./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.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_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI --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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:05:09,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:05:09,987 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-24 22:05:09,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:05:09,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:05:10,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:05:10,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:05:10,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:05:10,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 22:05:10,041 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 22:05:10,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:05:10,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:05:10,043 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:05:10,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:05:10,045 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:05:10,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:05:10,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:05:10,047 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:05:10,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:05:10,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:05:10,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:05:10,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:05:10,051 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:05:10,051 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:05:10,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:05:10,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:05:10,052 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:05:10,053 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:05:10,053 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:05:10,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:05:10,055 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:05:10,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:05:10,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:05:10,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:05:10,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:05:10,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:05:10,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:05:10,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:05:10,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:05:10,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:05:10,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:05:10,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 22:05:10,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 22:05:10,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:05:10,059 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_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2023-11-24 22:05:10,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:05:10,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:05:10,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:05:10,414 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:05:10,414 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:05:10,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2023-11-24 22:05:13,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:05:13,768 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:05:13,770 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2023-11-24 22:05:13,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/data/89cd8e3c7/fc8b5f7a11db429e8e7010a3b0b342c5/FLAG2a7a2b177 [2023-11-24 22:05:13,807 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/data/89cd8e3c7/fc8b5f7a11db429e8e7010a3b0b342c5 [2023-11-24 22:05:13,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:05:13,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:05:13,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:05:13,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:05:13,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:05:13,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:05:13" (1/1) ... [2023-11-24 22:05:13,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed407eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:13, skipping insertion in model container [2023-11-24 22:05:13,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:05:13" (1/1) ... [2023-11-24 22:05:13,918 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:05:14,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:05:14,972 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) [2023-11-24 22:05:14,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3db01cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:14, skipping insertion in model container [2023-11-24 22:05:14,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:05:14,974 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 22:05:14,977 INFO L158 Benchmark]: Toolchain (without parser) took 1163.73ms. Allocated memory is still 125.8MB. Free memory was 81.6MB in the beginning and 84.6MB in the end (delta: -3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:05:14,978 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 74.8MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:05:14,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1160.87ms. Allocated memory is still 125.8MB. Free memory was 81.3MB in the beginning and 84.6MB in the end (delta: -3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:05:14,983 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 74.8MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1160.87ms. Allocated memory is still 125.8MB. Free memory was 81.3MB in the beginning and 84.6MB in the end (delta: -3.3MB). Peak memory consumption was 10.5MB. 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_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI --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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:05:17,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:05:17,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-24 22:05:17,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:05:17,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:05:17,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:05:17,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:05:17,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:05:17,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 22:05:17,791 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 22:05:17,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:05:17,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:05:17,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:05:17,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:05:17,795 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:05:17,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:05:17,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:05:17,797 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:05:17,798 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:05:17,798 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:05:17,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:05:17,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:05:17,800 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:05:17,800 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:05:17,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:05:17,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:05:17,802 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:05:17,802 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:05:17,803 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:05:17,803 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:05:17,805 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:05:17,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:05:17,805 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:05:17,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:05:17,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:05:17,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:05:17,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:05:17,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:05:17,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:05:17,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:05:17,809 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 22:05:17,810 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:05:17,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:05:17,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 22:05:17,811 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 22:05:17,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:05:17,812 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 22:05:17,812 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_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2023-11-24 22:05:18,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:05:18,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:05:18,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:05:18,327 