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-29 04:25:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2023-11-29 04:25:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 361 states have (on average 1.2437673130193905) internal successors, (449), 362 states have internal predecessors, (449), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 04:25:47,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 467 transitions. [2023-11-29 04:25:47,170 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 467 transitions. Word has length 142 [2023-11-29 04:25:47,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:47,171 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 467 transitions. [2023-11-29 04:25:47,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:25:47,171 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 467 transitions. [2023-11-29 04:25:47,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:25:47,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:47,174 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:47,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:25:47,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:47,377 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:47,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:47,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1768571995, now seen corresponding path program 1 times [2023-11-29 04:25:47,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:47,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957692255] [2023-11-29 04:25:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:47,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:47,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:47,380 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:47,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 04:25:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:48,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:25:48,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 04:25:48,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:25:48,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:48,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957692255] [2023-11-29 04:25:48,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957692255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:48,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:48,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:25:48,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164488047] [2023-11-29 04:25:48,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:48,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:25:48,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:48,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:25:48,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:25:48,161 INFO L87 Difference]: Start difference. First operand 373 states and 467 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:25:48,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:48,265 INFO L93 Difference]: Finished difference Result 361 states and 447 transitions. [2023-11-29 04:25:48,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:25:48,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 142 [2023-11-29 04:25:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:48,268 INFO L225 Difference]: With dead ends: 361 [2023-11-29 04:25:48,268 INFO L226 Difference]: Without dead ends: 361 [2023-11-29 04:25:48,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:25:48,269 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 15 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:48,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 826 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:25:48,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-29 04:25:48,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2023-11-29 04:25:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 349 states have (on average 1.2292263610315186) internal successors, (429), 350 states have internal predecessors, (429), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 04:25:48,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 447 transitions. [2023-11-29 04:25:48,282 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 447 transitions. Word has length 142 [2023-11-29 04:25:48,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:48,282 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 447 transitions. [2023-11-29 04:25:48,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:25:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 447 transitions. [2023-11-29 04:25:48,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:25:48,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:48,285 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:48,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 04:25:48,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:48,494 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:48,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:48,494 INFO L85 PathProgramCache]: Analyzing trace with hash -2066695763, now seen corresponding path program 1 times [2023-11-29 04:25:48,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:48,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423988606] [2023-11-29 04:25:48,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:48,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:48,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:48,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:48,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 04:25:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:49,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:25:49,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 04:25:49,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:25:49,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:49,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423988606] [2023-11-29 04:25:49,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423988606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:49,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:49,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:25:49,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972206601] [2023-11-29 04:25:49,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:49,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:25:49,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:49,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:25:49,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:25:49,283 INFO L87 Difference]: Start difference. First operand 361 states and 447 transitions. Second operand has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:25:49,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:49,362 INFO L93 Difference]: Finished difference Result 363 states and 452 transitions. [2023-11-29 04:25:49,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:25:49,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 142 [2023-11-29 04:25:49,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:49,367 INFO L225 Difference]: With dead ends: 363 [2023-11-29 04:25:49,367 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 04:25:49,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:25:49,368 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 1 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:49,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 878 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:25:49,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 04:25:49,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2023-11-29 04:25:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 350 states have (on average 1.2314285714285715) internal successors, (431), 352 states have internal predecessors, (431), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 04:25:49,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 452 transitions. [2023-11-29 04:25:49,382 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 452 transitions. Word has length 142 [2023-11-29 04:25:49,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:49,382 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 452 transitions. [2023-11-29 04:25:49,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:25:49,383 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 452 transitions. [2023-11-29 04:25:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 04:25:49,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:49,385 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:49,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 04:25:49,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:49,586 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:49,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:49,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2018166227, now seen corresponding path program 1 times [2023-11-29 04:25:49,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:49,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313138864] [2023-11-29 04:25:49,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:49,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:49,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:49,588 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:49,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 