./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.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_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/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_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/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_37b47741-9310-46fc-832b-0635a0adab99/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 ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:55:28,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:55:28,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-28 23:55:28,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:55:28,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:55:28,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:55:28,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:55:28,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:55:28,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:55:28,618 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:55:28,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:55:28,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:55:28,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:55:28,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:55:28,620 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:55:28,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:55:28,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:55:28,622 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:55:28,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:55:28,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:55:28,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:55:28,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:55:28,625 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 23:55:28,626 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 23:55:28,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:55:28,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:55:28,627 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:55:28,627 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:55:28,628 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:55:28,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:55:28,628 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:55:28,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:55:28,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:55:28,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:55:28,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:55:28,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:28,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:55:28,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:55:28,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:55:28,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:55:28,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:55:28,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:55:28,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:55:28,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:55:28,632 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_37b47741-9310-46fc-832b-0635a0adab99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 [2023-11-28 23:55:28,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:55:28,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:55:28,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:55:28,868 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:55:28,868 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:55:28,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2023-11-28 23:55:31,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:55:31,937 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:55:31,938 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2023-11-28 23:55:31,958 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/data/d859e3409/8cd5d5bd77304912894ded6785825982/FLAGba869b93d [2023-11-28 23:55:31,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/data/d859e3409/8cd5d5bd77304912894ded6785825982 [2023-11-28 23:55:31,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:55:31,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:55:31,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:31,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:55:31,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:55:31,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:31" (1/1) ... [2023-11-28 23:55:31,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ea71ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:31, skipping insertion in model container [2023-11-28 23:55:31,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:31" (1/1) ... [2023-11-28 23:55:32,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:55:32,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:32,601 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) [2023-11-28 23:55:32,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6602764b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:32, skipping insertion in model container [2023-11-28 23:55:32,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:32,602 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-28 23:55:32,604 INFO L158 Benchmark]: Toolchain (without parser) took 626.51ms. Allocated memory is still 146.8MB. Free memory was 99.8MB in the beginning and 78.1MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-28 23:55:32,605 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:55:32,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.00ms. Allocated memory is still 146.8MB. Free memory was 99.8MB in the beginning and 78.1MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-28 23:55:32,607 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 624.00ms. Allocated memory is still 146.8MB. Free memory was 99.8MB in the beginning and 78.1MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: 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_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/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_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/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_37b47741-9310-46fc-832b-0635a0adab99/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 ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:55:34,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:55:34,448 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-28 23:55:34,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:55:34,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:55:34,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:55:34,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:55:34,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:55:34,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:55:34,486 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:55:34,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:55:34,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:55:34,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:55:34,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:55:34,489 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:55:34,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:55:34,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:55:34,491 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:55:34,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:55:34,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:55:34,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:55:34,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:55:34,494 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 23:55:34,494 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 23:55:34,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:55:34,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:55:34,495 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:55:34,496 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 23:55:34,496 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 23:55:34,497 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:55:34,497 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:55:34,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:55:34,498 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:55:34,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:55:34,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:55:34,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:55:34,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:55:34,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:34,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:55:34,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:55:34,500 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 23:55:34,500 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 23:55:34,500 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:55:34,501 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:55:34,501 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:55:34,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:55:34,501 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 23:55:34,501 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_37b47741-9310-46fc-832b-0635a0adab99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 [2023-11-28 23:55:34,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:55:34,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:55:34,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:55:34,809 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:55:34,810 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:55:34,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2023-11-28 23:55:37,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:55:37,888 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:55:37,888 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2023-11-28 23:55:37,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/data/b88423e59/674511baa94844ddafe1f70c522365fb/FLAG44e85ec06 [2023-11-28 23:55:37,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/data/b88423e59/674511baa94844ddafe1f70c522365fb [2023-11-28 23:55:37,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:55:37,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:55:37,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:37,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:55:37,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:55:37,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:37" (1/1) ... [2023-11-28 23:55:37,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2d56e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:37, skipping insertion in model container [2023-11-28 23:55:37,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:37" (1/1) ... [2023-11-28 23:55:38,000 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:55:38,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:38,594 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-28 23:55:38,607 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:55:38,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:38,685 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:55:38,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:38,822 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:55:38,830 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:55:38,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38 WrapperNode [2023-11-28 