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:05:18,328 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:05:18,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2023-11-24 22:05:21,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:05:22,107 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:05:22,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2023-11-24 22:05:22,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/data/21a5c4062/733ce844445045c8bac6d972d480a84a/FLAG3ccb8932a [2023-11-24 22:05:22,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/data/21a5c4062/733ce844445045c8bac6d972d480a84a [2023-11-24 22:05:22,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:05:22,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:05:22,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:05:22,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:05:22,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:05:22,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:05:22" (1/1) ... [2023-11-24 22:05:22,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554575bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:22, skipping insertion in model container [2023-11-24 22:05:22,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:05:22" (1/1) ... [2023-11-24 22:05:22,277 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:05:23,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:05:23,243 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 22:05:23,279 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:05:23,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:05:23,388 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:05:23,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:05:23,565 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:05:23,572 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:05:23,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23 WrapperNode [2023-11-24 22:05:23,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:05:23,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:05:23,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:05:23,575 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:05:23,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:23,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:23,715 INFO L138 Inliner]: procedures = 285, calls = 351, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1207 [2023-11-24 22:05:23,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:05:23,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:05:23,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:05:23,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:05:23,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:23,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:23,754 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:23,933 INFO L175 MemorySlicer]: Split 314 memory accesses to 5 slices as follows [2, 3, 34, 270, 5]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 64 writes are split as follows [0, 2, 4, 57, 1]. [2023-11-24 22:05:23,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:23,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:24,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:24,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:24,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:24,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:24,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:05:24,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:05:24,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:05:24,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:05:24,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (1/1) ... [2023-11-24 22:05:24,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:05:24,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 22:05:24,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 22:05:24,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 22:05:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 22:05:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 22:05:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 22:05:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 22:05:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 22:05:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 22:05:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-24 22:05:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 22:05:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 22:05:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 22:05:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 22:05:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-24 22:05:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:05:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 22:05:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 22:05:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 22:05:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 22:05:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 22:05:24,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-24 22:05:24,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:05:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 22:05:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 22:05:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 22:05:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 22:05:24,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-24 22:05:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 22:05:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 22:05:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 22:05:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 22:05:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-24 22:05:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-24 22:05:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-24 22:05:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:05:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-24 22:05:24,186 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-24 22:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 22:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 22:05:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 22:05:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 22:05:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-24 22:05:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-24 22:05:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-24 22:05:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:05:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:05:24,542 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:05:24,544 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:05:33,038 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:05:33,107 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:05:33,107 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-24 22:05:33,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:05:33 BoogieIcfgContainer [2023-11-24 22:05:33,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:05:33,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:05:33,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:05:33,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:05:33,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:05:22" (1/3) ... [2023-11-24 22:05:33,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e30c8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:05:33, skipping insertion in model container [2023-11-24 22:05:33,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:05:23" (2/3) ... [2023-11-24 22:05:33,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e30c8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:05:33, skipping insertion in model container [2023-11-24 22:05:33,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:05:33" (3/3) ... [2023-11-24 22:05:33,117 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2023-11-24 22:05:33,138 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:05:33,138 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 22:05:33,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 22:05:33,199 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;@2bcee958, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:05:33,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 22:05:33,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 232 states have (on average 1.6336206896551724) internal successors, (379), 237 states have internal predecessors, (379), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-24 22:05:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:05:33,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:33,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:05:33,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:33,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:33,222 INFO L85 PathProgramCache]: Analyzing trace with hash -711634754, now seen corresponding path program 1 times [2023-11-24 22:05:33,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:33,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21464870] [2023-11-24 