04:25:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:50,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:25:50,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:50,371 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 04:25:50,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:50,478 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:25:50,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:50,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313138864] [2023-11-29 04:25:50,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313138864] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:50,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:50,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:25:50,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899935925] [2023-11-29 04:25:50,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:50,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:25:50,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:50,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:25:50,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:50,481 INFO L87 Difference]: Start difference. First operand 363 states and 452 transitions. Second operand has 8 states, 6 states have (on average 23.0) internal successors, (138), 8 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:25:50,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:50,732 INFO L93 Difference]: Finished difference Result 372 states and 468 transitions. [2023-11-29 04:25:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:25:50,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 23.0) internal successors, (138), 8 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 146 [2023-11-29 04:25:50,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:50,735 INFO L225 Difference]: With dead ends: 372 [2023-11-29 04:25:50,736 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 04:25:50,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 284 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 04:25:50,737 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 7 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:50,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1164 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:25:50,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 04:25:50,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2023-11-29 04:25:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 357 states have (on average 1.2436974789915967) internal successors, (444), 359 states have internal predecessors, (444), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 04:25:50,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 465 transitions. [2023-11-29 04:25:50,748 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 465 transitions. Word has length 146 [2023-11-29 04:25:50,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:50,748 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 465 transitions. [2023-11-29 04:25:50,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 23.0) internal successors, (138), 8 states have internal predecessors, (138), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:25:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 465 transitions. [2023-11-29 04:25:50,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 04:25:50,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:50,750 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:50,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 04:25:50,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:50,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:50,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:50,951 INFO L85 PathProgramCache]: Analyzing trace with hash -835943251, now seen corresponding path program 2 times [2023-11-29 04:25:50,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:50,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906823470] [2023-11-29 04:25:50,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:25:50,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:50,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:50,953 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:50,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 04:25:51,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:25:51,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:51,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:25:51,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 62 proven. 10 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-29 04:25:51,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 1 proven. 68 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 04:25:52,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:52,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906823470] [2023-11-29 04:25:52,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906823470] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:52,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:52,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 04:25:52,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671209737] [2023-11-29 04:25:52,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:52,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:25:52,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:52,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:25:52,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:25:52,089 INFO L87 Difference]: Start difference. First operand 371 states and 465 transitions. Second operand has 14 states, 12 states have (on average 12.0) internal successors, (144), 14 states have internal predecessors, (144), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:25:52,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:52,989 INFO L93 Difference]: Finished difference Result 386 states and 495 transitions. [2023-11-29 04:25:52,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:25:52,990 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 12.0) internal successors, (144), 14 states have internal predecessors, (144), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 154 [2023-11-29 04:25:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:52,993 INFO L225 Difference]: With dead ends: 386 [2023-11-29 04:25:52,993 INFO L226 Difference]: Without dead ends: 384 [2023-11-29 04:25:52,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 294 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 04:25:52,994 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 13 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:52,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1746 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:25:52,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-29 04:25:53,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 380. [2023-11-29 04:25:53,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 366 states have (on average 1.2459016393442623) internal successors, (456), 368 states have internal predecessors, (456), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 04:25:53,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 477 transitions. [2023-11-29 04:25:53,005 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 477 transitions. Word has length 154 [2023-11-29 04:25:53,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:53,005 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 477 transitions. [2023-11-29 04:25:53,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 12.0) internal successors, (144), 14 states have internal predecessors, (144), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:25:53,006 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 477 transitions. [2023-11-29 04:25:53,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 04:25:53,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:53,008 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:53,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:53,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:53,209 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:53,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:53,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1650703633, now seen corresponding path program 3 times [2023-11-29 04:25:53,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:53,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515398855] [2023-11-29 04:25:53,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:25:53,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:53,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:53,211 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:53,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 04:25:54,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 04:25:54,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:54,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:25:54,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 172 proven. 15 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2023-11-29 04:25:54,997 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 172 proven. 