23:55:38,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:38,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:38,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:55:38,831 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:55:38,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:38,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:38,935 INFO L138 Inliner]: procedures = 285, calls = 298, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1045 [2023-11-28 23:55:38,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:38,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:55:38,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:55:38,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:55:38,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:38,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:38,961 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:39,042 INFO L175 MemorySlicer]: Split 264 memory accesses to 5 slices as follows [2, 220, 3, 34, 5]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 56 writes are split as follows [0, 49, 2, 4, 1]. [2023-11-28 23:55:39,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:39,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:39,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:39,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:39,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:39,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:39,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:55:39,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:55:39,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:55:39,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:55:39,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (1/1) ... [2023-11-28 23:55:39,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:39,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:55:39,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:55:39,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:55:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-28 23:55:39,223 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-28 23:55:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-28 23:55:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-28 23:55:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-28 23:55:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-28 23:55:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-28 23:55:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-28 23:55:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-28 23:55:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-28 23:55:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-28 23:55:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-28 23:55:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:55:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-28 23:55:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 23:55:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 23:55:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-28 23:55:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-28 23:55:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-28 23:55:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:55:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-28 23:55:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-28 23:55:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-28 23:55:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-28 23:55:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-28 23:55:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 23:55:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-28 23:55:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-28 23:55:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-28 23:55:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-28 23:55:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-28 23:55:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-28 23:55:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 23:55:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 23:55:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 23:55:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:55:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-28 23:55:39,230 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-28 23:55:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 23:55:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 23:55:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-28 23:55:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-28 23:55:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-28 23:55:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-28 23:55:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-28 23:55:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:55:39,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:55:39,444 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:55:39,446 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:55:46,577 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:55:46,619 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:55:46,619 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-28 23:55:46,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:46 BoogieIcfgContainer [2023-11-28 23:55:46,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:55:46,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:55:46,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:55:46,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:55:46,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:55:37" (1/3) ... [2023-11-28 23:55:46,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4123c3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:46, skipping insertion in model container [2023-11-28 23:55:46,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:38" (2/3) ... [2023-11-28 23:55:46,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4123c3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:46, skipping insertion in model container [2023-11-28 23:55:46,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:46" (3/3) ... [2023-11-28 23:55:46,628 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-1.i [2023-11-28 23:55:46,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:55:46,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-28 23:55:46,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:55:46,702 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;@b549c7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:55:46,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-28 23:55:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 225 states, 200 states have (on average 1.635) internal successors, (327), 205 states have internal predecessors, (327), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-28 23:55:46,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-28 23:55:46,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:46,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:46,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:55:46,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:46,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1518545934, now seen corresponding path program 1 times [2023-11-28 23:55:46,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:46,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203643621] [2023-11-28 23:55:46,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:46,737 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 [2023-11-28 23:55:46,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:46,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:55:46,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:46,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:55:46,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:46,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:55:46,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:55:46,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203643621] [2023-11-28 23:55:46,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203643621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:46,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:46,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:55:46,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97859947] [2023-11-28 23:55:46,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:46,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:55:46,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:55:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:55:47,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:55:47,028 INFO L87 Difference]: Start difference. First operand has 225 states, 200 states have (on average 1.635) internal successors, (327), 205 states have internal predecessors, (327), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:47,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:47,144 INFO L93 Difference]: Finished difference Result 220 states and 285 transitions. [2023-11-28 23:55:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:55:47,146 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-28 23:55:47,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:47,157 INFO L225 Difference]: With dead ends: 220 [2023-11-28 23:55:47,157 INFO L226 Difference]: Without dead ends: 219 [2023-11-28 23:55:47,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:55:47,163 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:47,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:55:47,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-28 23:55:47,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-28 23:55:47,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 196 states have (on average 1.2959183673469388) internal successors, (254), 201 states have internal predecessors, (254), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:55:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 284 transitions. [2023-11-28 23:55:47,211 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 284 transitions. Word has length 9 [2023-11-28 23:55:47,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:47,211 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 284 transitions. [2023-11-28 23:55:47,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:47,212 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 284 transitions. [2023-11-28 23:55:47,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-28 23:55:47,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:47,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:47,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:47,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:55:47,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:55:47,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:47,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1131489963, now seen corresponding path program 1 times [2023-11-28 23:55:47,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:47,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581434975] [2023-11-28 23:55:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:47,416 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 [2023-11-28 23:55:47,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:47,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:55:47,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:47,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:55:47,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:47,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:55:47,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:55:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581434975] [2023-11-28 