22:05:33,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:05:33,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:33,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:33,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:33,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:05:33,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:05:33,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:33,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:33,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:05:33,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:33,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21464870] [2023-11-24 22:05:33,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21464870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:05:33,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:05:33,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:05:33,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970627174] [2023-11-24 22:05:33,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:05:33,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 22:05:33,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:33,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 22:05:33,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 22:05:33,628 INFO L87 Difference]: Start difference. First operand has 259 states, 232 states have (on average 1.6336206896551724) internal successors, (379), 237 states have internal predecessors, (379), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) 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) [2023-11-24 22:05:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:33,708 INFO L93 Difference]: Finished difference Result 254 states and 332 transitions. [2023-11-24 22:05:33,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:05:33,711 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 [2023-11-24 22:05:33,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:33,723 INFO L225 Difference]: With dead ends: 254 [2023-11-24 22:05:33,723 INFO L226 Difference]: Without dead ends: 253 [2023-11-24 22:05:33,725 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 [2023-11-24 22:05:33,729 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:33,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 22:05:33,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-24 22:05:33,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2023-11-24 22:05:33,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 228 states have (on average 1.3026315789473684) internal successors, (297), 233 states have internal predecessors, (297), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-24 22:05:33,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 331 transitions. [2023-11-24 22:05:33,789 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 331 transitions. Word has length 9 [2023-11-24 22:05:33,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:33,790 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 331 transitions. [2023-11-24 22:05:33,790 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) [2023-11-24 22:05:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 331 transitions. [2023-11-24 22:05:33,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:05:33,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:33,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:05:33,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:33,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:33,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:33,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:33,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1093340257, now seen corresponding path program 1 times [2023-11-24 22:05:33,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:33,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11415930] [2023-11-24 22:05:33,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:05:33,997 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 [2023-11-24 22:05:33,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:34,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:34,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:05:34,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:05:34,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:34,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:05:34,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:34,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11415930] [2023-11-24 22:05:34,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11415930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:05:34,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:05:34,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:05:34,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477886592] [2023-11-24 22:05:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:05:34,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:05:34,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:34,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:05:34,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:05:34,418 INFO L87 Difference]: Start difference. First operand 253 states and 331 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) [2023-11-24 22:05:36,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 22:05:41,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 22:05:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:41,385 INFO L93 Difference]: Finished difference Result 410 states and 539 transitions. [2023-11-24 22:05:41,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:05:41,385 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 [2023-11-24 22:05:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:41,389 INFO L225 Difference]: With dead ends: 410 [2023-11-24 22:05:41,389 INFO L226 Difference]: Without dead ends: 410 [2023-11-24 22:05:41,390 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 [2023-11-24 22:05:41,392 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 199 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:41,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 910 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-11-24 22:05:41,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-24 22:05:41,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 370. [2023-11-24 22:05:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 1.304093567251462) internal successors, (446), 347 states have internal predecessors, (446), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 22:05:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 486 transitions. [2023-11-24 22:05:41,431 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 486 transitions. Word has length 11 [2023-11-24 22:05:41,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:41,432 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 486 transitions. [2023-11-24 22:05:41,432 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) [2023-11-24 22:05:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 486 transitions. [2023-11-24 22:05:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 22:05:41,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:41,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:05:41,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:41,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:41,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:41,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:41,638 INFO L85 PathProgramCache]: Analyzing trace with hash -2126280651, now seen corresponding path program 1 times [2023-11-24 22:05:41,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:41,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197375233] [2023-11-24 22:05:41,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:05:41,639 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 [2023-11-24 22:05:41,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:41,640 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:41,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:05:41,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:05:41,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:41,930 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:05:41,931 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:05:41,932 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:05:41,943 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 [2023-11-24 22:05:42,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:05:42,028 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 [2023-11-24 22:05:42,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:42,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:05:42,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:42,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197375233] [2023-11-24 22:05:42,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197375233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:05:42,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:05:42,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:05:42,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697087163] [2023-11-24 