15 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2023-11-29 04:25:55,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:55,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515398855] [2023-11-29 04:25:55,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515398855] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:55,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:55,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 04:25:55,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017793228] [2023-11-29 04:25:55,340 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:55,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:25:55,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:55,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:25:55,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:25:55,341 INFO L87 Difference]: Start difference. First operand 380 states and 477 transitions. Second operand has 16 states, 14 states have (on average 10.214285714285714) internal successors, (143), 16 states have internal predecessors, (143), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 04:25:56,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:56,353 INFO L93 Difference]: Finished difference Result 393 states and 506 transitions. [2023-11-29 04:25:56,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:25:56,354 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.214285714285714) internal successors, (143), 16 states have internal predecessors, (143), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 172 [2023-11-29 04:25:56,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:56,358 INFO L225 Difference]: With dead ends: 393 [2023-11-29 04:25:56,358 INFO L226 Difference]: Without dead ends: 392 [2023-11-29 04:25:56,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=288, Invalid=524, Unknown=0, NotChecked=0, Total=812 [2023-11-29 04:25:56,359 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 18 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:56,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2007 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:25:56,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-11-29 04:25:56,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 387. [2023-11-29 04:25:56,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 373 states have (on average 1.257372654155496) internal successors, (469), 375 states have internal predecessors, (469), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 04:25:56,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 490 transitions. [2023-11-29 04:25:56,373 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 490 transitions. Word has length 172 [2023-11-29 04:25:56,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:56,374 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 490 transitions. [2023-11-29 04:25:56,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.214285714285714) internal successors, (143), 16 states have internal predecessors, (143), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 04:25:56,374 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 490 transitions. [2023-11-29 04:25:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 04:25:56,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:56,377 INFO L195 NwaCegarLoop]: trace histogram [44, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:56,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 04:25:56,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:56,577 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:25:56,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:56,578 INFO L85 PathProgramCache]: Analyzing trace with hash -446497619, now seen corresponding path program 4 times [2023-11-29 04:25:56,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:25:56,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97794531] [2023-11-29 04:25:56,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:25:56,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:25:56,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:25:56,580 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:25:56,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 04:25:57,531 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:25:57,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:57,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:25:57,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 414 proven. 55 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2023-11-29 04:25:57,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:58,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 1 proven. 465 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2023-11-29 04:25:58,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:25:58,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97794531] [2023-11-29 04:25:58,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97794531] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:58,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:58,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 04:25:58,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078216074] [2023-11-29 04:25:58,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:58,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 04:25:58,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:25:58,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 04:25:58,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:25:58,509 INFO L87 Difference]: Start difference. First operand 387 states and 490 transitions. Second operand has 26 states, 24 states have (on average 6.5) internal successors, (156), 26 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:26:01,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:01,240 INFO L93 Difference]: Finished difference Result 411 states and 544 transitions. [2023-11-29 04:26:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 04:26:01,241 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 6.5) internal successors, (156), 26 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 186 [2023-11-29 04:26:01,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:01,244 INFO L225 Difference]: With dead ends: 411 [2023-11-29 04:26:01,244 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 04:26:01,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=998, Invalid=2194, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 04:26:01,246 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 23 mSDsluCounter, 4056 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4350 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:01,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4350 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:26:01,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 04:26:01,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 399. [2023-11-29 04:26:01,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 385 states have (on average 1.2493506493506494) internal successors, (481), 387 states have internal predecessors, (481), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 04:26:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 502 transitions. [2023-11-29 04:26:01,263 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 502 transitions. Word has length 186 [2023-11-29 04:26:01,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:01,264 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 502 transitions. [2023-11-29 04:26:01,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 6.5) internal successors, (156), 26 states have internal predecessors, (156), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:26:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 502 transitions. [2023-11-29 04:26:01,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-29 04:26:01,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:01,267 INFO L195 NwaCegarLoop]: trace histogram [68, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:01,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 04:26:01,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:01,468 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:01,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1227068077, now seen corresponding path program 5 times [2023-11-29 04:26:01,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:26:01,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555079384] [2023-11-29 04:26:01,470 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:26:01,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:01,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:26:01,471 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:26:01,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 04:26:02,038 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-11-29 04:26:02,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:02,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:26:02,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:02,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2569 backedges. 1605 proven. 78 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2023-11-29 04:26:02,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:03,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2569 backedges. 301 proven. 