23:55:47,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581434975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:47,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:47,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:55:47,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976963692] [2023-11-28 23:55:47,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:47,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:55:47,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:55:47,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:55:47,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:55:47,732 INFO L87 Difference]: Start difference. First operand 219 states and 284 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:52,091 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 [] [2023-11-28 23:55:54,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:55:55,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:55:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:55,456 INFO L93 Difference]: Finished difference Result 341 states and 445 transitions. [2023-11-28 23:55:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:55:55,458 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-28 23:55:55,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:55,461 INFO L225 Difference]: With dead ends: 341 [2023-11-28 23:55:55,461 INFO L226 Difference]: Without dead ends: 341 [2023-11-28 23:55:55,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:55:55,463 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 155 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:55,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 734 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 96 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2023-11-28 23:55:55,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-28 23:55:55,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 329. [2023-11-28 23:55:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 306 states have (on average 1.303921568627451) internal successors, (399), 311 states have internal predecessors, (399), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:55:55,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 429 transitions. [2023-11-28 23:55:55,490 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 429 transitions. Word has length 11 [2023-11-28 23:55:55,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:55,491 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 429 transitions. [2023-11-28 23:55:55,491 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:55,491 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 429 transitions. [2023-11-28 23:55:55,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-28 23:55:55,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:55,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:55,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:55,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:55:55,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:55:55,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:55,694 INFO L85 PathProgramCache]: Analyzing trace with hash 2059992344, now seen corresponding path program 1 times [2023-11-28 23:55:55,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:55,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183057022] [2023-11-28 23:55:55,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:55,694 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 [2023-11-28 23:55:55,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:55,695 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:55:55,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:55,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:55:55,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:55,905 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-28 23:55:55,906 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-28 23:55:55,906 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-28 23:55:55,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-28 23:55:55,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:55:55,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-28 23:55:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:56,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:55:56,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:55:56,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183057022] [2023-11-28 23:55:56,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183057022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:56,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:56,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:55:56,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709826418] [2023-11-28 23:55:56,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:56,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:55:56,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:55:56,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:55:56,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:55:56,008 INFO L87 Difference]: Start difference. First operand 329 states and 429 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:56,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:56,619 INFO L93 Difference]: Finished difference Result 506 states and 666 transitions. [2023-11-28 23:55:56,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:55:56,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-28 23:55:56,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:56,623 INFO L225 Difference]: With dead ends: 506 [2023-11-28 23:55:56,623 INFO L226 Difference]: Without dead ends: 506 [2023-11-28 23:55:56,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:55:56,625 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 227 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:56,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 842 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:55:56,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-11-28 23:55:56,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 328. [2023-11-28 23:55:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 305 states have (on average 1.301639344262295) internal successors, (397), 310 states have internal predecessors, (397), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:55:56,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 427 transitions. [2023-11-28 23:55:56,644 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 427 transitions. Word has length 14 [2023-11-28 23:55:56,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:56,644 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 427 transitions. [2023-11-28 23:55:56,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 427 transitions. [2023-11-28 23:55:56,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-28 23:55:56,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:56,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:56,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-28 23:55:56,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:55:56,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:55:56,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:56,848 INFO L85 PathProgramCache]: Analyzing trace with hash 518278030, now seen corresponding path program 1 times [2023-11-28 23:55:56,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:56,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984418060] [2023-11-28 23:55:56,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:56,849 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 [2023-11-28 23:55:56,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:56,850 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:55:56,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:55:57,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:57,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:55:57,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:55:57,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984418060] [2023-11-28 23:55:57,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984418060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:57,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:57,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:55:57,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172475173] [2023-11-28 23:55:57,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:57,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:55:57,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:55:57,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:55:57,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:55:57,170 INFO L87 Difference]: Start difference. First operand 328 states and 427 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:57,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:57,327 INFO L93 Difference]: Finished difference Result 336 states and 419 transitions. [2023-11-28 23:55:57,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:55:57,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-11-28 23:55:57,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:57,330 INFO L225 Difference]: With dead ends: 336 [2023-11-28 23:55:57,330 INFO L226 Difference]: Without dead ends: 336 [2023-11-28 23:55:57,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:55:57,331 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 36 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:57,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 720 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:55:57,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-28 23:55:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 334. [2023-11-28 23:55:57,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 311 states have (on average 1.2443729903536977) internal successors, (387), 316 states have internal predecessors, (387), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:55:57,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 417 transitions. [2023-11-28 23:55:57,344 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 417 transitions. Word has length 48 [2023-11-28 23:55:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:57,344 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 417 transitions. [2023-11-28 23:55:57,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:57,345 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 417 transitions. [2023-11-28 23:55:57,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-28 23:55:57,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:57,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:57,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:57,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:55:57,552 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:55:57,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:57,553 INFO L85 PathProgramCache]: Analyzing trace with hash 972862082, now seen corresponding path program 1 times [2023-11-28 23:55:57,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:57,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390008598] [2023-11-28 23:55:57,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:57,553 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 [2023-11-28 23:55:57,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:57,554 