22:05:42,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:05:42,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:05:42,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:42,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:05:42,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:05:42,055 INFO L87 Difference]: Start difference. First operand 370 states and 486 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) [2023-11-24 22:05:42,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:42,969 INFO L93 Difference]: Finished difference Result 581 states and 770 transitions. [2023-11-24 22:05:42,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:05:42,970 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 [2023-11-24 22:05:42,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:42,974 INFO L225 Difference]: With dead ends: 581 [2023-11-24 22:05:42,975 INFO L226 Difference]: Without dead ends: 581 [2023-11-24 22:05:42,975 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 [2023-11-24 22:05:42,976 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 270 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:42,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 1072 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 22:05:42,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-11-24 22:05:42,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 369. [2023-11-24 22:05:43,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 341 states have (on average 1.3020527859237536) internal successors, (444), 346 states have internal predecessors, (444), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 22:05:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 484 transitions. [2023-11-24 22:05:43,003 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 484 transitions. Word has length 14 [2023-11-24 22:05:43,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:43,004 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 484 transitions. [2023-11-24 22:05:43,004 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) [2023-11-24 22:05:43,004 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 484 transitions. [2023-11-24 22:05:43,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 22:05:43,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:43,006 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] [2023-11-24 22:05:43,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:43,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:43,210 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:43,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:43,211 INFO L85 PathProgramCache]: Analyzing trace with hash -130810140, now seen corresponding path program 1 times [2023-11-24 22:05:43,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:43,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609757066] [2023-11-24 22:05:43,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:05:43,212 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 [2023-11-24 22:05:43,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:43,216 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:43,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:05:43,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:05:43,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:43,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:43,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:05:43,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:43,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609757066] [2023-11-24 22:05:43,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609757066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:05:43,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:05:43,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:05:43,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452837346] [2023-11-24 22:05:43,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:05:43,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:05:43,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:43,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:05:43,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:05:43,646 INFO L87 Difference]: Start difference. First operand 369 states and 484 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) [2023-11-24 22:05:43,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:43,853 INFO L93 Difference]: Finished difference Result 377 states and 476 transitions. [2023-11-24 22:05:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:05:43,855 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 [2023-11-24 22:05:43,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:43,857 INFO L225 Difference]: With dead ends: 377 [2023-11-24 22:05:43,857 INFO L226 Difference]: Without dead ends: 377 [2023-11-24 22:05:43,859 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 [2023-11-24 22:05:43,864 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 36 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:43,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 858 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 22:05:43,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-24 22:05:43,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 375. [2023-11-24 22:05:43,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 347 states have (on average 1.2507204610951008) internal successors, (434), 352 states have internal predecessors, (434), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 22:05:43,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 474 transitions. [2023-11-24 22:05:43,890 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 474 transitions. Word has length 48 [2023-11-24 22:05:43,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:43,891 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 474 transitions. [2023-11-24 22:05:43,891 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) [2023-11-24 22:05:43,891 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 474 transitions. [2023-11-24 22:05:43,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 22:05:43,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:43,893 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] [2023-11-24 22:05:43,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-24 22:05:44,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:44,099 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:44,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:44,100 INFO L85 PathProgramCache]: Analyzing trace with hash 323773912, now seen corresponding path program 1 times [2023-11-24 22:05:44,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:44,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806655565] [2023-11-24 22:05:44,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:05:44,101 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 [2023-11-24 22:05:44,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:44,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:44,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:05:44,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:05:44,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:44,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:05:44,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:44,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806655565] [2023-11-24 22:05:44,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806655565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:05:44,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:05:44,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 22:05:44,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485471053] [2023-11-24 22:05:44,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:05:44,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:05:44,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:44,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:05:44,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:05:44,510 INFO L87 Difference]: Start difference. First operand 375 states and 474 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) [2023-11-24 22:05:44,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:44,848 INFO L93 Difference]: Finished difference Result 384 states and 483 transitions. [2023-11-24 22:05:44,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:05:44,849 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 [2023-11-24 22:05:44,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:44,852 INFO L225 Difference]: With dead ends: 384 [2023-11-24 22:05:44,852 INFO L226 Difference]: Without dead ends: 384 [2023-11-24 22:05:44,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-24 22:05:44,853 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 11 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:44,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1530 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 22:05:44,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-24 22:05:44,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2023-11-24 22:05:44,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 353 states have (on average 1.2492917847025495) internal successors, (441), 359 states have internal predecessors, (441), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-24 22:05:44,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 