548 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2023-11-29 04:26:03,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:26:03,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555079384] [2023-11-29 04:26:03,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555079384] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:26:03,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:26:03,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2023-11-29 04:26:03,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548486069] [2023-11-29 04:26:03,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:03,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 04:26:03,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:26:03,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 04:26:03,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:26:03,252 INFO L87 Difference]: Start difference. First operand 399 states and 502 transitions. Second operand has 30 states, 28 states have (on average 5.714285714285714) internal successors, (160), 30 states have internal predecessors, (160), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:26:06,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:06,661 INFO L93 Difference]: Finished difference Result 425 states and 563 transitions. [2023-11-29 04:26:06,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 04:26:06,661 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 5.714285714285714) internal successors, (160), 30 states have internal predecessors, (160), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 210 [2023-11-29 04:26:06,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:06,664 INFO L225 Difference]: With dead ends: 425 [2023-11-29 04:26:06,664 INFO L226 Difference]: Without dead ends: 424 [2023-11-29 04:26:06,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1065, Invalid=2127, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 04:26:06,666 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 31 mSDsluCounter, 3718 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4009 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:06,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4009 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:26:06,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-11-29 04:26:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 413. [2023-11-29 04:26:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 399 states have (on average 1.2731829573934836) internal successors, (508), 401 states have internal predecessors, (508), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 04:26:06,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 529 transitions. [2023-11-29 04:26:06,680 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 529 transitions. Word has length 210 [2023-11-29 04:26:06,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:06,680 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 529 transitions. [2023-11-29 04:26:06,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 5.714285714285714) internal successors, (160), 30 states have internal predecessors, (160), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:26:06,681 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 529 transitions. [2023-11-29 04:26:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-29 04:26:06,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:06,683 INFO L195 NwaCegarLoop]: trace histogram [96, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:06,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 04:26:06,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:06,883 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:06,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash -983547475, now seen corresponding path program 6 times [2023-11-29 04:26:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:26:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598497493] [2023-11-29 04:26:06,885 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 04:26:06,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:06,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:26:06,886 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:26:06,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 04:26:16,008 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2023-11-29 04:26:16,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:16,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 04:26:16,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 3131 proven. 351 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2023-11-29 04:26:16,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 623 proven. 1703 refuted. 0 times theorem prover too weak. 2637 trivial. 0 not checked. [2023-11-29 04:26:19,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:26:19,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598497493] [2023-11-29 04:26:19,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598497493] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:26:19,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:26:19,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 58 [2023-11-29 04:26:19,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654362670] [2023-11-29 04:26:19,954 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:19,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-11-29 04:26:19,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:26:19,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-11-29 04:26:19,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=2409, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 04:26:19,957 INFO L87 Difference]: Start difference. First operand 413 states and 529 transitions. Second operand has 58 states, 56 states have (on average 3.357142857142857) internal successors, (188), 58 states have internal predecessors, (188), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:26:35,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:35,997 INFO L93 Difference]: Finished difference Result 476 states and 679 transitions. [2023-11-29 04:26:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-11-29 04:26:35,998 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 56 states have (on average 3.357142857142857) internal successors, (188), 58 states have internal predecessors, (188), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 238 [2023-11-29 04:26:35,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:36,001 INFO L225 Difference]: With dead ends: 476 [2023-11-29 04:26:36,001 INFO L226 Difference]: Without dead ends: 474 [2023-11-29 04:26:36,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=4089, Invalid=8567, Unknown=0, NotChecked=0, Total=12656 [2023-11-29 04:26:36,006 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 63 mSDsluCounter, 7722 mSDsCounter, 0 mSdLazyCounter, 3358 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 8013 SdHoareTripleChecker+Invalid, 3409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 3358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:36,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 8013 Invalid, 3409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 3358 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-29 04:26:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-29 04:26:36,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 446. [2023-11-29 04:26:36,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 432 states have (on average 1.3240740740740742) internal successors, (572), 434 states have internal predecessors, (572), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 04:26:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 593 transitions. [2023-11-29 04:26:36,025 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 593 transitions. Word has length 238 [2023-11-29 04:26:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:36,025 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 593 transitions. [2023-11-29 04:26:36,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 56 states have (on average 3.357142857142857) internal successors, (188), 58 states have internal predecessors, (188), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:26:36,026 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 593 transitions. [2023-11-29 04:26:36,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-29 04:26:36,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:36,028 INFO L195 NwaCegarLoop]: trace histogram [152, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:36,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 04:26:36,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:36,229 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:36,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:36,229 INFO L85 PathProgramCache]: Analyzing trace with hash 216235949, now seen corresponding path program 7 times [2023-11-29 04:26:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:26:36,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873893615] [2023-11-29 04:26:36,230 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 04:26:36,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:36,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:26:36,231 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:26:36,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 04:26:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:37,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:26:37,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:38,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12103 backedges. 3066 proven. 253 refuted. 0 times theorem prover too weak. 8784 trivial. 0 not checked. [2023-11-29 04:26:38,280 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:40,114 INFO L134 CoverageAnalysis]: Checked inductivity of 12103 backedges. 1 proven. 3315 refuted. 0 times theorem prover too weak. 8787 trivial. 