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:55:57,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:55:57,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:57,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:57,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:55:57,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:55:57,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390008598] [2023-11-28 23:55:57,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390008598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:57,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:57,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:55:57,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258953668] [2023-11-28 23:55:57,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:57,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:55:57,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:55:57,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:55:57,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:55:57,920 INFO L87 Difference]: Start difference. First operand 334 states and 417 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:58,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:58,106 INFO L93 Difference]: Finished difference Result 343 states and 426 transitions. [2023-11-28 23:55:58,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:55:58,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-11-28 23:55:58,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:58,109 INFO L225 Difference]: With dead ends: 343 [2023-11-28 23:55:58,109 INFO L226 Difference]: Without dead ends: 343 [2023-11-28 23:55:58,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:55:58,110 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 11 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:58,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1300 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:55:58,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-28 23:55:58,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2023-11-28 23:55:58,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 317 states have (on average 1.2429022082018928) internal successors, (394), 323 states have internal predecessors, (394), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-28 23:55:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 426 transitions. [2023-11-28 23:55:58,124 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 426 transitions. Word has length 48 [2023-11-28 23:55:58,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:58,125 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 426 transitions. [2023-11-28 23:55:58,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:55:58,125 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 426 transitions. [2023-11-28 23:55:58,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-28 23:55:58,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:58,128 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:58,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-28 23:55:58,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:55:58,330 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:55:58,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1058188914, now seen corresponding path program 1 times [2023-11-28 23:55:58,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:58,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995492974] [2023-11-28 23:55:58,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:58,331 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 [2023-11-28 23:55:58,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:58,332 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:55:58,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:58,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:55:58,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:58,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:55:58,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:55:58,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995492974] [2023-11-28 23:55:58,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995492974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:58,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:58,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:55:58,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057302819] [2023-11-28 23:55:58,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:58,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:55:58,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:55:58,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:55:58,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:55:58,900 INFO L87 Difference]: Start difference. First operand 343 states and 426 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 23:55:59,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:59,201 INFO L93 Difference]: Finished difference Result 349 states and 434 transitions. [2023-11-28 23:55:59,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:55:59,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2023-11-28 23:55:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:59,205 INFO L225 Difference]: With dead ends: 349 [2023-11-28 23:55:59,205 INFO L226 Difference]: Without dead ends: 349 [2023-11-28 23:55:59,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:55:59,206 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 17 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:59,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 946 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:55:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-28 23:55:59,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 346. [2023-11-28 23:55:59,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 318 states have (on average 1.2421383647798743) internal successors, (395), 325 states have internal predecessors, (395), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-28 23:55:59,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 430 transitions. [2023-11-28 23:55:59,219 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 430 transitions. Word has length 60 [2023-11-28 23:55:59,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:59,219 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 430 transitions. [2023-11-28 23:55:59,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 23:55:59,220 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 430 transitions. [2023-11-28 23:55:59,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-28 23:55:59,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:59,222 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:59,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:59,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:55:59,425 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:55:59,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:59,425 INFO L85 PathProgramCache]: Analyzing trace with hash -356355389, now seen corresponding path program 1 times [2023-11-28 23:55:59,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:59,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201674082] [2023-11-28 23:55:59,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:59,426 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 [2023-11-28 23:55:59,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:59,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:55:59,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:55:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:59,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:55:59,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:59,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:55:59,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:55:59,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201674082] [2023-11-28 23:55:59,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201674082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:59,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:59,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:55:59,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204172004] [2023-11-28 23:55:59,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:59,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:55:59,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:55:59,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:55:59,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:55:59,819 INFO L87 Difference]: Start difference. First operand 346 states and 430 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:55:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:59,916 INFO L93 Difference]: Finished difference Result 348 states and 433 transitions. [2023-11-28 23:55:59,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:55:59,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 65 [2023-11-28 23:55:59,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:59,920 INFO L225 Difference]: With dead ends: 348 [2023-11-28 23:55:59,920 INFO L226 Difference]: Without dead ends: 348 [2023-11-28 23:55:59,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:55:59,922 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:59,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 784 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:55:59,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-28 23:55:59,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2023-11-28 23:55:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 319 states have (on average 1.244514106583072) internal successors, (397), 327 states have internal predecessors, (397), 19 states have call successors, (19), 7 states have call predecessors, (19), 8 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-28 23:55:59,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 433 transitions. [2023-11-28 23:55:59,934 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 433 transitions. Word has length 65 [2023-11-28 23:55:59,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:59,935 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 433 transitions. [2023-11-28 23:55:59,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 23:55:59,935 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 433 transitions. [2023-11-28 23:55:59,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-28 23:55:59,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:59,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:59,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-28 23:56:00,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:56:00,141 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:56:00,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:00,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1848689150, now seen corresponding path program 1 times [2023-11-28 23:56:00,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:56:00,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413957386] [2023-11-28 23:56:00,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:00,142 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 [2023-11-28 23:56:00,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:56:00,143 