483 transitions. [2023-11-24 22:05:44,869 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 483 transitions. Word has length 48 [2023-11-24 22:05:44,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:44,870 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 483 transitions. [2023-11-24 22:05:44,870 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) [2023-11-24 22:05:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 483 transitions. [2023-11-24 22:05:44,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-24 22:05:44,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:44,873 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] [2023-11-24 22:05:44,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:45,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:45,079 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:45,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:45,080 INFO L85 PathProgramCache]: Analyzing trace with hash -441157344, now seen corresponding path program 1 times [2023-11-24 22:05:45,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:45,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897435168] [2023-11-24 22:05:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:05:45,081 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 [2023-11-24 22:05:45,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:45,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:45,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:05:45,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:05:45,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:45,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:05:45,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:45,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897435168] [2023-11-24 22:05:45,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897435168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:05:45,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:05:45,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 22:05:45,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86348188] [2023-11-24 22:05:45,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:05:45,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:05:45,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:45,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:05:45,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:05:45,838 INFO L87 Difference]: Start difference. First operand 384 states and 483 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) [2023-11-24 22:05:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:46,328 INFO L93 Difference]: Finished difference Result 390 states and 491 transitions. [2023-11-24 22:05:46,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:05:46,328 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 [2023-11-24 22:05:46,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:46,333 INFO L225 Difference]: With dead ends: 390 [2023-11-24 22:05:46,333 INFO L226 Difference]: Without dead ends: 390 [2023-11-24 22:05:46,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-24 22:05:46,334 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 17 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:46,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1397 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 22:05:46,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-24 22:05:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 387. [2023-11-24 22:05:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 354 states have (on average 1.2485875706214689) internal successors, (442), 361 states have internal predecessors, (442), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 19 states have call predecessors, (21), 20 states have call successors, (21) [2023-11-24 22:05:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 487 transitions. [2023-11-24 22:05:46,351 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 487 transitions. Word has length 60 [2023-11-24 22:05:46,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:46,352 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 487 transitions. [2023-11-24 22:05:46,352 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) [2023-11-24 22:05:46,352 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 487 transitions. [2023-11-24 22:05:46,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-24 22:05:46,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:46,354 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] [2023-11-24 22:05:46,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-24 22:05:46,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:46,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:46,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash 468705426, now seen corresponding path program 1 times [2023-11-24 22:05:46,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:46,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254146344] [2023-11-24 22:05:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:05:46,592 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 [2023-11-24 22:05:46,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:46,593 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:46,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:05:47,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:05:47,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:47,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:05:47,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:47,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254146344] [2023-11-24 22:05:47,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254146344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:05:47,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:05:47,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:05:47,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164310085] [2023-11-24 22:05:47,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:05:47,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:05:47,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:47,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:05:47,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:05:47,125 INFO L87 Difference]: Start difference. First operand 387 states and 487 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) [2023-11-24 22:05:47,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:47,253 INFO L93 Difference]: Finished difference Result 389 states and 490 transitions. [2023-11-24 22:05:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:05:47,253 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 [2023-11-24 22:05:47,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:47,257 INFO L225 Difference]: With dead ends: 389 [2023-11-24 22:05:47,257 INFO L226 Difference]: Without dead ends: 389 [2023-11-24 22:05:47,257 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 [2023-11-24 22:05:47,258 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 0 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:47,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 922 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 22:05:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-11-24 22:05:47,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2023-11-24 22:05:47,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 355 states have (on average 1.2507042253521128) internal successors, (444), 363 states have internal predecessors, (444), 24 states have call successors, (24), 7 states have call predecessors, (24), 8 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2023-11-24 22:05:47,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 490 transitions. [2023-11-24 22:05:47,273 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 490 transitions. Word has length 65 [2023-11-24 22:05:47,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:47,274 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 490 transitions. [2023-11-24 22:05:47,274 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) [2023-11-24 22:05:47,274 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 490 transitions. [2023-11-24 22:05:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-24 22:05:47,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:47,276 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] [2023-11-24 22:05:47,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:47,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:47,484 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:47,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:47,484 INFO L85 PathProgramCache]: Analyzing trace with hash -638364359, now seen corresponding path program 1 times [2023-11-24 22:05:47,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:47,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197918615] [2023-11-24 22:05:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:05:47,485 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 [2023-11-24 22:05:47,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:47,486 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:47,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:05:48,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 