0 not checked. [2023-11-29 04:26:40,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:26:40,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873893615] [2023-11-29 04:26:40,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873893615] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:26:40,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:26:40,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 04:26:40,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625869066] [2023-11-29 04:26:40,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:40,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 04:26:40,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:26:40,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 04:26:40,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 04:26:40,119 INFO L87 Difference]: Start difference. First operand 446 states and 593 transitions. Second operand has 50 states, 48 states have (on average 3.75) internal successors, (180), 50 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:26:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:50,334 INFO L93 Difference]: Finished difference Result 486 states and 690 transitions. [2023-11-29 04:26:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-11-29 04:26:50,335 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.75) internal successors, (180), 50 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 294 [2023-11-29 04:26:50,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:50,338 INFO L225 Difference]: With dead ends: 486 [2023-11-29 04:26:50,339 INFO L226 Difference]: Without dead ends: 484 [2023-11-29 04:26:50,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1340 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=3742, Invalid=9140, Unknown=0, NotChecked=0, Total=12882 [2023-11-29 04:26:50,343 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 46 mSDsluCounter, 6961 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 7255 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:50,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 7255 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3025 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 04:26:50,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-29 04:26:50,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 463. [2023-11-29 04:26:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 449 states have (on average 1.3028953229398663) internal successors, (585), 451 states have internal predecessors, (585), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 04:26:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 606 transitions. [2023-11-29 04:26:50,361 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 606 transitions. Word has length 294 [2023-11-29 04:26:50,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:50,362 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 606 transitions. [2023-11-29 04:26:50,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.75) internal successors, (180), 50 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:26:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 606 transitions. [2023-11-29 04:26:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-11-29 04:26:50,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:50,365 INFO L195 NwaCegarLoop]: trace histogram [196, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:50,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 04:26:50,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:50,565 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:26:50,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:50,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1642619565, now seen corresponding path program 8 times [2023-11-29 04:26:50,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:26:50,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970923712] [2023-11-29 04:26:50,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:26:50,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:26:50,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:26:50,568 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:26:50,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 04:26:53,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:26:53,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:53,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 2921 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-29 04:26:53,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 19913 backedges. 12485 proven. 1485 refuted. 0 times theorem prover too weak. 5943 trivial. 0 not checked. [2023-11-29 04:26:55,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:05,641 INFO L134 CoverageAnalysis]: Checked inductivity of 19913 backedges. 2477 proven. 6987 refuted. 0 times theorem prover too weak. 10449 trivial. 0 not checked. [2023-11-29 04:27:05,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:05,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970923712] [2023-11-29 04:27:05,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970923712] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:05,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:05,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 114 [2023-11-29 04:27:05,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032629519] [2023-11-29 04:27:05,642 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:05,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2023-11-29 04:27:05,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:05,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2023-11-29 04:27:05,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3361, Invalid=9521, Unknown=0, NotChecked=0, Total=12882 [2023-11-29 04:27:05,647 INFO L87 Difference]: Start difference. First operand 463 states and 606 transitions. Second operand has 114 states, 112 states have (on average 2.1785714285714284) internal successors, (244), 114 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:28:18,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:18,328 INFO L93 Difference]: Finished difference Result 591 states and 923 transitions. [2023-11-29 04:28:18,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2023-11-29 04:28:18,329 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 112 states have (on average 2.1785714285714284) internal successors, (244), 114 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 338 [2023-11-29 04:28:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:18,332 INFO L225 Difference]: With dead ends: 591 [2023-11-29 04:28:18,332 INFO L226 Difference]: Without dead ends: 591 [2023-11-29 04:28:18,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8856 ImplicationChecksByTransitivity, 58.8s TimeCoverageRelationStatistics Valid=15787, Invalid=33719, Unknown=0, NotChecked=0, Total=49506 [2023-11-29 04:28:18,339 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 136 mSDsluCounter, 16422 mSDsCounter, 0 mSdLazyCounter, 13863 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 16715 SdHoareTripleChecker+Invalid, 14000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 13863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:18,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 16715 Invalid, 14000 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [137 Valid, 13863 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2023-11-29 04:28:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-11-29 04:28:18,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 529. [2023-11-29 04:28:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 515 states have (on average 1.3902912621359222) internal successors, (716), 517 states have internal predecessors, (716), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 04:28:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 737 transitions. [2023-11-29 04:28:18,363 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 737 transitions. Word has length 338 [2023-11-29 04:28:18,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:18,363 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 737 transitions. [2023-11-29 04:28:18,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 112 states have (on average 2.1785714285714284) internal successors, (244), 114 states have internal predecessors, (244), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:28:18,364 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 737 transitions. [2023-11-29 04:28:18,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-11-29 04:28:18,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:18,366 INFO L195 NwaCegarLoop]: trace histogram [308, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:28:18,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 04:28:18,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:28:18,567 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:28:18,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash -118301011, now seen corresponding path program 9 times [2023-11-29 04:28:18,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:28:18,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261039776] [2023-11-29 04:28:18,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:28:18,571 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:28:18,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:28:18,572 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:28:18,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2593ad34-5c16-4e00-945c-2cb1256faf77/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process