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:56:00,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:00,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:56:00,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:56:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:56:00,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:56:00,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:56:00,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:56:00,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413957386] [2023-11-28 23:56:00,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413957386] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:56:00,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:56:00,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-28 23:56:00,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165559402] [2023-11-28 23:56:00,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:56:00,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:56:00,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:56:00,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:56:00,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:56:00,671 INFO L87 Difference]: Start difference. First operand 348 states and 433 transitions. Second operand has 8 states, 6 states have (on average 10.0) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:56:01,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:01,021 INFO L93 Difference]: Finished difference Result 357 states and 447 transitions. [2023-11-28 23:56:01,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:56:01,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 66 [2023-11-28 23:56:01,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:01,025 INFO L225 Difference]: With dead ends: 357 [2023-11-28 23:56:01,026 INFO L226 Difference]: Without dead ends: 357 [2023-11-28 23:56:01,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:56:01,027 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 4 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:01,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1558 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:56:01,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-28 23:56:01,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2023-11-28 23:56:01,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 326 states have (on average 1.2576687116564418) internal successors, (410), 334 states have internal predecessors, (410), 19 states have call successors, (19), 8 states have call predecessors, (19), 9 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-28 23:56:01,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 446 transitions. [2023-11-28 23:56:01,040 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 446 transitions. Word has length 66 [2023-11-28 23:56:01,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:01,040 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 446 transitions. [2023-11-28 23:56:01,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:56:01,041 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 446 transitions. [2023-11-28 23:56:01,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-28 23:56:01,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:01,042 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:01,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:01,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:56:01,245 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:56:01,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:01,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2071587203, now seen corresponding path program 2 times [2023-11-28 23:56:01,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:56:01,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779712986] [2023-11-28 23:56:01,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:56:01,246 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 [2023-11-28 23:56:01,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:56:01,247 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:56:01,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:01,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:56:01,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:56:01,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 23:56:01,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:56:01,905 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:56:01,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:56:02,231 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:56:02,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:56:02,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779712986] [2023-11-28 23:56:02,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779712986] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:56:02,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:56:02,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-28 23:56:02,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357654631] [2023-11-28 23:56:02,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:56:02,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 23:56:02,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:56:02,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 23:56:02,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:56:02,234 INFO L87 Difference]: Start difference. First operand 356 states and 446 transitions. Second operand has 14 states, 12 states have (on average 5.5) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:56:03,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:03,199 INFO L93 Difference]: Finished difference Result 368 states and 465 transitions. [2023-11-28 23:56:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 23:56:03,200 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.5) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2023-11-28 23:56:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:03,202 INFO L225 Difference]: With dead ends: 368 [2023-11-28 23:56:03,202 INFO L226 Difference]: Without dead ends: 366 [2023-11-28 23:56:03,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2023-11-28 23:56:03,204 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 8 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:03,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1558 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:56:03,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-28 23:56:03,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2023-11-28 23:56:03,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 335 states have (on average 1.2597014925373133) internal successors, (422), 343 states have internal predecessors, (422), 19 states have call successors, (19), 8 states have call predecessors, (19), 9 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-28 23:56:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 458 transitions. [2023-11-28 23:56:03,218 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 458 transitions. Word has length 69 [2023-11-28 23:56:03,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:03,218 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 458 transitions. [2023-11-28 23:56:03,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.5) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:56:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 458 transitions. [2023-11-28 23:56:03,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-28 23:56:03,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:03,220 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:03,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-28 23:56:03,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:56:03,421 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:56:03,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:03,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1354008483, now seen corresponding path program 3 times [2023-11-28 23:56:03,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:56:03,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616716387] [2023-11-28 23:56:03,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:56:03,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:56:03,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:56:03,423 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:56:03,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:03,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 23:56:03,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:56:03,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:56:03,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:56:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-28 23:56:04,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:56:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-28 23:56:04,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:56:04,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616716387] [2023-11-28 23:56:04,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616716387] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:56:04,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:56:04,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-28 23:56:04,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67231463] [2023-11-28 23:56:04,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:56:04,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:56:04,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:56:04,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:56:04,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:56:04,397 INFO L87 Difference]: Start difference. First operand 365 states and 458 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-28 23:56:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:06,176 INFO L93 Difference]: Finished difference Result 2684 states and 3423 transitions. [2023-11-28 23:56:06,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-28 23:56:06,177 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) Word has length 75 [2023-11-28 23:56:06,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:06,191 INFO L225 Difference]: With dead ends: 2684 [2023-11-28 23:56:06,191 INFO L226 Difference]: Without dead ends: 2684 [2023-11-28 23:56:06,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2023-11-28 23:56:06,192 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 3179 mSDsluCounter, 4423 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3205 SdHoareTripleChecker+Valid, 5147 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:06,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3205 Valid, 5147 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-28 23:56:06,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2023-11-28 23:56:06,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1858. [2023-11-28 23:56:06,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1764 states have (on average 1.2704081632653061) internal successors, (2241), 1778 states have internal predecessors, (2241), 58 states have call successors, (58), 32 states have call predecessors, (58), 34 states have return successors, (62), 47 states have call predecessors, (62), 54 states have call successors, (62) [2023-11-28 23:56:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2361 transitions. [2023-11-28 23:56:06,247 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2361 transitions. Word has length 75 [2023-11-28 23:56:06,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:06,247 INFO L495 AbstractCegarLoop]: Abstraction has 1858 states and 2361 transitions. [2023-11-28 23:56:06,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-28 23:56:06,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2361 transitions. [2023-11-28 