22:05:48,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:48,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:48,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:05:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:48,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:48,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197918615] [2023-11-24 22:05:48,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197918615] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:05:48,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:05:48,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-24 22:05:48,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296042117] [2023-11-24 22:05:48,304 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:05:48,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 22:05:48,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:48,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 22:05:48,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 22:05:48,306 INFO L87 Difference]: Start difference. First operand 389 states and 490 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) [2023-11-24 22:05:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:48,681 INFO L93 Difference]: Finished difference Result 398 states and 504 transitions. [2023-11-24 22:05:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-24 22:05:48,682 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 [2023-11-24 22:05:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:48,685 INFO L225 Difference]: With dead ends: 398 [2023-11-24 22:05:48,685 INFO L226 Difference]: Without dead ends: 398 [2023-11-24 22:05:48,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2023-11-24 22:05:48,686 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 4 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:48,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1529 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 22:05:48,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-24 22:05:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2023-11-24 22:05:48,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 362 states have (on average 1.2624309392265194) internal successors, (457), 370 states have internal predecessors, (457), 24 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2023-11-24 22:05:48,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 503 transitions. [2023-11-24 22:05:48,704 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 503 transitions. Word has length 66 [2023-11-24 22:05:48,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:48,705 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 503 transitions. [2023-11-24 22:05:48,705 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) [2023-11-24 22:05:48,705 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 503 transitions. [2023-11-24 22:05:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-24 22:05:48,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:48,708 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] [2023-11-24 22:05:48,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-24 22:05:48,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:48,917 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:48,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:48,917 INFO L85 PathProgramCache]: Analyzing trace with hash 997937746, now seen corresponding path program 2 times [2023-11-24 22:05:48,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:48,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609381011] [2023-11-24 22:05:48,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:05:48,918 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 [2023-11-24 22:05:48,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:48,919 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:48,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:49,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 22:05:49,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:05:49,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 22:05:49,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:49,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:05:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:05:50,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:50,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609381011] [2023-11-24 22:05:50,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609381011] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:05:50,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:05:50,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-24 22:05:50,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579913625] [2023-11-24 22:05:50,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:05:50,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-24 22:05:50,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:50,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-24 22:05:50,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-24 22:05:50,280 INFO L87 Difference]: Start difference. First operand 397 states and 503 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) [2023-11-24 22:05:51,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:51,713 INFO L93 Difference]: Finished difference Result 409 states and 522 transitions. [2023-11-24 22:05:51,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-24 22:05:51,714 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 [2023-11-24 22:05:51,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:51,717 INFO L225 Difference]: With dead ends: 409 [2023-11-24 22:05:51,718 INFO L226 Difference]: Without dead ends: 407 [2023-11-24 22:05:51,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2023-11-24 22:05:51,719 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 8 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:51,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1834 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-24 22:05:51,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-24 22:05:51,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2023-11-24 22:05:51,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 371 states have (on average 1.2641509433962264) internal successors, (469), 379 states have internal predecessors, (469), 24 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2023-11-24 22:05:51,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 515 transitions. [2023-11-24 22:05:51,745 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 515 transitions. Word has length 69 [2023-11-24 22:05:51,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:51,747 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 515 transitions. [2023-11-24 22:05:51,747 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) [2023-11-24 22:05:51,747 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 515 transitions. [2023-11-24 22:05:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 22:05:51,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:51,750 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] [2023-11-24 22:05:51,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-24 22:05:51,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:51,960 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:51,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:51,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1628202766, now seen corresponding path program 3 times [2023-11-24 22:05:51,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:51,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509218726] [2023-11-24 22:05:51,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 22:05:51,961 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 [2023-11-24 22:05:51,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:51,964 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:51,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:52,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-24 22:05:52,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:05:52,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:05:52,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-24 22:05:52,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:05:53,304 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-24 22:05:53,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:53,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509218726] [2023-11-24 22:05:53,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509218726] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:05:53,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:05:53,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-24 22:05:53,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624551423] [2023-11-24 22:05:53,305 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:05:53,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 22:05:53,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:53,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 22:05:53,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-24 22:05:53,307 INFO L87 Difference]: Start difference. First operand 406 states and 515 