23:56:06,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-28 23:56:06,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:06,249 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:06,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:06,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:56:06,449 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:56:06,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:06,450 INFO L85 PathProgramCache]: Analyzing trace with hash 445728410, now seen corresponding path program 1 times [2023-11-28 23:56:06,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:56:06,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52310605] [2023-11-28 23:56:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:06,451 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 [2023-11-28 23:56:06,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:56:06,452 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:56:06,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:07,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 23:56:07,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:56:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-28 23:56:07,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:56:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-28 23:56:08,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:56:08,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52310605] [2023-11-28 23:56:08,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52310605] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:56:08,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:56:08,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-28 23:56:08,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031408349] [2023-11-28 23:56:08,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:56:08,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 23:56:08,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:56:08,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 23:56:08,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-28 23:56:08,374 INFO L87 Difference]: Start difference. First operand 1858 states and 2361 transitions. Second operand has 26 states, 24 states have (on average 4.666666666666667) internal successors, (112), 26 states have internal predecessors, (112), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:56:12,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:12,702 INFO L93 Difference]: Finished difference Result 1963 states and 2546 transitions. [2023-11-28 23:56:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-28 23:56:12,703 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.666666666666667) internal successors, (112), 26 states have internal predecessors, (112), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 111 [2023-11-28 23:56:12,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:12,714 INFO L225 Difference]: With dead ends: 1963 [2023-11-28 23:56:12,715 INFO L226 Difference]: Without dead ends: 1953 [2023-11-28 23:56:12,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2023-11-28 23:56:12,717 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 14 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3371 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:12,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3371 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 23:56:12,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2023-11-28 23:56:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1948. [2023-11-28 23:56:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1854 states have (on average 1.273462783171521) internal successors, (2361), 1868 states have internal predecessors, (2361), 58 states have call successors, (58), 32 states have call predecessors, (58), 34 states have return successors, (62), 47 states have call predecessors, (62), 54 states have call successors, (62) [2023-11-28 23:56:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2481 transitions. [2023-11-28 23:56:12,779 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2481 transitions. Word has length 111 [2023-11-28 23:56:12,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:12,779 INFO L495 AbstractCegarLoop]: Abstraction has 1948 states and 2481 transitions. [2023-11-28 23:56:12,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.666666666666667) internal successors, (112), 26 states have internal predecessors, (112), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 23:56:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2481 transitions. [2023-11-28 23:56:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-28 23:56:12,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:12,781 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:12,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:12,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:56:12,982 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:56:12,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:12,982 INFO L85 PathProgramCache]: Analyzing trace with hash -435129094, now seen corresponding path program 2 times [2023-11-28 23:56:12,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:56:12,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051166032] [2023-11-28 23:56:12,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:56:12,983 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 [2023-11-28 23:56:12,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:56:12,984 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:56:12,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:13,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:56:13,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:56:13,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:56:13,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:56:13,304 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-28 23:56:13,304 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-28 23:56:13,305 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-28 23:56:13,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-28 23:56:13,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:56:13,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-28 23:56:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2023-11-28 23:56:13,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:56:13,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:56:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051166032] [2023-11-28 23:56:13,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051166032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:13,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:13,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:56:13,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680556083] [2023-11-28 23:56:13,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:13,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:56:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:56:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:56:13,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:56:13,372 INFO L87 Difference]: Start difference. First operand 1948 states and 2481 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-28 23:56:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:13,940 INFO L93 Difference]: Finished difference Result 2700 states and 3483 transitions. [2023-11-28 23:56:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:56:13,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2023-11-28 23:56:13,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:13,952 INFO L225 Difference]: With dead ends: 2700 [2023-11-28 23:56:13,952 INFO L226 Difference]: Without dead ends: 2700 [2023-11-28 23:56:13,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:56:13,953 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 212 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:13,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 729 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:56:13,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2023-11-28 23:56:14,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 1960. [2023-11-28 23:56:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1960 states, 1866 states have (on average 1.2717041800643087) internal successors, (2373), 1880 states have internal predecessors, (2373), 58 states have call successors, (58), 32 states have call predecessors, (58), 34 states have return successors, (62), 47 states have call predecessors, (62), 54 states have call successors, (62) [2023-11-28 23:56:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2493 transitions. [2023-11-28 23:56:14,014 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2493 transitions. Word has length 129 [2023-11-28 23:56:14,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:14,015 INFO L495 AbstractCegarLoop]: Abstraction has 1960 states and 2493 transitions. [2023-11-28 23:56:14,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-28 23:56:14,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2493 transitions. [2023-11-28 23:56:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-28 23:56:14,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:14,017 INFO L195 NwaCegarLoop]: trace histogram [33, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:14,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-28 23:56:14,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:56:14,219 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:56:14,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash -427519190, now seen corresponding path program 1 times [2023-11-28 23:56:14,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:56:14,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584976383] [2023-11-28 23:56:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:56:14,221 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 [2023-11-28 23:56:14,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:56:14,222 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:56:14,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:14,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-28 23:56:14,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:56:15,704 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 311 proven. 253 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-28 23:56:15,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:56:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 554 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-28 23:56:18,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:56:18,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584976383] [2023-11-28 23:56:18,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584976383] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:56:18,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:56:18,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-28 23:56:18,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052447859] [2023-11-28 23:56:18,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:56:18,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-28 23:56:18,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:56:18,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-28 23:56:18,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-28 23:56:18,858 INFO L87 Difference]: Start difference. First operand 1960 states and 2493 transitions. Second operand has 50 states, 48 states have (on average 2.7083333333333335) internal successors, (130), 50 states have internal predecessors, (130), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 23:56:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:56:40,095 INFO L93 Difference]: Finished difference Result 2145 states and 2838 transitions. [2023-11-28 23:56:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-11-28 23:56:40,096 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.7083333333333335) internal successors, (130), 50 states have internal predecessors, (130), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 133 [2023-11-28 23:56:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:56:40,104 INFO L225 Difference]: With dead ends: 2145 [2023-11-28 23:56:40,105 INFO L226 Difference]: Without dead ends: 2135 [2023-11-28 23:56:40,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2023-11-28 23:56:40,108 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 26 mSDsluCounter, 6216 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6479 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:56:40,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6479 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-28 23:56:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2023-11-28 23:56:40,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 2130. [2023-11-28 23:56:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2036 states have (on average 1.2784872298624754) internal successors, (2603), 2050 states have internal predecessors, (2603), 58 states have call successors, (58), 32 states have call predecessors, (58), 34 states have return successors, (62), 47 states have call predecessors, (62), 54 states have call successors, (62) [2023-11-28 23:56:40,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2723 transitions. [2023-11-28 23:56:40,146 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2723 transitions. Word has length 133 [2023-11-28 23:56:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:56:40,147 INFO L495 AbstractCegarLoop]: Abstraction has 2130 states and 2723 transitions. [2023-11-28 23:56:40,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.7083333333333335) internal successors, (130), 50 states have internal predecessors, (130), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 23:56:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2723 transitions. [2023-11-28 23:56:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-28 23:56:40,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:56:40,149 INFO L195 NwaCegarLoop]: trace histogram [67, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:56:40,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:40,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:56:40,349 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:56:40,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:56:40,350 INFO L85 PathProgramCache]: Analyzing trace with hash -418142070, now seen corresponding path program 2 times [2023-11-28 23:56:40,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:56:40,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435144496] [2023-11-28 23:56:40,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:56:40,351 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 [2023-11-28 23:56:40,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:56:40,352 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:56:40,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:56:42,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:56:42,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:56:42,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-28 23:56:42,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:56:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2433 backedges. 1162 proven. 276 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2023-11-28 23:56:42,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:56:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2433 backedges. 1081 proven. 301 refuted. 0 times theorem prover too weak. 1051 trivial. 0 not checked. [2023-11-28 23:56:46,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:56:46,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435144496] [2023-11-28 23:56:46,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435144496] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:56:46,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:56:46,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-28 23:56:46,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88088662] [2023-11-28 23:56:46,468 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:56:46,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-28 23:56:46,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:56:46,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-28 23:56:46,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-28 23:56:46,470 INFO L87 Difference]: Start difference. First operand 2130 states and 2723 transitions. Second operand has 52 states, 50 states have (on average 2.62) internal successors, (131), 52 states have internal predecessors, (131), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 23:57:13,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:13,792 INFO L93 Difference]: Finished difference Result 2265 states and 2983 transitions. [2023-11-28 23:57:13,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-11-28 23:57:13,793 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 2.62) internal successors, (131), 52 states have internal predecessors, (131), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 167 [2023-11-28 23:57:13,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:13,801 INFO L225 Difference]: With dead ends: 2265 [2023-11-28 23:57:13,802 INFO L226 Difference]: Without dead ends: 2265 [2023-11-28 23:57:13,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=3146, Invalid=6556, Unknown=0, NotChecked=0, Total=9702 [2023-11-28 23:57:13,805 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 26 mSDsluCounter, 6475 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6737 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:13,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6737 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-28 23:57:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2023-11-28 23:57:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2255. [2023-11-28 23:57:13,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2161 states have (on average 1.3202221193891717) internal successors, (2853), 2175 states have internal predecessors, (2853), 58 states have call successors, (58), 32 states have call predecessors, (58), 34 states have return successors, (62), 47 states have call predecessors, (62), 54 states have call successors, (62) [2023-11-28 23:57:13,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 2973 transitions. [2023-11-28 23:57:13,863 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 2973 transitions. Word has length 167 [2023-11-28 23:57:13,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:13,864 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 2973 transitions. [2023-11-28 23:57:13,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 2.62) internal successors, (131), 52 states have internal predecessors, (131), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 23:57:13,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 2973 transitions. [2023-11-28 23:57:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-28 23:57:13,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:13,866 INFO L195 NwaCegarLoop]: trace histogram [92, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:13,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:57:14,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:57:14,067 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:57:14,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1641405979, now seen corresponding path program 3 times [2023-11-28 23:57:14,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:57:14,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064185208] [2023-11-28 23:57:14,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:57:14,069 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 [2023-11-28 23:57:14,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:57:14,070 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:57:14,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:57:16,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 23:57:16,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:57:16,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-28 23:57:16,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:57:16,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2023-11-28 23:57:16,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 450 treesize of output 330 [2023-11-28 23:57:16,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 330 treesize of output 210 [2023-11-28 23:57:16,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:57:16,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 90 [2023-11-28 23:57:18,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 116 [2023-11-28 23:57:18,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 68 [2023-11-28 23:57:18,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:57:18,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 20 [2023-11-28 23:57:19,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:57:19,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 106 [2023-11-28 23:57:19,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4483 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 4379 trivial. 0 not checked. [2023-11-28 23:57:19,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:57:19,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:57:19,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064185208] [2023-11-28 23:57:19,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064185208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:19,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:19,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-28 23:57:19,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359838933] [2023-11-28 23:57:19,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:19,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-28 23:57:19,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:57:19,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-28 23:57:19,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-28 23:57:19,463 INFO L87 Difference]: Start difference. First operand 2255 states and 2973 transitions. Second operand has 17 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-28 23:57:23,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:57:27,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:57:31,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:57:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:37,803 INFO L93 Difference]: Finished difference Result 2822 states and 3705 transitions. [2023-11-28 23:57:37,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:57:37,805 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 192 [2023-11-28 23:57:37,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:37,815 INFO L225 Difference]: With dead ends: 2822 [2023-11-28 23:57:37,815 INFO L226 Difference]: Without dead ends: 2817 [2023-11-28 23:57:37,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2023-11-28 23:57:37,816 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 