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) [2023-11-24 22:05:55,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:05:55,836 INFO L93 Difference]: Finished difference Result 3083 states and 3979 transitions. [2023-11-24 22:05:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-24 22:05:55,837 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 [2023-11-24 22:05:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:05:55,857 INFO L225 Difference]: With dead ends: 3083 [2023-11-24 22:05:55,857 INFO L226 Difference]: Without dead ends: 3083 [2023-11-24 22:05:55,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2023-11-24 22:05:55,858 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 4128 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 5538 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-24 22:05:55,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4154 Valid, 5538 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-24 22:05:55,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3083 states. [2023-11-24 22:05:55,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3083 to 2121. [2023-11-24 22:05:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 1983 states have (on average 1.2778618255168936) internal successors, (2534), 2004 states have internal predecessors, (2534), 98 states have call successors, (98), 36 states have call predecessors, (98), 38 states have return successors, (102), 80 states have call predecessors, (102), 94 states have call successors, (102) [2023-11-24 22:05:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2734 transitions. [2023-11-24 22:05:55,943 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2734 transitions. Word has length 75 [2023-11-24 22:05:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:05:55,944 INFO L495 AbstractCegarLoop]: Abstraction has 2121 states and 2734 transitions. [2023-11-24 22:05:55,944 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) [2023-11-24 22:05:55,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2734 transitions. [2023-11-24 22:05:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-24 22:05:55,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:05:55,947 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] [2023-11-24 22:05:55,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-24 22:05:56,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:05:56,157 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:05:56,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:05:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash 249438597, now seen corresponding path program 1 times [2023-11-24 22:05:56,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:05:56,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306472489] [2023-11-24 22:05:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:05:56,158 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 [2023-11-24 22:05:56,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:05:56,159 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:05:56,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:05:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:05:57,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:05:57,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:05:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-24 22:05:57,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:05:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 22:05:59,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:05:59,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306472489] [2023-11-24 22:05:59,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306472489] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:05:59,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 22:05:59,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-24 22:05:59,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79442550] [2023-11-24 22:05:59,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 22:05:59,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-24 22:05:59,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:05:59,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-24 22:05:59,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-24 22:05:59,068 INFO L87 Difference]: Start difference. First operand 2121 states and 2734 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) [2023-11-24 22:06:04,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:06:04,977 INFO L93 Difference]: Finished difference Result 2226 states and 2919 transitions. [2023-11-24 22:06:04,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-24 22:06:04,978 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 [2023-11-24 22:06:04,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:06:04,990 INFO L225 Difference]: With dead ends: 2226 [2023-11-24 22:06:04,991 INFO L226 Difference]: Without dead ends: 2216 [2023-11-24 22:06:04,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2023-11-24 22:06:04,993 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 14 mSDsluCounter, 3965 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4274 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-24 22:06:04,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4274 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-24 22:06:04,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2023-11-24 22:06:05,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2211. [2023-11-24 22:06:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2073 states have (on average 1.2802701398938736) internal successors, (2654), 2094 states have internal predecessors, (2654), 98 states have call successors, (98), 36 states have call predecessors, (98), 38 states have return successors, (102), 80 states have call predecessors, (102), 94 states have call successors, (102) [2023-11-24 22:06:05,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 2854 transitions. [2023-11-24 22:06:05,077 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 2854 transitions. Word has length 111 [2023-11-24 22:06:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:06:05,077 INFO L495 AbstractCegarLoop]: Abstraction has 2211 states and 2854 transitions. [2023-11-24 22:06:05,078 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) [2023-11-24 22:06:05,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 2854 transitions. [2023-11-24 22:06:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-24 22:06:05,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:06:05,080 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] [2023-11-24 22:06:05,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-24 22:06:05,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 22:06:05,290 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 22:06:05,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:06:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1525892965, now seen corresponding path program 2 times [2023-11-24 22:06:05,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 22:06:05,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106364729] [2023-11-24 22:06:05,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:06:05,292 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 [2023-11-24 22:06:05,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 22:06:05,293 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 22:06:05,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00f154af-fc25-4643-9dd0-dba6945bcda7/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 22:06:05,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 22:06:05,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:06:05,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 22:06:05,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:06:05,850 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:06:05,851 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:06:05,852 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:06:05,857 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 [2023-11-24 22:06:05,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:06:05,933 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 [2023-11-24 22:06:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2023-11-24 22:06:05,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:06:05,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 22:06:05,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106364729] [2023-11-24 22:06:05,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106364729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:06:05,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:06:05,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:06:05,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706484553] [2023-11-24 22:06:05,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:06:05,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:06:05,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 22:06:05,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:06:05,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:06:05,957 INFO L87 Difference]: Start difference. First operand 2211 states and 2854 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)