662 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:37,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 3028 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2023-11-28 23:57:37,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2023-11-28 23:57:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2512. [2023-11-28 23:57:37,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2512 states, 2405 states have (on average 1.306029106029106) internal successors, (3141), 2424 states have internal predecessors, (3141), 62 states have call successors, (62), 36 states have call predecessors, (62), 43 states have return successors, (71), 51 states have call predecessors, (71), 58 states have call successors, (71) [2023-11-28 23:57:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2512 states to 2512 states and 3274 transitions. [2023-11-28 23:57:37,853 INFO L78 Accepts]: Start accepts. Automaton has 2512 states and 3274 transitions. Word has length 192 [2023-11-28 23:57:37,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:37,853 INFO L495 AbstractCegarLoop]: Abstraction has 2512 states and 3274 transitions. [2023-11-28 23:57:37,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-28 23:57:37,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2512 states and 3274 transitions. [2023-11-28 23:57:37,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-28 23:57:37,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:37,855 INFO L195 NwaCegarLoop]: trace histogram [93, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:37,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-28 23:57:38,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 23:57:38,056 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 23:57:38,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:38,056 INFO L85 PathProgramCache]: Analyzing trace with hash -65008132, now seen corresponding path program 4 times [2023-11-28 23:57:38,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:57:38,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359129265] [2023-11-28 23:57:38,058 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 23:57:38,058 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 [2023-11-28 23:57:38,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:57:38,059 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-28 23:57:38,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-28 23:57:39,978 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 23:57:39,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:57:40,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-28 23:57:40,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:57:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4578 backedges. 2406 proven. 1176 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2023-11-28 23:57:42,650 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:57:55,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4578 backedges. 2206 proven. 1275 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2023-11-28 23:57:55,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:57:55,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359129265] [2023-11-28 23:57:55,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359129265] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:57:55,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:57:55,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-28 23:57:55,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427313026] [2023-11-28 23:57:55,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:57:55,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-28 23:57:55,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:57:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-28 23:57:55,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-28 23:57:55,357 INFO L87 Difference]: Start difference. First operand 2512 states and 3274 transitions. Second operand has 102 states, 100 states have (on average 1.82) internal successors, (182), 102 states have internal predecessors, (182), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 23:58:15,817 WARN L293 SmtUtils]: Spent 7.24s on a formula simplification that was a NOOP. DAG size: 201 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:58:25,104 WARN L293 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 197 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:58:33,373 WARN L293 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:58:41,821 WARN L293 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 189 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:58:49,989 WARN L293 SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 185 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:58:59,060 WARN L293 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 181 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:59:07,289 WARN L293 SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:59:15,416 WARN L293 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:59:23,245 WARN L293 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:59:30,318 WARN L293 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 00:01:22,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:01:22,630 INFO L93 Difference]: Finished difference Result 2792 states and 3819 transitions. [2023-11-29 00:01:22,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 00:01:22,631 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 1.82) internal successors, (182), 102 states have internal predecessors, (182), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 193 [2023-11-29 00:01:22,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:01:22,644 INFO L225 Difference]: With dead ends: 2792 [2023-11-29 00:01:22,644 INFO L226 Difference]: Without dead ends: 2792 [2023-11-29 00:01:22,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 210.1s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 00:01:22,657 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 53 mSDsluCounter, 12691 mSDsCounter, 0 mSdLazyCounter, 5647 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 12953 SdHoareTripleChecker+Invalid, 5716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 5647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:01:22,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 12953 Invalid, 5716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 5647 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-11-29 00:01:22,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2023-11-29 00:01:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2782. [2023-11-29 00:01:22,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2675 states have (on average 1.3742056074766356) internal successors, (3676), 2694 states have internal predecessors, (3676), 62 states have call successors, (62), 36 states have call predecessors, (62), 43 states have return successors, (71), 51 states have call predecessors, (71), 58 states have call successors, (71) [2023-11-29 00:01:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3809 transitions. [2023-11-29 00:01:22,724 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3809 transitions. Word has length 193 [2023-11-29 00:01:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:01:22,725 INFO L495 AbstractCegarLoop]: Abstraction has 2782 states and 3809 transitions. [2023-11-29 00:01:22,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 1.82) internal successors, (182), 102 states have internal predecessors, (182), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 00:01:22,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3809 transitions. [2023-11-29 00:01:22,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-11-29 00:01:22,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:01:22,729 INFO L195 NwaCegarLoop]: trace histogram [143, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:01:22,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-29 00:01:22,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 00:01:22,930 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:01:22,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:01:22,930 INFO L85 PathProgramCache]: Analyzing trace with hash -292421028, now seen corresponding path program 5 times [2023-11-29 00:01:22,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:01:22,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110031231] [2023-11-29 00:01:22,932 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 00:01:22,932 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 00:01:22,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:01:22,933 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 00:01:22,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37b47741-9310-46fc-832b-0635a0adab99/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 00:01:36,665 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 50 check-sat command(s) [2023-11-29 00:01:36,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:01:36,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 104 conjunts are in the unsatisfiable core [2023-11-29 00:01:36,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:01:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 10603 backedges. 4756 proven. 4851 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2023-11-29 00:01:45,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:02:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10603 backedges. 4456 proven. 5050 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2023-11-29 00:02:53,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:02:53,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110031231] [2023-11-29 00:02:53,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110031231] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:02:53,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:02:53,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-29 00:02:53,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494804459] [2023-11-29 00:02:53,304 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:02:53,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-29 00:02:53,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:02:53,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-29 00:02:53,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-29 00:02:53,317 INFO L87 Difference]: Start difference. First operand 2782 states and 3809 transitions. Second operand has 202 states, 200 states have (on average 1.41) internal successors, (282), 202 states have internal predecessors, (282), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 00:04:42,636 WARN L293 SmtUtils]: Spent 1.05m on a formula simplification. DAG size of input: 499 DAG size of output: 401 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 00:05:51,900 WARN L293 SmtUtils]: Spent 1.04m on a formula simplification. DAG size of input: 494 DAG size of output: 397 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 00:07:01,133 WARN L293 SmtUtils]: Spent 1.03m on a formula simplification. DAG size of input: 489 DAG size of output: 393 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 00:08:21,257 WARN L293 SmtUtils]: Spent 1.21m on a formula simplification. DAG size of input: 484 DAG size of output: 389 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 00:09:36,887 WARN L293 SmtUtils]: Spent 1.12m on a formula simplification. DAG size of input: 479 DAG size of output: 385 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)